10. Managing Stateful Applications

Kubernetes is a framework for managing complex applications in a containerized environment. It provides various facilities for managing container placement, resource allocation, service discovery, load balancing, scaling, etc. Kubernetes does not, however, have a notion of what an application actually is, nor is there a Kubernetes resource called ‘application’.

On a Kubernetes cluster, the pod is the basic operational unit. Containers are grouped into pods and deployed as individual units, or they are deployed under the control of various resource controllers such as ReplicaSet, StatefulSet, Deployment, etc. How to define a set of related Kubernetes resources as a single unit is left for users to decide. Fortunately, a number of solutions that address this problem have evolved in recent times:

Helm Release

Helm is a tool that streamlines the installation and management of Kubernetes applications. A Helm chart is a collection of specifications describing a related set of Kubernetes resources. A Helm release is a specific instance of a Helm chart which has been deployed to a Kubernetes cluster.

Custom Operator

Custom Operators are specialized controllers that automate complex tasks beyond the scope of what Kubernetes itself provides. They provide a way to extend the cluster’s behavior without making modifications to Kubernetes itself. Many ISVs have developed Operators that deploy their software on Kubernetes.

Topics covered in this chapter:

robin app create

Create an application

robin app register

Register a stateful application

robin app unregister

Unregister a stateful application

robin app delete

Delete an application

robin app list

List applications

robin app info

Display detailed information about an app

robin app status

Display the status of the objects associated with an app

robin app attach-repo

Attach an external storage repo to an app

robin app detach-repo

Detaches a previously attached repo from an app

robin app snapshot-schedule

Configures a snapshot schedule for an app

robin app backup-schedule

Configures a backup schedule for an app

robin app restore

Revert an app to the point-in-time of specified snapshot or backup

robin app share

Share an app with one or more tenant users

robin app unshare

Stop sharing an app with one or more tenant users

robin app list-shares

List application shares

robin app change-owner

Reassign ownership of an app

10.1. Application life cycle management

The lack of a proper Application construct in Kubernetes poses a problem when it comes to managing the life cycle of a complex application made up of various Kubernetes resources. For example, how would one snapshot or clone an entire Helm release that spans PersistVolumeClaims, Secrets, ConfigMaps, SatefulSet, Pods, Services etc? Or how about snapshotting a web tier, app tier and database tier each deployed separately using three different kubectl manifest files?

10.2. Robin Applications

Robin provides a framework for managing stateful applications deployed on a Kubernetes cluster. All resources that together deliver a service to the end user are collected together into a single unit, which Robin calls an Application. Robin maintains metadata on each of the application’s associated resources in its configuration database. This allows Robin to perform life cycle management operations, such as snapshot, backup, restore, etc., that encompass all of an application’s data and metadata (state of each Kubernetes resource). by Robin:

10.2.1. Helm

Helm provides the ability to deploy applications to a Kubernetes cluster using Helm charts containing all specifications and resources necessary for application deployment. When Helm deploys an application, it takes responsibility for creating all relevant Kubernetes resources. Helm Applications are not automatically known to Robin CNS. But they can be registered with the Robin CNS cluster. In order for this to work, all storage for the application must be from the Robin CNS. The application also needs to be registered with Robin CNS.

10.2.2. FlexApp

Robin CNS also provides a very flexible mechanism for registering any set of Kubernetes resources as a Robin Application. The FlexApp construct uses label selector rules to group the resources together. For example, --select app=apache --select app=mysql would select Pods and PVCs for a web and database tier together into a single FlexApp object. To command to create/register a FlexApp, is detailed in the sections below.

10.3. Helm Releases

A Helm chart is a collection of specifications describing a related set of Kubernetes resources. A Helm release is a specific instance of a Helm chart deployed to a Kubernetes cluster. Robin CNS supports the registration of a Helm release as a HELM Application, which allows the application to be managed using Robin CNS’s life cycle management facilities. In order for this to work, all storage for the application must be from the Robin CNS. The application also needs to be deployed to the user’s assigned Kubernetes namespace.

Moreover Robin allows for the auto-registration of Helm releases when the config attribute k8s_auto_registration is set to true. This results in any newly created instances of Helm charts being exposed to the lifecycle management features Robin provides without any user intervention. However there are certain caveats to utilizing this feature:

  • Releases were created previously in namespaces that have since been imported into Robin will not be picked up immediately. As a result there will be an initial delay before the application is made visible to Robin users. Of course, one is always able to manually register the pre-existing application to hasten this process.

10.3.1. Register a Helm Release

The following example assumes superadmin user admin is setting up the Helm environment for Robin user user1 who is a member of Tenant t1 with namespace robinapps.

Log in as the superadmin user:

# robin login admin
Password: <admin_password>
User admin is logged into Administrators tenant

List namespaces :

# robin namespace list
+--------------+----------------------+-------------------+
| Name         | Owner/Tenant         | Primary Namespace |
+--------------+----------------------+-------------------+
| t001-u000003 | admin/Administrators | True              |
| robinapps    | user1/t1             | True              |
+--------------+----------------------+-------------------+

Create project with the namespace name and provide needed scc:

# oc project robinapps
# oc adm policy add-scc-to-user privileged -z default

Note

The commands starting with oc are applicable for the OpenShift environment.

Log in as user1:

# robin login user1
Password: <user1_password>
User user1 is logged into t1 tenant

Get the current user context for user1:

The robin whoami command returns useful information about the current Robin CNS user. It includes a list of tenants the user is a member of (user1 is only a member of one tenant) and which tenant they are currently logged into. Additionally, the whoami output includes the Kubernetes namespace that has been assigned to the user for their current tenant. This is the namespace the Helm chart needs to be installed into.

# robin whoami
       username: user1
         tenant: t1
        tenants: ['t1']
      namespace: robinapps
session_expires: 2020-01-24T11:53:02

Add the bitnami Helm repo for the current user:

# helm repo add bitnami https://charts.bitnami.com/bitnami
 "bitnami" has been added to your repositories

Install the bitnami/mysql Helm chart:

With respect to the helm command line below, note that persistence.storageClass is set equal to ‘robin’. Using Robin Storage is a requirement for Helm release registration with Robin. Also note the inclusion of the current user’s assigned namespace in the Helm command line. The --namespace parameter specifies which Kubernetes namespace the application resources will be bound to.

# helm install demo bitnami/mysql --set global.storageClass=robin --namespace robinapps
 NAME: demo
 LAST DEPLOYED: Thu Aug 19 22:23:54 2021
 NAMESPACE: robinapps
 STATUS: deployed
 REVISION: 1
 NOTES:
 MySQL can be accessed via port 3306 on the following DNS name from within your cluster:
 mysqldb.robinapps.svc.cluster.local

To get your root password run:

    MYSQL_ROOT_PASSWORD=$(kubectl get secret --namespace robinapps mysqldb -o jsonpath="{.data.mysql-root-password}" | base64 --decode; echo)

To connect to your database:

1. Run an Ubuntu pod that you can use as a client:

    kubectl run -i --tty ubuntu --image=ubuntu:16.04 --restart=Never -- bash -il

2. Install the mysql client:

    $ apt-get update && apt-get install mysql-client -y

3. Connect using the mysql cli, then provide your password:
    $ mysql -h mysqldb -p

To connect to your database directly from outside the K8s cluster:
    MYSQL_HOST=127.0.0.1
    MYSQL_PORT=3306

    # Execute the following command to route the connection:
    kubectl port-forward svc/mysqldb 3306

    mysql -h ${MYSQL_HOST} -P${MYSQL_PORT} -u root -p${MYSQL_ROOT_PASSWORD}

Get the Helm release name:

# helm list --namespace robinapps
NAME           NAMESPACE       REVISION        UPDATED                                 STATUS          CHART           APP VERSION
mysqldb        robinapps       1               2020-10-06 03:37:21.126307438 +0000 UTC deployed        mysql-1.6.7     5.7.30

Verify that the app is registered with Robin:

# robin app list
Helm/Flex Apps:

+----------+------+--------+----------------------+--------------+-----------+---------+
| Name     | Type | State  | Owner/Tenant         | Namespace    | Snapshots | Backups |
+----------+------+--------+----------------------+--------------+-----------+---------+
| mysqldb  | helm | ONLINE | user1/t1             | robinapps    | 0         | 0       |
+----------+------+--------+----------------------+--------------+-----------+---------+

Get detailed information about the resulting application:

$ robin app info mysqldb
Name                              : mysqldb
Kind                              : helm
State                             : ONLINE
Number of repos                   : 0
Number of snapshots               : 0
Number of usable backups          : 0
Number of archived/failed backups : 0

Query:
-------
{'apps': ['helm/mysqldb@robinapps'], 'namespace': 'robinapps', 'selectors': [], 'resources': []}

10.3.2. Register a Helm Release (Helm 2)

Note

Support for Helm 2 and Tiller is deprecated and will be removed in the next release.

Following is a step-by-step walkthrough, showing how to configure the Helm environment for a Robin user, how to install a Helm chart that generates a Helm release suitable for registration with Robin Platform, and how to perform a Helm release registration. Note that the initial steps must be performed by a superadmin user. The remaining steps are to be performed by the Robin CNS user.

The following example assumes superadmin user admin is setting up the Helm environment for Robin CNS user user1 who is a member of Tenant t1.

Log in as the superadmin user:

# robin login admin
Password: <admin_password>
User admin is logged into Administrators tenant

Generate a list of Robin CNS users:

# robin user list
ID | Username | Full Name     | Email | Tenants        | Current Tenant | Current Role | Current Namespace | Authentication
---+----------+---------------+-------+----------------+----------------+--------------+-------------------+----------------
3  | admin    | Robin Systems |       | Administrators | Administrators | superadmin   | t001-u000003      | local
4  | user1    |               |       | t1             | t1             | user         | robinapps         | local

Note the Current Namespace for user1: robinapps

Deploy Tiller objects for user1’s assigned namespace:

The following command creates a number of Kubernetes resources (tiller ServiceAccount and RoleBinding) that will be needed by Tiller when it gets deployed into the user’s assigned namespace.

# robin k8s deploy-tiller-objects robinapps
Tiller objects were successfully deployed for namespace 'robinapps'

Log in as user1:

# robin login user1
Password: <user1_password>
User user1 is logged into t1 tenant

Get the current user context for user1:

The robin whoami command returns useful information about the current Robin CNS user. It includes a list of tenants the user is a member of (user1 is only a member of one tenant) and which tenant they are currently logged into. Additionally, the whoami output includes the Kubernetes namespace that has been assigned to the user for their current tenant. This is the namespace the Helm chart needs to be installed into.

# robin whoami
       username: user1
         tenant: t1
        tenants: ['t1']
      namespace: robinapps
session_expires: 2020-01-24T11:53:02

Set up Helm and deploy Tiller in user1’s assigned namespace:

The following command sets up Helm for use by the current Robin Platform user (user1). It first copies the CA cert and the user’s cert and key into the .helm directory in the user’s HOME directory. It then issues a ‘helm2 init’ command to deploy Tiller into the user’s assigned namespace.

# robin k8s helm-setup robinapps
Helm initialized successfully

Wait for Tiller to be deployed:

# helm2 list --tls --tiller-namespace=robinapps
Error: could not find tiller

Repeat the above command until no errors are returned

Add the stable Helm repo for the current user:

# helm2 repo add stable https://kubernetes-charts.storage.googleapis.com
"stable" has been added to your repositories

Install the stable/mysql Helm chart:

With respect to the helm2 command line below, note that persistence.storageClass is set equal to ‘robin’. Using Robin Storage is a requirement for Helm release registration with Robin Platform. Also note the inclusion of the current user’s assigned namespace in two places in the Helm command line. The --namespace parameter specifies which Kubernetes namespace the application resources will be bound to. The --tiller-namespace parameter tells Helm which namespace Tiller has been deployed to. The namespace for both parameters must be the same and it must be the namespace assigned to the user by Robin CNS.

# helm install stable/mysql --tls --set persistence.storageClass=robin --namespace robinapps --tiller-namespace=robinapps
NAME:   billowing-tortoise
LAST DEPLOYED: Wed Jan 22 21:55:24 2020
NAMESPACE: robinapps
STATUS: DEPLOYED

RESOURCES:
==> v1/ConfigMap
NAME                           AGE
billowing-tortoise-mysql-test  0s

==> v1/Deployment
NAME                      AGE
billowing-tortoise-mysql  0s

==> v1/PersistentVolumeClaim
NAME                      AGE
billowing-tortoise-mysql  0s

==> v1/Pod(related)
NAME                                      AGE
billowing-tortoise-mysql-d4f976d96-89x5c  0s

==> v1/Secret
NAME                      AGE
billowing-tortoise-mysql  0s

==> v1/Service
NAME                      AGE
billowing-tortoise-mysql  0s


NOTES:
MySQL can be accessed via port 3306 on the following DNS name from within your cluster:
billowing-tortoise-mysql.robinapps.svc.cluster.local

To get your root password run:

    MYSQL_ROOT_PASSWORD=$(kubectl get secret --namespace robinapps billowing-tortoise-mysql -o jsonpath="{.data.mysql-root-password}" | base64 --decode; echo)

To connect to your database:

1. Run an Ubuntu pod that you can use as a client:

    kubectl run -i --tty ubuntu --image=ubuntu:16.04 --restart=Never -- bash -il

2. Install the mysql client:

    $ apt-get update && apt-get install mysql-client -y

3. Connect using the mysql cli, then provide your password:
    $ mysql -h billowing-tortoise-mysql -p

To connect to your database directly from outside the K8s cluster:
    MYSQL_HOST=127.0.0.1
    MYSQL_PORT=3306

    # Execute the following command to route the connection:
    kubectl port-forward svc/billowing-tortoise-mysql 3306

    mysql -h ${MYSQL_HOST} -P${MYSQL_PORT} -u root -p${MYSQL_ROOT_PASSWORD}

Get the Helm release name:

Note that the --tls flag is required for all Helm commands because Helm and Tiller were configured to require the user’s TLS cert and key (coped to the .helm directory in a previous step).

# helm list --tls --tiller-namespace=robinapps
NAME                    REVISION        UPDATED                         STATUS          CHART           APP VERSION     NAMESPACE
billowing-tortoise      1               Wed Jan 22 21:55:24 2020        DEPLOYED        mysql-1.6.2     5.7.28          robinapps

Manually register Helm release as a HELM Application:

# robin app register mysql --app helm/billowing-tortoise -n robinapps
Job:  114 Name: K8SAppRegister       State: PREPARED        Error: 0
Job:  114 Name: K8SAppRegister       State: COMPLETED       Error: 0

Get detailed information about the resulting application:

# robin app info mysql
Name                              : mysql
Kind                              : helm
State                             : ONLINE
Number of repos                   : 0
Number of snapshots               : 0
Number of usable backups          : 0
Number of archived/failed backups : 0

Query:
-------
{'namespace': 'robinapps', 'apps': ['helm/billowing-tortoise'], 'resources': [], 'selectors': []}

10.4. Robin FlexApp Applications

Robin CNS provides a very flexible mechanism for registering any set of Kubernetes resources as a Robin Application. The FlexApp construct uses label selector rules to group the resources together. For example, --select app=apache --select app=mysql would select Pods and PVCs for a web and database tier together into a single FlexApp object. To create a FlexApp, use this command:

# robin app register <app-name>
                     --selector <label-name>=<label-value>
                     --resource <resource-type>/<resource-name>
                     --namespace <namespace>
                     --dry-run

<app-name>

Name to assign to FlexApp

--selector <label-name>=<label-value>

Resources with these Kubernetes labels would be selected to be part of this FlexApp

--resource <resource-type>/<resource-name>

Resources of the specified type and name would be selected to be part of this FlexApp

--namespace <namespace>

Namespace in which the Kubernetes resources are deployed.

--dry-run

Using this option would display the kind, name and status of the objects to be picked up. Note, this will not register the application.

Selecting resources that have more than one matching label (AND condition):

This is achieved by comma-seperating label name=value pairs as follows: --select tier=frontend,env=dev will select resources that have both tier = frontend AND env = dev labels on it.

Selecting resources that have at least one of the matching labels (OR condition):

This is achieved by specifying the --select option multiple times. For example: --select env=dev --select env=prod will select any resource that has either env = dev or env = prod labels on it.

Selecting resources of a certain type with matching labels:

Let’s say one wants to select only PersistentVolumeClaims and StatefulSelect type resources with matching labels. That is, any other resource with a matching label should not be selected. This is achieved by specifying the resource name as a prefix to the label name as follows: --select pvc,statefulset:tier=database

Explicitly selecting certain resources:

The --resource option is used to specify explicitly which Kubernetes resources are to be made part of the FlexApp. The format to specify this is as follows: --resource <resource-type>/<resource-name>, where <resource-name> is any of the resources (“Kind”) that the Kubernetes cluster recognizes, such as PersistentVolumeClaims (pvc), StatefulSets, Services, etc.

  • Running kubectl api-resources would list all valid values of <resource-type>

  • Running kubectl get <resource-type> would list all valid <resource-name> of that specific resource type

10.5. Create an Application

Robin supports the creation of applications from a number of sources:

from-snapshot

Create a clone of an existing application from one of the application’s snapshots

from-backup

Create a new application instance from an application backup

10.5.1. Create an application from a snapshot

In addition to providing for disaster recovery, application snapshots allow for the creation of an exact copy, or clone of an application instance. Creating a clone of an existing application instance can be very useful. For example, it allows for reports to be run on a database without affecting the source database application, for UAT tests, for validating patches before applying them to the production database, etc.

Cloning an application has typically required significant manual or scripting work and coordination across the storage layer and the application metadata layer (Kubernetes Pod, StatefulSet, PVC, Service etc). With Robin one can clone an entire application or application stack with one single command robin app create from-snapshot. Running this command creates a clone of an entire application from a previously taken application snapshot. Once complete the application is ready for use right away.

Changes made to the clone are not visible in the parent application from which the clone was created. Similarly, any changes made to the parent application are not visible to the clone. At the storage layer, Robin’s thin cloning technology is leveraged. Which means that a cloned PersistentVolume is not a physical copy of the source volume. Instead, it is a virtual copy, where only metadata is physically copied with the actual data being shared between the clone and the source. Changes made to either the clone or the source are localized into their own writable data streams, whereas any common unmodified data is shared.

To summarize a clone of an existing application instance can be created from an application snapshot with the following command:

# robin app create from-snapshot <app_name> <snapshotid>

app_name

Application instance name

snapshotid

Unique ID of the application snapshot, which can be obtained from the output of robin snapshot list

Example 1 (Create a clone of a Robin app from a snapshot):

# robin app create from-snapshot mysql-c1 ec2bdeba447211eaa2028d14cd0bbca6 --rpool default --wait
Job:  187 Name: ApplicationClone     State: VALIDATED       Error: 0
Job:  187 Name: ApplicationClone     State: WAITING         Error: 0
Job:  187 Name: ApplicationClone     State: FINALIZED       Error: 0
Job:  187 Name: ApplicationClone     State: COMPLETED       Error: 0

Example 2 (Create a clone (FLEX app) of a HELM app from a snapshot):

# robin app create from-snapshot mysql1-c1 d17d19f044ba11ea8e7831d18d69fbab --wait
Job:  198 Name: K8SApplicationClone  State: PREPARED        Error: 0
Job:  198 Name: K8SApplicationClone  State: AGENT_WAIT      Error: 0
Job:  198 Name: K8SApplicationClone  State: COMPLETED       Error: 0

10.5.2. Create an application from a backup

A application instance can be created from an application backup with the following command:

# robin app create from-backup <app_name> <backupid>

app_name

Application instance name

backupid

Unique ID of the application backup, which can be obtained from the output of robin backup list

Example 1 (Create a Robin app from a backup):

# robin app create from-backup mysql-b2 ee529688447211eabaf85b58e9f190fd --rpool default --zone 1580531960 --wait
Job:  182 Name: ApplicationCreate    State: VALIDATED       Error: 0
Job:  182 Name: ApplicationCreate    State: WAITING         Error: 0
Job:  182 Name: ApplicationCreate    State: COMPLETED       Error: 0

Example 2 (Create a FLEX app from the backup of a HELM app):

# robin app create from-backup mysql1-b2 952f3738447211ea99cee7cd7390d6c9 --wait
Job:  181 Name: K8SApplicationCreate State: PREPARED        Error: 0
Job:  181 Name: K8SApplicationCreate State: AGENT_WAIT      Error: 0
Job:  181 Name: K8SApplicationCreate State: COMPLETED       Error: 0

10.6. Register a Stateful Application

Run this command to register a stateful application with Robin CNS:

# robin app register <appname>
                     --app <stateful_app>
                     --resource <resource>
                     --selector <selector>
                     --namespace <namespace>
                     --dry-run
                     --specs

<appname>

The name to assign to this app in Robin CNS. To make it easy to associate with a specific Helm release that this app refers to, it is best to use a name that matches the helm release name

--app <stateful_app>

Helm or operator based applications. Ex: helm/<release_name>

--resource <resource>

Kubernetes native objects. Ex: pvc/<name> or pod/<name>

--selector <selector>

Kubernetes selectors. Ex: release=mongo-1.0,heritage=tiller

--namespace <namespace>

Kubernetes namespace in which the application exists

--dry-run

Show the kind, name and status of the objects to be picked up. Note this will not register the application

--specs

Show the spec files of the objects to be picked up. Note this will not register the application

Example 1 (Install Helm chart stable/postgresql and register the resulting Helm release):

# helm install --tls --name pgsql stable/postgresql --set persistence.storageClass=robin --namespace robinapps --tiller-namespace robinapps

# robin app register pgsql --app helm/pgsql --namespace robinapps

Note

More than one helm release can be tracked in a single app by specifying --app command line option twice. For example, $ robin app register myblog --app helm/apache --app helm/mysql would track two different helm releases – (1) apache and (2) mysql as a single unit named myblog in Robin CNS.

10.7. Unregister a Stateful Application

Issue the following command to unregister a stateful application from Robin CNS:

# robin app unregister <appname>

<appname>

The name of a previously registered stateful application.

Example:

# robin app unregister mysql1 --wait
This will remove application 'mysql1' from the cluster. Do you want to continue [y/n] ? y
Job:  169 Name: K8SAppUnregister     State: PROCESSED       Error: 0
Job:  169 Name: K8SAppUnregister     State: COMPLETED       Error: 0

Note

If the app being unregistered is a Helm release previously registered on the Robin CNS cluster, it will only be removed from the cluster. The underlying Helm release will be left intact.

Unregister a stateful application from Robin CNS.

End Point: /api/v3/robin_server/k8s_app

Method: PUT

URL Parameters: None

Data Parameters:

  • action: unregister - This mandatory field within the payload specifies that the unregister operation is to be performed.

  • name: <app_name> - This mandatory field within the payload specifies the name of the application to be unregistered.

Port: RCM Port (default value is 29442)

Headers:

  • Authorization: <auth_token> : Authorization token to identify which user is sending the request. The token can be acquired from the login API.

Success Response Code: 202

Error Response Code: 500 (Internal Server Error), 404 (Not Found Error), 401 (Unauthorized Error), 400 (Invalid Api Usage Error)

Example Response:

Output
{
   "jobid":178
}

10.8. Delete an Application

Issue the following command to delete a Helm release and remove it from Robin.

# robin app delete <appname>
                     --force

app_name

Application instance name

--force

Force the deletion of the application and all associated Kubernetes objects.

Example:

# robin app delete mysql1 --wait -y --force
Job:  153 Name: K8SApplicationDeleteHelm State: VALIDATED       Error: 0
Job:  153 Name: K8SApplicationDeleteHelm State: COMPLETED       Error: 0

Note

By default, robin app delete will fail without the –force option. To override this behavior, include --force on the command line. If the desire is to remove the application from Robin CNS but leave the Kubernetes objects intact, then use the robin app unregister command.

Delete an application from a Robin CNS cluster

End Point: /api/v6/robin_server/apps/<app_name>

Method: DELETE

URL Parameters:

  • force=true : Utilizing this parameter results in the ungraceful termination of an application, which includes not running any relevant hook scripts.

  • del_snaps=true : Utilizing this parameter results in both the application and its associated snapshots being deleted.

Data Parameters: None

Port: RCM Port (default value is 29442)

Headers:

  • Authorization: <auth_token> : Authorization token to identify which user is sending the request. The token can be acquired from the login API.

Success Response Code: 202

Error Response Code: 500 (Internal Server Error), 404 (Not Found Error), 401 (Unauthorized Error), 400 (Invalid Api Usage Error)

Example Response:

Output
{
   "plan":{
      "enable_metrics":true,
      "auto_relocate":true,
      "pvcpolicy":"create",
      "enable_hooklogs":true,
      "zoneid":1597147518,
      "planid":710,
      "content_id":"64495e524cbc9f133d4b92bcc04e1f94",
      "name":"test-ds-1",
      "roles":[
         {
            "name":"server",
            "volume_groups":[

            ],
            "vnodes":[
               {
                  "allocated_host":"cscale-82-140.robinsystems.com",
                  "cm_keys":[
                     "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDN8WYsAfs0+a1zzAIWIVV5MrZUaur688E08BL7fm+1uBFjBRPEevwrYrNFL7ebjJxYuB1R3WR+IX8Mmz7CiMDvfEiAQL1Ihj4GZ32WSqzZ7MN15UJK4DQWY7sU++VIusyPUj5goVS2mPj0k4zhheNOlC8XaaHgyUq+NjHHDZF5B4mX7huWfM+kC4u5nCvajoHdfeOse4e1n5RlXtlKRqzBbIma6w8Ej32qFxRLvp4lUXzCylYHBLGH42CKWvtxvETwJUb1kIW9DExSnD+u5fd4Dc2D98\/SY79OO4+aa7GA7JV7412S5kWbtq5cpnkDlvhon\/XzLVQlIqIiAJ6ukVmx root@cscale-82-140"
                  ],
                  "pod_ns":"t001-u000003",
                  "hostname":"test-ds-1-server-01.t001-u000003.svc.cluster.local",
                  "k8s_provider":"robin",
                  "appid":46,
                  "vnodehookargs":{
                     "postcreate":[

                     ]
                  },
                  "numa_allocations":{
                     "0":{
                        "isol_shared_cores_used":0,
                        "gpu_used":0,
                        "hugepages_1g_used":0,
                        "hugepages_2m_used":0,
                        "mem_used":209715200,
                        "non_isol_cores_used":1,
                        "isol_dedicated_cores_used":0
                     }
                  },
                  "enable_portmapping":true,
                  "storage":[
                     {
                        "pvcpolicy":"create",
                        "lvm_type":"None",
                        "size":1073741824,
                        "stordriver":{
                           "type":"das",
                           "faultdomain":"host",
                           "protection":0,
                           "media":"HDD"
                        },
                        "disk_tags":{

                        },
                        "encryption":"none",
                        "vol_ns":"t001-u000003",
                        "snapshot_space_limit":214748365,
                        "fstype":"ext4",
                        "protection":0,
                        "workload":0,
                        "name":"test-ds-1.server.01.data.1.e5506da8-8c25-460d-926b-146ab4b2c9c8",
                        "blocksize":4096,
                        "compression":"disabled",
                        "type":"data",
                        "media":"HDD",
                        "faultdomain":"host",
                        "lvm_vol_count":"0",
                        "allocated":{
                           "partitions":0,
                           "volumeid":"159",
                           "params":{

                           },
                           "media":72,
                           "size":1073741824,
                           "stordriver":{
                              "type":"das",
                              "faultdomain":"host",
                              "protection":0,
                              "media":"HDD"
                           },
                           "block_size":4096,
                           "current_snapshot":"active_snap",
                           "multinode_mounting":false,
                           "snapshot_space_limit":214748365,
                           "slice_size":1073741824,
                           "protection":0,
                           "next_backupid":1,
                           "name":"test-ds-1.server.01.data.1.e5506da8-8c25-460d-926b-146ab4b2c9c8",
                           "next_snapshotid":2,
                           "qgroupid":158,
                           "priority":2,
                           "genkey":1597453455641718,
                           "appname":"default",
                           "grpid":158,
                           "replication":1,
                           "vtype":0,
                           "current_snapshotid":1,
                           "compression":0,
                           "appid":1,
                           "resource_poolid":1
                        },
                        "replication":1,
                        "snap_reserved":20,
                        "device":"\/dev\/sde",
                        "path":"\/data",
                        "layout":"round-robin",
                        "volgrp_name":"test-ds-1.server.01.72.1.100e29ae-e508-4f21-a253-e3c912fcc242",
                        "k8s_name":"test-ds-1-server-01-data-1-e5506da8"
                     },
                     {
                        "pvcpolicy":"create",
                        "lvm_type":"None",
                        "size":1073741824,
                        "stordriver":{
                           "type":"das",
                           "faultdomain":"host",
                           "protection":0,
                           "media":"HDD"
                        },
                        "disk_tags":{

                        },
                        "encryption":"none",
                        "vol_ns":"t001-u000003",
                        "snapshot_space_limit":214748365,
                        "fstype":"raw",
                        "protection":0,
                        "workload":0,
                        "name":"test-ds-1.server.01.block.1.fa7b93eb-46f5-4830-b664-4428ed4088e9",
                        "blocksize":4096,
                        "compression":"disabled",
                        "type":"block",
                        "media":"HDD",
                        "faultdomain":"host",
                        "lvm_vol_count":"0",
                        "allocated":{
                           "partitions":0,
                           "volumeid":"158",
                           "params":{

                           },
                           "media":72,
                           "size":1073741824,
                           "stordriver":{
                              "type":"das",
                              "faultdomain":"host",
                              "protection":0,
                              "media":"HDD"
                           },
                           "block_size":4096,
                           "current_snapshot":"active_snap",
                           "multinode_mounting":false,
                           "snapshot_space_limit":214748365,
                           "slice_size":1073741824,
                           "protection":0,
                           "next_backupid":1,
                           "name":"test-ds-1.server.01.block.1.fa7b93eb-46f5-4830-b664-4428ed4088e9",
                           "next_snapshotid":2,
                           "qgroupid":159,
                           "priority":2,
                           "genkey":1597453455638742,
                           "appname":"default",
                           "grpid":159,
                           "replication":1,
                           "vtype":0,
                           "current_snapshotid":1,
                           "compression":0,
                           "appid":1,
                           "resource_poolid":1
                        },
                        "replication":1,
                        "snap_reserved":20,
                        "device":"\/dev\/sdf",
                        "path":"\/dev\/rda",
                        "layout":"round-robin",
                        "volgrp_name":"test-ds-1.server.01.72.1.18e90f5c-d221-4a5b-8fe9-4abc80a84776",
                        "k8s_name":"test-ds-1-server-01-block-1-fa7b93eb"
                     }
                  ],
                  "id":79,
                  "utime":1597453464,
                  "host_ip":"172.21.27.101",
                  "restart_on_qoscfg":true,
                  "hosttags":{
                     "kubernetes.io\/os":[
                        "linux"
                     ],
                     "robin.io\/robinrpool":[
                        "default"
                     ],
                     "kubernetes.io\/arch":[
                        "amd64"
                     ]
                  },
                  "network":[
                     {
                        "name":"robin-default",
                        "allocated_ip":"172.21.27.101",
                        "allocated_names":[
                           "eth0"
                        ],
                        "allocated_by":"system",
                        "interfaces":1,
                        "ippool":"robin-default",
                        "driver":"calico",
                        "allocated_prefix":16,
                        "allocated_netmask":"255.255.0.0",
                        "subnet":"172.21.0.0"
                     }
                  ],
                  "bundle_object_id":"64495e524cbc9f133d4b92bcc04e1f94",
                  "enable_metrics":true,
                  "bundleid":7,
                  "appname":"test-ds-1",
                  "allocated":{
                     "zonename":"default",
                     "nodeid":1,
                     "zoneid":1597147518,
                     "nodename":"cscale-82-140"
                  },
                  "restart_num":15,
                  "volume_groups":[
                     {
                        "volumes":[
                           "test-ds-1.server.01.data.1.e5506da8-8c25-460d-926b-146ab4b2c9c8"
                        ],
                        "layout":"round-robin",
                        "media":"HDD",
                        "replicas":1,
                        "rpoolid":1,
                        "device_sets":[
                           {
                              "name":"test-ds-1.server.01.72.1.100e29ae-e508-4f21-a253-e3c912fcc242.0.b93bfd54-808f-4839-abf4-c56143f05737",
                              "devices":[
                                 {
                                    "max_throughput_intensive_vols_per_disk":1,
                                    "max_latency_sensitive_vols_per_disk":2,
                                    "tags":{

                                    },
                                    "hostname":"cscale-82-140.robinsystems.com",
                                    "score":96,
                                    "allocated_slices":2,
                                    "reattachable":0,
                                    "stormgr_id":2,
                                    "protected":0,
                                    "slices":77,
                                    "max_volumes_per_disk":10,
                                    "aslices":5,
                                    "psize":107374182400,
                                    "write_unit":4096,
                                    "type":"HDD",
                                    "devpath":"\/dev\/disk\/by-id\/scsi-3600224804c48fd7e16c608dea0919064",
                                    "wwn":"0x600224804c48fd7e16c608dea0919064",
                                    "pused":167772160,
                                    "host":"cscale-82-140.robinsystems.com",
                                    "capacity":107374182400,
                                    "state":"READY",
                                    "role":"Storage"
                                 }
                              ],
                              "stormgr_id":234
                           }
                        ],
                        "name":"test-ds-1.server.01.72.1.100e29ae-e508-4f21-a253-e3c912fcc242",
                        "stormgr_id":158
                     },
                     {
                        "volumes":[
                           "test-ds-1.server.01.block.1.fa7b93eb-46f5-4830-b664-4428ed4088e9"
                        ],
                        "layout":"round-robin",
                        "media":"HDD",
                        "replicas":1,
                        "rpoolid":1,
                        "device_sets":[
                           {
                              "name":"test-ds-1.server.01.72.1.18e90f5c-d221-4a5b-8fe9-4abc80a84776.0.2eb1b314-7f19-4cb8-8627-d652544194d9",
                              "devices":[
                                 {
                                    "max_throughput_intensive_vols_per_disk":1,
                                    "max_latency_sensitive_vols_per_disk":2,
                                    "tags":{

                                    },
                                    "hostname":"cscale-82-140.robinsystems.com",
                                    "score":96,
                                    "allocated_slices":2,
                                    "reattachable":0,
                                    "stormgr_id":2,
                                    "protected":0,
                                    "slices":77,
                                    "max_volumes_per_disk":10,
                                    "aslices":5,
                                    "psize":107374182400,
                                    "write_unit":4096,
                                    "type":"HDD",
                                    "devpath":"\/dev\/disk\/by-id\/scsi-3600224804c48fd7e16c608dea0919064",
                                    "wwn":"0x600224804c48fd7e16c608dea0919064",
                                    "pused":167772160,
                                    "host":"cscale-82-140.robinsystems.com",
                                    "capacity":107374182400,
                                    "state":"READY",
                                    "role":"Storage"
                                 }
                              ],
                              "stormgr_id":235
                           }
                        ],
                        "name":"test-ds-1.server.01.72.1.18e90f5c-d221-4a5b-8fe9-4abc80a84776",
                        "stormgr_id":159
                     }
                  ],
                  "rpoolid":1,
                  "sidecar_info":{
                     "mem":0,
                     "cpu":0,
                     "containers":[

                     ],
                     "hugepages_1g":0,
                     "hugepages_2m":0,
                     "gpu":0
                  },
                  "role":"server",
                  "vnodehooks":{
                     "postcreate":"bash postcreate.sh"
                  },
                  "engine":"docker",
                  "desired_status":"ONLINE",
                  "allocated_host_type":"physical",
                  "state":"STARTED",
                  "name":"test-ds-1.server.01",
                  "enable_hooklogs":true,
                  "allocated_host_public_hostname":"cscale-82-140.robinsystems.com",
                  "pod_name":"test-ds-1-server-01",
                  "jobid":1887,
                  "cpu":{
                     "min":0,
                     "max":1,
                     "reserve":false
                  },
                  "role_name":"server",
                  "vnodeid":79,
                  "allocated_host_public_ip":"10.9.82.140",
                  "bundle_path":"\/usr\/local\/robin\/collections\/file-collection-1597122699552\/1597452431325\/k8s-test-10.0",
                  "root_fs":"\/usr\/local\/robin\/instances\/test-ds-1-server-01.t001-u000003.svc.cluster.local",
                  "mem":{
                     "size":209715200,
                     "hugepages_1g":0,
                     "hugepages_2m":0
                  },
                  "image":{
                     "name":"robinsys\/centos",
                     "engine":"docker",
                     "registry_hostname":"",
                     "version":"7",
                     "registry_port":"",
                     "entrypoint":"entry.sh",
                     "init_mode":false
                  },
                  "env":{
                     "DOCKER_OPTS":{
                        "value":"-v \/sys\/fs\/cgroup:\/sys\/fs\/cgroup --cap-add=SYS_ADMIN",
                        "type":"text"
                     },
                     "ROOT_PASSWORD":{
                        "value":"",
                        "type":"password"
                     },
                     "allocated":{
                        "ROBINHOST":"cscale-82-140.robinsystems.com",
                        "DOCKER_OPTS":"-v \/sys\/fs\/cgroup:\/sys\/fs\/cgroup --cap-add=SYS_ADMIN",
                        "ROBINHOST_TAG_KUBERNETES.IO-ARCH":"amd64",
                        "ENABLE_SSH":true,
                        "ROBINHOST_TAG_KUBERNETES.IO-OS":"linux",
                        "ROBINHOST_TAG_ROBINRPOOL":"default",
                        "POD_NAME":"test-ds-1-server-01",
                        "POD_NS":"t001-u000003",
                        "ROOT_PASSWORD":"",
                        "K8S_NODE":"cscale-82-140"
                     },
                     "ENABLE_SSH":{
                        "value":true,
                        "type":"boolean"
                     }
                  },
                  "ctime":1597453464,
                  "service_uids":[

                  ],
                  "calico_inuse":true,
                  "gpu":{
                     "min":0,
                     "max":0
                  }
               }
            ],
            "image":{
               "name":"robinsys\/centos",
               "engine":"docker",
               "registry_hostname":"",
               "version":"7",
               "registry_port":"",
               "entrypoint":"entry.sh",
               "init_mode":false
            },
            "display_name":"server",
            "qgroups":{
               "data":{
                  "wr_weight":1,
                  "wr_min_window":500,
                  "rd_min_window":500,
                  "enabled":false,
                  "rd_max_iops":2000000,
                  "wr_min_iops":0,
                  "wr_max_iops":2000000,
                  "priority":1,
                  "rd_weight":1,
                  "rd_min_iops":0
               },
               "block":{
                  "wr_weight":1,
                  "wr_min_window":500,
                  "rd_min_window":500,
                  "enabled":false,
                  "rd_max_iops":2000000,
                  "wr_min_iops":0,
                  "wr_max_iops":2000000,
                  "priority":1,
                  "rd_weight":1,
                  "rd_min_iops":0
               }
            },
            "restart_on_qoscfg":true
         }
      ],
      "from_template":null,
      "bundle_object_id":"64495e524cbc9f133d4b92bcc04e1f94",
      "apphooks":{
         "postdestroy":"python3 postdestroy.py",
         "allocated":{
            "postdestroy":"python3 postdestroy.py",
            "postcreate":"python3 postcreate.py",
            "precreate":"python3 precreate.py"
         },
         "postcreate":"python3 postcreate.py",
         "precreate":"python3 precreate.py"
      },
      "bundleid":7,
      "snapshot":"enabled",
      "id":46,
      "bundle_path":"\/usr\/local\/robin\/collections\/file-collection-1597122699552\/1597452431325\/k8s-test-10.0",
      "robin_version":"5.3.1-182",
      "restart_num":15,
      "clone":"enabled",
      "version":"7",
      "namespace":"t001-u000003",
      "rpool":"default",
      "rpoolid":1,
      "username":"robin",
      "tenant":"Administrators",
      "app_ns":"t001-u000003"
   },
   "jobid":1891
}

10.9. List all Applications

The following command will list all applications created or registered with Robin CNS:

# robin app list --app-kind <app_kind>
                 --app-types <app_type_list>

--app-kind <app_kind>

Filter by application kind (valid choices are ‘robin’, ‘helm’, and ‘flexapp’)

--app-types <app_types>

Filter by application type (valid choices are’MASTER’ and ‘CLONE’)

Example 1 (Listing all Applications):

# robin app list

Helm/Flex Apps:

+-----------+---------+-------------+--------------+--------------+-----------+---------+
| Name      | Type    | State       | Owner/Tenant | Namespace    | Snapshots | Backups |
+-----------+---------+-------------+--------------+--------------+-----------+---------+
| mysql1    | helm    | ONLINE      | admin1/t1    | robinapps | 1         | 1       |
| mysql-hb1 | helm    | ONLINE      | admin1/t1    | robinapps | 0         | 0       |
| mysql2    | helm    | ONLINE      | admin1/t1    | robinapps | 0         | 0       |
| mysql1-b1 | flexapp | INITIALIZED | admin1/t1    | robinapps | 0         | 0       |
+-----------+---------+-------------+--------------+--------------+-----------+---------+

Returns information on all applications within a cluster including details on their statuses (from Robin’s perspective), resource consumption, and their owners.

End Point: /api/v6/robin_server/appsview

Method: GET

URL Parameters:

  • atype=[MASTER,CLONE] : Utilizing this parameter filters the results by the type specified. Valid values include MASTER and CLONE.

  • akind=[robin,helm,flexapp] : Utilizing this parameter filters the results by the kind specified. Valid values include robin, helm and flexapp.

Data Parameters: None

Port: RCM Port (default value is 29442)

Headers:

  • Authorization: <auth_token> : Authorization token to identify which user is sending the request. The token can be acquired from the login API.

Success Response Code: 200

Error Response Code: 500 (Internal Server Error)

Example Response:

Output
{
   "robin":{
      "tenants":[
         {
            "name":"Administrators",
            "id":1
         }
      ],
      "rpools":[
         {
            "name":"default",
            "id":1
         }
      ],
      "zones":[
         {
            "zoneid":1597969746,
            "name":"default",
            "id":1
         }
      ],
      "vnodes":[
         {
            "nodeid":1,
            "mem":4194304,
            "userid":3,
            "zoneid":null,
            "cpu":1,
            "role":"dsbundle",
            "gpu":0,
            "hugepages_1g":0,
            "utime":1598343982,
            "hugepages_2m":0,
            "hostname":"test-app-new-dsbundle-01.t001-u000003.svc.cluster.local",
            "name":"test-app-new.dsbundle.01",
            "status":"ONLINE",
            "pod_name":"test-app-new-dsbundle-01",
            "appid":12,
            "engine":"docker",
            "tenantid":1,
            "state":"STARTED",
            "id":12,
            "desired_status":"ONLINE",
            "pod_ns":"t001-u000003"
         },
         {
            "nodeid":1,
            "mem":1283457024,
            "userid":3,
            "zoneid":null,
            "cpu":1,
            "role":"nginx",
            "gpu":0,
            "hugepages_1g":0,
            "utime":1598453564,
            "hugepages_2m":0,
            "hostname":"demo-nginx-01.t001-u000003.svc.cluster.local",
            "name":"demo.nginx.01",
            "status":"ONLINE",
            "pod_name":"demo-nginx-01",
            "appid":13,
            "engine":"docker",
            "tenantid":1,
            "state":"STARTED",
            "id":13,
            "desired_status":"ONLINE",
            "pod_ns":"t001-u000003"
         }
      ],
      "users":[
         {
            "email":null,
            "tenantid":1,
            "firstname":"Robin",
            "id":3,
            "username":"robin",
            "lastname":"Systems"
         }
      ],
      "nodes":[
         {
            "rpoolid":1,
            "memory_used":0,
            "nvnodes":0,
            "k8s_node_name":"cscale-82-140",
            "zoneid":1,
            "cpu":40,
            "mem":33555701760,
            "mem_for_storage":1073741824,
            "cpu_prov_factor":10,
            "name":"cscale-82-140.robinsystems.com",
            "cpu_cores_present":40,
            "state":"ONLINE",
            "id":1,
            "cores_used":0,
            "services":"{\"update_time\":1598470070.8638851643,\"services\":{\"stormgr-server\":{\"ActiveState\":\"active\",\"Type\":\"simple\",\"ExecMainStartTimestamp\":\"2020-08-20 10:29:43.555551\",\"MainPID\":2275,\"Id\":\"stormgr-server\"},\"consul-server\":{\"ActiveState\":\"active\",\"Type\":\"simple\",\"ExecMainStartTimestamp\":\"2020-08-20 10:28:49.778591\",\"MainPID\":566,\"Id\":\"consul-server\"},\"consul_members\":[{\"Port\":29460,\"Status\":1,\"DelegateMax\":5,\"ProtocolMin\":1,\"Tags\":{\"segment\":\"\",\"bootstrap\":\"1\",\"vsn_min\":\"2\",\"build\":\"0.9.4:40f243a+\",\"vsn_max\":\"3\",\"vsn\":\"2\",\"raft_vsn\":\"2\",\"role\":\"consul\",\"dc\":\"consul\",\"id\":\"9d550700-9fac-4de6-b6bc-1b957e82bda9\",\"wan_join_port\":\"29461\",\"port\":\"29459\"},\"Name\":\"cscale-82-140.robinsystems.com\",\"DelegateMin\":2,\"ProtocolCur\":2,\"DelegateCur\":4,\"Addr\":\"10.9.82.140\",\"ProtocolMax\":5}],\"robin-auth-server\":{\"ActiveState\":\"active\",\"Type\":\"simple\",\"ExecMainStartTimestamp\":\"2020-08-20 10:29:10.587576\",\"MainPID\":1007,\"Id\":\"robin-auth-server\"},\"robin-node-monitor\":{\"ActiveState\":\"active\",\"Type\":\"simple\",\"ExecMainStartTimestamp\":\"2020-08-20 10:29:31.387560\",\"MainPID\":1245,\"Id\":\"robin-node-monitor\"},\"robin-watchdog\":{\"ActiveState\":\"active\",\"Type\":\"simple\",\"ExecMainStartTimestamp\":\"2020-08-20 10:28:54.388588\",\"MainPID\":867,\"Id\":\"robin-watchdog\"},\"sherlock-server\":{\"ActiveState\":\"inactive\",\"Type\":\"simple\",\"ExecMainStartTimestamp\":0,\"MainPID\":0,\"Id\":\"sherlock-server\"},\"httpd\":{\"ActiveState\":\"active\",\"Type\":\"simple\",\"ExecMainStartTimestamp\":\"2020-08-20 10:29:46.799549\",\"MainPID\":2590,\"Id\":\"httpd\"},\"robin-file-server\":{\"ActiveState\":\"active\",\"Type\":\"simple\",\"ExecMainStartTimestamp\":\"2020-08-20 10:29:15.559572\",\"MainPID\":1074,\"Id\":\"robin-file-server\"},\"robin-event-server\":{\"ActiveState\":\"active\",\"Type\":\"simple\",\"ExecMainStartTimestamp\":\"2020-08-20 10:29:15.088572\",\"MainPID\":1041,\"Id\":\"robin-event-server\"},\"consul-client\":{\"ActiveState\":\"inactive\",\"Type\":\"simple\",\"ExecMainStartTimestamp\":0,\"MainPID\":0,\"Id\":\"consul-client\"},\"gui-cli\":{\"ActiveState\":\"active\",\"Type\":\"simple\",\"ExecMainStartTimestamp\":\"2020-08-20 10:29:46.964548\",\"MainPID\":2622,\"Id\":\"gui-cli\"},\"robin-agent\":{\"ActiveState\":\"active\",\"Type\":\"simple\",\"ExecMainStartTimestamp\":\"2020-08-20 10:29:38.987554\",\"MainPID\":1716,\"Id\":\"robin-agent\"},\"robin-server\":{\"ActiveState\":\"active\",\"Type\":\"simple\",\"ExecMainStartTimestamp\":\"2020-08-26 12:27:39.201277\",\"MainPID\":15116,\"Id\":\"robin-server\"},\"iomgr-server\":{\"ActiveState\":\"active\",\"Type\":\"simple\",\"ExecMainStartTimestamp\":\"2020-08-20 12:51:14.290049\",\"MainPID\":29172,\"Id\":\"iomgr-server\"},\"monitor-server\":{\"ActiveState\":\"active\",\"Type\":\"simple\",\"ExecMainStartTimestamp\":\"2020-08-20 10:29:47.114548\",\"MainPID\":2662,\"Id\":\"monitor-server\"},\"postgresql-9.6\":{\"ActiveState\":\"active\",\"Type\":\"simple\",\"ExecMainStartTimestamp\":\"2020-08-20 10:28:52.396589\",\"MainPID\":662,\"Id\":\"postgresql-9.6\"},\"consul_dns\":true}}"
         }
      ],
      "bundles":[
         {
            "version":"1.0",
            "name":"nginx",
            "share_with_all_tenants":false,
            "tenantid":1,
            "userid":3,
            "zoneid":1,
            "limitperbundle":0,
            "id":1
         },
         {
            "version":"1.0",
            "name":"tolerations",
            "share_with_all_tenants":false,
            "tenantid":1,
            "userid":3,
            "zoneid":1,
            "limitperbundle":0,
            "id":2
         },
         {
            "version":"1.0",
            "name":"dsbundle",
            "share_with_all_tenants":false,
            "tenantid":1,
            "userid":3,
            "zoneid":1,
            "limitperbundle":0,
            "id":3
         },
         {
            "version":"2.0",
            "name":"dsbundle",
            "share_with_all_tenants":false,
            "tenantid":1,
            "userid":3,
            "zoneid":1,
            "limitperbundle":0,
            "id":4
         },
         {
            "version":"3.0",
            "name":"dsbundle",
            "share_with_all_tenants":false,
            "tenantid":1,
            "userid":3,
            "zoneid":1,
            "limitperbundle":0,
            "id":5
         },
         {
            "version":"4.0",
            "name":"dsbundle",
            "share_with_all_tenants":false,
            "tenantid":1,
            "userid":3,
            "zoneid":1,
            "limitperbundle":0,
            "id":6
         },
         {
            "version":"10.0",
            "name":"dsbundle",
            "share_with_all_tenants":false,
            "tenantid":1,
            "userid":3,
            "zoneid":1,
            "limitperbundle":0,
            "id":7
         },
         {
            "version":"11.0",
            "name":"dsbundle",
            "share_with_all_tenants":false,
            "tenantid":1,
            "userid":3,
            "zoneid":1,
            "limitperbundle":0,
            "id":8
         },
         {
            "version":"12.0",
            "name":"dsbundle",
            "share_with_all_tenants":false,
            "tenantid":1,
            "userid":3,
            "zoneid":1,
            "limitperbundle":0,
            "id":9
         },
         {
            "version":"15.0",
            "name":"dsbundle",
            "share_with_all_tenants":false,
            "tenantid":1,
            "userid":3,
            "zoneid":1,
            "limitperbundle":0,
            "id":10
         },
         {
            "version":"new",
            "name":"dsbundle",
            "share_with_all_tenants":false,
            "tenantid":1,
            "userid":3,
            "zoneid":1,
            "limitperbundle":0,
            "id":11
         },
         {
            "version":"20.0",
            "name":"dsbundle",
            "share_with_all_tenants":false,
            "tenantid":1,
            "userid":3,
            "zoneid":1,
            "limitperbundle":0,
            "id":12
         }
      ],
      "apps":[
         {
            "rpoolid":1,
            "nvnodes":1,
            "zoneid":1,
            "mem":4194304,
            "atype":"MASTER",
            "name":"test-app-new",
            "status":"Ready",
            "hugepages_1g":0,
            "tenantid":1,
            "error":0,
            "utime":1598343982,
            "parentid":null,
            "userid":3,
            "cpu":1,
            "gpu":0,
            "bundleid":12,
            "hugepages_2m":0,
            "health":"Unknown",
            "ctime":1598343982,
            "unique_id":"a54ef254e6ac11eaa97cc972afea67da",
            "state":"ONLINE",
            "id":12,
            "parent_app":""
         },
         {
            "rpoolid":1,
            "nvnodes":1,
            "zoneid":1,
            "mem":1283457024,
            "atype":"MASTER",
            "name":"demo",
            "status":"Ready",
            "hugepages_1g":0,
            "tenantid":1,
            "error":0,
            "utime":1598453574,
            "parentid":null,
            "userid":3,
            "cpu":1,
            "gpu":0,
            "bundleid":1,
            "hugepages_2m":0,
            "health":"Unknown",
            "ctime":1598453564,
            "unique_id":"ba9df9e8e7ab11eaa8012d67016161bd",
            "state":"ONLINE",
            "id":13,
            "parent_app":""
         }
      ]
   },
   "k8s":[
      {
         "backup_schedule":{

         },
         "id":"da5f043ae7d211ea8ed2b5f75df49f21",
         "query":"{\"namespace\":\"t001-u000003\",\"resources\":[],\"selectors\":[],\"apps\":[\"helm\\\/ideal-giraffe\"]}",
         "kind":"helm",
         "tenant":"Administrators",
         "snapshot_schedule":{

         },
         "namespace":"t001-u000003",
         "name":"demo-helm",
         "state":"ONLINE",
         "num_snapshots":0,
         "username":"robin",
         "num_backups":0
      }
   ]
}

10.10. Show information about a specific Application

Issue the following command to get detailed information about a specific application instance:

# robin app info <appname>
                 --storage

app_name

Application instance name

--storage

Print storage statistics associated with the application

Example 1 (Showing information about a HELM app):

# robin app info mysql1

Backups:
Name                              : mysql1
Kind                              : helm
State                             : ONLINE
Number of repos                   : 1
Number of snapshots               : 1
Number of usable backups          : 0
Number of archived/failed backups : 1

Query:
-------
{'apps': ['helm/trendy-crocodile'], 'namespace': 'robinapps', 'resources': [], 'selectors': []}

Repos:
+----------+-----------------------+----------+------------+
| Name     | Bucket                | Path     | Permission |
+----------+-----------------------+----------+------------+
| testrepo | testbucket-1029384756 | dev/tom/ | readwrite  |
+----------+-----------------------+----------+------------+

Snapshots:
+----------------------------------+----------------------------+-------------+--------+----------------------+
| Id                               | Name                       | Description | State  | Creation Time        |
+----------------------------------+----------------------------+-------------+--------+----------------------+
| 327ab8b447b111eaae7f0f55d6e44d6c | mysql1_snapshot-1580863693 | -           | ONLINE | 04 Feb 2020 16:48:19 |
+----------------------------------+----------------------------+-------------+--------+----------------------+

Archived/Failed Backups:
+----------------------------------+--------------------------+-------------+-----------------+----------------------+
| Id                               | Name                     | Description | State           | Creation Time        |
+----------------------------------+--------------------------+-------------+-----------------+----------------------+
| 36b7c9de47b111eaaf8deb154706dccd | mysql1_backup-1580863693 | -           | Deleted locally | 04 Feb 2020 16:48:24 |
+----------------------------------+--------------------------+-------------+-----------------+----------------------+

Returns detailed information about an application, such as the volumes serving as storage, the resource breakdown and status of each container for every role.

End Point: /api/v6/robin_server/apps/<appname>?info=true&details=vnodes

Method: GET

URL Parameters: None

Data Parameters: None

Port: RCM Port (default value is 29442)

Headers:

  • Authorization: <auth_token> : Authorization token to identify which user is sending the request. The token can be acquired from the login API.

Success Response Code: 200

Error Response Code: 500 (Internal Server Error), 404 (Not Found Error), 401 (Unauthorized Error)

Example Response:

Output
{
   "error":0,
   "updates_available":false,
   "disk":2147483648,
   "zoneid":1596601846,
   "bundle_version":"1.5",
   "bundle_name":"RIC",
   "ctime":1596663233,
   "owner":{
      "last_name":"Systems",
      "tenant_id":1,
      "username":"robin",
      "first_name":"Robin",
      "tenant_name":"Administrators",
      "email":null,
      "user_id":3
   },
   "ainstances":[
      {
         "id":6,
         "role":"server",
         "memory":209715200,
         "events":[

         ],
         "vnc_port":null,
         "utime":1596663233,
         "user":"robin",
         "state":"STARTED",
         "name":"test-RIC-1.server.01",
         "ctime":1596663233,
         "public_ips":[

         ],
         "image_format":"UNKNOWN",
         "hugepages_2m":0,
         "storage":[
            {
               "size":1073741824,
               "media":"HDD",
               "state":"ONLINE",
               "name":"test-RIC-1.server.01.data.1.382f1ad5-1294-4e24-8297-9c6025eacfe5",
               "id":"8"
            },
            {
               "size":1073741824,
               "media":"HDD",
               "state":"ONLINE",
               "name":"test-RIC-1.server.01.block.1.1053eaeb-4542-42a5-a173-d69a76703ead",
               "id":"9"
            }
         ],
         "bundle":{
            "pathname":"\/usr\/local\/robin\/collections\/file-collection-1596578146092\/1596663217668\/RIC-1.5",
            "description":"-",
            "tenants":[
               "Administrators"
            ],
            "create_time":"August 05, 2020 14:33:37",
            "content_id":"f972a5725d1bfe2671a79d61856f872a",
            "zoneid":1596601846,
            "share_with_all_tenants":false,
            "user":"robin",
            "type":"ROBIN",
            "name":"RIC",
            "nchildren":0,
            "version":"1.5",
            "file_object_id":1596663217668,
            "bundleid":3,
            "ntemplates":1,
            "tenant":"Administrators",
            "collection_id":1596578146092,
            "napps":1,
            "parent":"",
            "groupid":3
         },
         "image":{
            "version":"",
            "file":"",
            "name":""
         },
         "network_bandwidth":null,
         "app":"test-RIC-1",
         "status":"ONLINE",
         "cpu_cores":1,
         "config":{
            "restart_num":15,
            "service_uids":[

            ],
            "appname":"test-RIC-1",
            "allocated_host":"cscale-82-140.robinsystems.com",
            "allocated_host_public_ip":"10.9.82.140",
            "cpu":{
               "max":1,
               "min":0,
               "reserve":false
            },
            "sidecar_info":{
               "hugepages_1g":0,
               "mem":0,
               "hugepages_2m":0,
               "containers":[

               ],
               "cpu":0,
               "gpu":0
            },
            "id":6,
            "role_name":"server",
            "hosttags":{
               "kubernetes.io\/os":[
                  "linux"
               ],
               "robin.io\/robinrpool":[
                  "default"
               ],
               "kubernetes.io\/arch":[
                  "amd64"
               ]
            },
            "pod_name":"test-ric-1-server-01",
            "role":"server",
            "rpoolid":1,
            "network":[
               {
                  "subnet":"172.21.0.0",
                  "allocated_by":"system",
                  "allocated_ip":"172.21.26.94",
                  "allocated_prefix":16,
                  "allocated_names":[
                     "eth0"
                  ],
                  "interfaces":1,
                  "driver":"calico",
                  "allocated_netmask":"255.255.0.0",
                  "ippool":"robin-default",
                  "name":"robin-default"
               }
            ],
            "storage":[
               {
                  "volgrp_name":"test-RIC-1.server.01.72.1.ea297971-f931-4787-99cc-6782e026b77c",
                  "media":"HDD",
                  "stordriver":{
                     "media":"HDD",
                     "protection":0,
                     "faultdomain":"host",
                     "type":"das"
                  },
                  "workload":0,
                  "type":"data",
                  "snapshot_space_limit":214748365,
                  "faultdomain":"host",
                  "name":"test-RIC-1.server.01.data.1.382f1ad5-1294-4e24-8297-9c6025eacfe5",
                  "blocksize":4096,
                  "layout":"round-robin",
                  "disk_tags":{

                  },
                  "allocated":{
                     "media":72,
                     "volumeid":"8",
                     "priority":2,
                     "genkey":1596663220770472,
                     "grpid":8,
                     "partitions":0,
                     "snapshot_space_limit":214748365,
                     "name":"test-RIC-1.server.01.data.1.382f1ad5-1294-4e24-8297-9c6025eacfe5",
                     "current_snapshot":"active_snap",
                     "params":{

                     },
                     "stordriver":{
                        "media":"HDD",
                        "protection":0,
                        "faultdomain":"host",
                        "type":"das"
                     },
                     "next_backupid":1,
                     "appname":"default",
                     "vtype":0,
                     "resource_poolid":1,
                     "current_snapshotid":1,
                     "block_size":4096,
                     "size":1073741824,
                     "replication":1,
                     "multinode_mounting":false,
                     "appid":1,
                     "next_snapshotid":2,
                     "protection":0,
                     "compression":0,
                     "slice_size":1073741824,
                     "qgroupid":8
                  },
                  "pvcpolicy":"create",
                  "fstype":"ext4",
                  "snap_reserved":20,
                  "size":1073741824,
                  "lvm_vol_count":"0",
                  "lvm_type":"None",
                  "encryption":"none",
                  "protection":0,
                  "compression":"disabled",
                  "vol_ns":"t001-u000003",
                  "replication":1,
                  "path":"\/data",
                  "k8s_name":"test-ric-1-server-01-data-1-382f1ad5"
               },
               {
                  "volgrp_name":"test-RIC-1.server.01.72.1.1e483fd0-2d5c-434c-aef0-91a87796977a",
                  "media":"HDD",
                  "stordriver":{
                     "media":"HDD",
                     "protection":0,
                     "faultdomain":"host",
                     "type":"das"
                  },
                  "workload":0,
                  "type":"block",
                  "snapshot_space_limit":214748365,
                  "faultdomain":"host",
                  "name":"test-RIC-1.server.01.block.1.1053eaeb-4542-42a5-a173-d69a76703ead",
                  "blocksize":4096,
                  "layout":"round-robin",
                  "disk_tags":{

                  },
                  "allocated":{
                     "media":72,
                     "volumeid":"9",
                     "priority":2,
                     "genkey":1596663220787432,
                     "grpid":9,
                     "partitions":0,
                     "snapshot_space_limit":214748365,
                     "name":"test-RIC-1.server.01.block.1.1053eaeb-4542-42a5-a173-d69a76703ead",
                     "current_snapshot":"active_snap",
                     "params":{

                     },
                     "stordriver":{
                        "media":"HDD",
                        "protection":0,
                        "faultdomain":"host",
                        "type":"das"
                     },
                     "next_backupid":1,
                     "appname":"default",
                     "vtype":0,
                     "resource_poolid":1,
                     "current_snapshotid":1,
                     "block_size":4096,
                     "size":1073741824,
                     "replication":1,
                     "multinode_mounting":false,
                     "appid":1,
                     "next_snapshotid":2,
                     "protection":0,
                     "compression":0,
                     "slice_size":1073741824,
                     "qgroupid":9
                  },
                  "pvcpolicy":"create",
                  "fstype":"raw",
                  "snap_reserved":20,
                  "size":1073741824,
                  "replication":1,
                  "lvm_type":"None",
                  "encryption":"none",
                  "protection":0,
                  "compression":"disabled",
                  "vol_ns":"t001-u000003",
                  "lvm_vol_count":"0",
                  "path":"\/dev\/rda",
                  "k8s_name":"test-ric-1-server-01-block-1-1053eaeb"
               }
            ],
            "cm_keys":[
               "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDgHRR3k5onnh+hjqpoW\/oLkr37GOs2f8FQVDJUHHrDeB+\/cn9c\/nez4lu9J0FkCe+mQwhnuiCicunZEjVZOWpIvjxblbw6Lh7ZkN+o5mOkcxCayrp3fDFnR1PerJJhRPnJU60zxFYbAGPrQtCywQ+b7J9hLtNaqCBf9eAwVWiLSEcFs0SkrjXjFjXOTCaq8b45AWSYc6ZxhzMsFTkTF3C37rTmEGIijmDvUbq1HRGXtQ2YZrlo\/yjJqn8wk8E+cw+Sh\/PEsudaVzoZRqyQ\/lsWBt\/+0nFON8pYttyXPZjKhuGDB5QNtUZ4kgvzDfr1TF1XEXHfo2PdsswRkQ4rU8bF root@cscale-82-140"
            ],
            "env":{
               "ENABLE_SSH":{
                  "value":true,
                  "type":"boolean"
               },
               "ROOT_PASSWORD":{
                  "value":"",
                  "type":"password"
               },
               "allocated":{
                  "K8S_NODE":"cscale-82-140",
                  "ROBINHOST":"cscale-82-140.robinsystems.com",
                  "POD_NAME":"test-ric-1-server-01",
                  "ROOT_PASSWORD":"",
                  "ENABLE_SSH":true,
                  "ROBINHOST_TAG_ROBINRPOOL":"default",
                  "ROBINHOST_TAG_KUBERNETES.IO-ARCH":"amd64",
                  "ROBINHOST_TAG_KUBERNETES.IO-OS":"linux",
                  "POD_NS":"t001-u000003",
                  "DOCKER_OPTS":"-v \/sys\/fs\/cgroup:\/sys\/fs\/cgroup --cap-add=SYS_ADMIN"
               },
               "DOCKER_OPTS":{
                  "value":"-v \/sys\/fs\/cgroup:\/sys\/fs\/cgroup --cap-add=SYS_ADMIN",
                  "type":"text"
               }
            },
            "appid":6,
            "root_fs":"\/usr\/local\/robin\/instances\/test-ric-1-server-01.t001-u000003.svc.cluster.local",
            "enable_hooklogs":true,
            "bundle_object_id":"f972a5725d1bfe2671a79d61856f872a",
            "numa_allocations":{
               "0":{
                  "hugepages_1g_used":0,
                  "hugepages_2m_used":0,
                  "gpu_used":0,
                  "isol_shared_cores_used":0,
                  "non_isol_cores_used":1,
                  "mem_used":209715200,
                  "isol_dedicated_cores_used":0
               }
            },
            "utime":1596663233,
            "volume_groups":[
               {
                  "layout":"round-robin",
                  "volumes":[
                     "test-RIC-1.server.01.data.1.382f1ad5-1294-4e24-8297-9c6025eacfe5"
                  ],
                  "media":"HDD",
                  "device_sets":[
                     {
                        "devices":[
                           {
                              "tags":{

                              },
                              "pused":1107296256,
                              "allocated_slices":2,
                              "type":"HDD",
                              "state":"READY",
                              "aslices":29,
                              "slices":77,
                              "stormgr_id":1,
                              "max_throughput_intensive_vols_per_disk":1,
                              "write_unit":4096,
                              "host":"cscale-82-140.robinsystems.com",
                              "role":"Storage",
                              "protected":0,
                              "devpath":"\/dev\/disk\/by-id\/scsi-3600224804c48fd7e16c608dea0919064",
                              "reattachable":0,
                              "score":84,
                              "psize":107374182400,
                              "max_volumes_per_disk":10,
                              "wwn":"0x600224804c48fd7e16c608dea0919064",
                              "capacity":107374182400,
                              "hostname":"cscale-82-140.robinsystems.com",
                              "max_latency_sensitive_vols_per_disk":2
                           }
                        ],
                        "name":"test-RIC-1.server.01.72.1.ea297971-f931-4787-99cc-6782e026b77c.0.1e8feb41-fd42-4409-b8c1-751331febdc1",
                        "stormgr_id":8
                     }
                  ],
                  "rpoolid":1,
                  "name":"test-RIC-1.server.01.72.1.ea297971-f931-4787-99cc-6782e026b77c",
                  "replicas":1,
                  "stormgr_id":8
               },
               {
                  "layout":"round-robin",
                  "volumes":[
                     "test-RIC-1.server.01.block.1.1053eaeb-4542-42a5-a173-d69a76703ead"
                  ],
                  "media":"HDD",
                  "device_sets":[
                     {
                        "devices":[
                           {
                              "tags":{

                              },
                              "pused":1107296256,
                              "allocated_slices":2,
                              "type":"HDD",
                              "state":"READY",
                              "aslices":29,
                              "slices":77,
                              "stormgr_id":1,
                              "max_throughput_intensive_vols_per_disk":1,
                              "write_unit":4096,
                              "host":"cscale-82-140.robinsystems.com",
                              "role":"Storage",
                              "protected":0,
                              "devpath":"\/dev\/disk\/by-id\/scsi-3600224804c48fd7e16c608dea0919064",
                              "reattachable":0,
                              "score":84,
                              "psize":107374182400,
                              "max_volumes_per_disk":10,
                              "wwn":"0x600224804c48fd7e16c608dea0919064",
                              "capacity":107374182400,
                              "hostname":"cscale-82-140.robinsystems.com",
                              "max_latency_sensitive_vols_per_disk":2
                           }
                        ],
                        "name":"test-RIC-1.server.01.72.1.1e483fd0-2d5c-434c-aef0-91a87796977a.0.5bf728c4-ea26-4e0f-82d7-c584fcf0bd9a",
                        "stormgr_id":9
                     }
                  ],
                  "rpoolid":1,
                  "name":"test-RIC-1.server.01.72.1.1e483fd0-2d5c-434c-aef0-91a87796977a",
                  "replicas":1,
                  "stormgr_id":9
               }
            ],
            "bundleid":3,
            "vnodehooks":{
               "postcreate":"bash postcreate.sh"
            },
            "mem":{
               "size":209715200,
               "hugepages_1g":0,
               "hugepages_2m":0
            },
            "enable_portmapping":true,
            "state":"STARTED",
            "name":"test-RIC-1.server.01",
            "k8s_provider":"robin",
            "ctime":1596663233,
            "vnodeid":6,
            "allocated":{
               "zoneid":1596601846,
               "nodename":"cscale-82-140",
               "nodeid":1,
               "zonename":"default"
            },
            "image":{
               "init_mode":false,
               "version":"7",
               "registry_hostname":"",
               "entrypoint":"entry.sh",
               "name":"robinsys\/centos",
               "engine":"docker",
               "registry_port":""
            },
            "calico_inuse":true,
            "enable_metrics":true,
            "bundle_path":"\/usr\/local\/robin\/collections\/file-collection-1596578146092\/1596663217668\/RIC-1.5",
            "vnodehookargs":{
               "postcreate":[

               ]
            },
            "pod_ns":"t001-u000003",
            "allocated_host_public_hostname":"cscale-82-140.robinsystems.com",
            "allocated_host_type":"physical",
            "hostname":"test-ric-1-server-01.t001-u000003.svc.cluster.local",
            "host_ip":"172.21.26.94",
            "restart_on_qoscfg":true,
            "engine":"docker",
            "gpu":{
               "max":0,
               "min":0
            }
         },
         "physical_host":{
            "compute_status":"READY",
            "status":1,
            "hostname":"cscale-82-140.robinsystems.com",
            "compute_state":"ONLINE",
            "public_hostname":"cscale-82-140.robinsystems.com",
            "compute_services":[
               [
                  "robin-agent",
                  true
               ],
               [
                  "monitor-server",
                  true
               ],
               [
                  "iomgr-server",
                  true
               ]
            ],
            "state":"ONLINE",
            "public_ip":"10.9.82.140"
         },
         "gpu_cores":0,
         "restartpolicy":{
            "restarts_done":0,
            "burst_count":0,
            "burst_start_time":0,
            "burst_interval":600,
            "id":13,
            "restart_limit":15
         },
         "distribution":{
            "version":"",
            "name":""
         },
         "root_fs":"\/usr\/local\/robin\/instances\/test-ric-1-server-01.t001-u000003.svc.cluster.local",
         "volumes":[
            {
               "size":1073741824,
               "media":"HDD",
               "state":"ONLINE",
               "name":"test-RIC-1.server.01.data.1.382f1ad5-1294-4e24-8297-9c6025eacfe5",
               "id":"8"
            },
            {
               "size":1073741824,
               "media":"HDD",
               "state":"ONLINE",
               "name":"test-RIC-1.server.01.block.1.1053eaeb-4542-42a5-a173-d69a76703ead",
               "id":"9"
            }
         ],
         "capacity":{
            "threshold":85,
            "used":0,
            "total":0,
            "unit":"Bytes"
         },
         "service_ports":null,
         "tenant":"Administrators",
         "hugepages_1g":0,
         "rpool":"default",
         "autopilot":true,
         "desired_status":"ONLINE",
         "ip_addresses":[
            "172.21.26.94\/16"
         ],
         "engine":"docker",
         "hostname":"test-ric-1-server-01.t001-u000003.svc.cluster.local"
      }
   ],
   "local_avail":true,
   "nbackups":0,
   "id":6,
   "clone":false,
   "unique_id":"549c0ac2d76311eab3c057add9d364f3",
   "parentid":"",
   "status":"Ready",
   "atype":"MASTER",
   "message":"",
   "nsnapshots":0,
   "utime":1596663233,
   "rpool":"default",
   "autopilot":true,
   "snapshots":[

   ],
   "user_shares":[

   ],
   "mem":209715200,
   "backups":[

   ],
   "state":"ONLINE",
   "name":"test-RIC-1",
   "cpu":1,
   "restore_status":{

   },
   "appinfo":{

   },
   "nvnodes":1,
   "resources":[

   ],
   "health":"Unknown",
   "config":{
      "content_id":"f972a5725d1bfe2671a79d61856f872a",
      "from_template":null,
      "enable_metrics":true,
      "kind":"ROBIN",
      "id":6,
      "name":"test-RIC-1",
      "auto_relocate":true,
      "version":"7",
      "zoneid":1596601846,
      "app_ns":"t001-u000003",
      "namespace":"t001-u000003",
      "tenant":"Administrators",
      "clone":"enabled",
      "pvcpolicy":"create",
      "planid":6,
      "restart_num":15,
      "rpoolid":1,
      "roles":[
         {
            "qgroups":{
               "block":{
                  "rd_weight":1,
                  "rd_max_iops":2000000,
                  "priority":1,
                  "wr_min_iops":0,
                  "wr_min_window":500,
                  "rd_min_iops":0,
                  "rd_min_window":500,
                  "enabled":false,
                  "wr_max_iops":2000000,
                  "wr_weight":1
               },
               "data":{
                  "rd_weight":1,
                  "rd_max_iops":2000000,
                  "priority":1,
                  "wr_min_iops":0,
                  "wr_min_window":500,
                  "rd_min_iops":0,
                  "rd_min_window":500,
                  "enabled":false,
                  "wr_max_iops":2000000,
                  "wr_weight":1
               }
            },
            "vnodes":[
               {
                  "restart_num":15,
                  "service_uids":[

                  ],
                  "appname":"test-RIC-1",
                  "allocated_host":"cscale-82-140.robinsystems.com",
                  "allocated_host_public_ip":"10.9.82.140",
                  "cpu":{
                     "max":1,
                     "min":0,
                     "reserve":false
                  },
                  "sidecar_info":{
                     "hugepages_1g":0,
                     "mem":0,
                     "hugepages_2m":0,
                     "containers":[

                     ],
                     "cpu":0,
                     "gpu":0
                  },
                  "id":6,
                  "role_name":"server",
                  "hosttags":{
                     "kubernetes.io\/os":[
                        "linux"
                     ],
                     "robin.io\/robinrpool":[
                        "default"
                     ],
                     "kubernetes.io\/arch":[
                        "amd64"
                     ]
                  },
                  "pod_name":"test-ric-1-server-01",
                  "role":"server",
                  "rpoolid":1,
                  "status":"ONLINE",
                  "network":[
                     {
                        "subnet":"172.21.0.0",
                        "allocated_by":"system",
                        "allocated_ip":"172.21.26.94",
                        "allocated_prefix":16,
                        "allocated_names":[
                           "eth0"
                        ],
                        "interfaces":1,
                        "driver":"calico",
                        "allocated_netmask":"255.255.0.0",
                        "ippool":"robin-default",
                        "name":"robin-default"
                     }
                  ],
                  "storage":[
                     {
                        "volgrp_name":"test-RIC-1.server.01.72.1.ea297971-f931-4787-99cc-6782e026b77c",
                        "media":"HDD",
                        "stordriver":{
                           "media":"HDD",
                           "protection":0,
                           "faultdomain":"host",
                           "type":"das"
                        },
                        "workload":0,
                        "type":"data",
                        "snapshot_space_limit":214748365,
                        "faultdomain":"host",
                        "name":"test-RIC-1.server.01.data.1.382f1ad5-1294-4e24-8297-9c6025eacfe5",
                        "blocksize":4096,
                        "layout":"round-robin",
                        "disk_tags":{

                        },
                        "allocated":{
                           "media":72,
                           "volumeid":"8",
                           "priority":2,
                           "genkey":1596663220770472,
                           "grpid":8,
                           "partitions":0,
                           "snapshot_space_limit":214748365,
                           "name":"test-RIC-1.server.01.data.1.382f1ad5-1294-4e24-8297-9c6025eacfe5",
                           "current_snapshot":"active_snap",
                           "params":{

                           },
                           "stordriver":{
                              "media":"HDD",
                              "protection":0,
                              "faultdomain":"host",
                              "type":"das"
                           },
                           "next_backupid":1,
                           "appname":"default",
                           "vtype":0,
                           "resource_poolid":1,
                           "current_snapshotid":1,
                           "block_size":4096,
                           "size":1073741824,
                           "replication":1,
                           "multinode_mounting":false,
                           "appid":1,
                           "next_snapshotid":2,
                           "protection":0,
                           "compression":0,
                           "slice_size":1073741824,
                           "qgroupid":8
                        },
                        "pvcpolicy":"create",
                        "fstype":"ext4",
                        "snap_reserved":20,
                        "size":1073741824,
                        "lvm_vol_count":"0",
                        "lvm_type":"None",
                        "encryption":"none",
                        "protection":0,
                        "compression":"disabled",
                        "vol_ns":"t001-u000003",
                        "replication":1,
                        "path":"\/data",
                        "k8s_name":"test-ric-1-server-01-data-1-382f1ad5"
                     },
                     {
                        "volgrp_name":"test-RIC-1.server.01.72.1.1e483fd0-2d5c-434c-aef0-91a87796977a",
                        "media":"HDD",
                        "stordriver":{
                           "media":"HDD",
                           "protection":0,
                           "faultdomain":"host",
                           "type":"das"
                        },
                        "workload":0,
                        "type":"block",
                        "snapshot_space_limit":214748365,
                        "faultdomain":"host",
                        "name":"test-RIC-1.server.01.block.1.1053eaeb-4542-42a5-a173-d69a76703ead",
                        "blocksize":4096,
                        "layout":"round-robin",
                        "disk_tags":{

                        },
                        "allocated":{
                           "media":72,
                           "volumeid":"9",
                           "priority":2,
                           "genkey":1596663220787432,
                           "grpid":9,
                           "partitions":0,
                           "snapshot_space_limit":214748365,
                           "name":"test-RIC-1.server.01.block.1.1053eaeb-4542-42a5-a173-d69a76703ead",
                           "current_snapshot":"active_snap",
                           "params":{

                           },
                           "stordriver":{
                              "media":"HDD",
                              "protection":0,
                              "faultdomain":"host",
                              "type":"das"
                           },
                           "next_backupid":1,
                           "appname":"default",
                           "vtype":0,
                           "resource_poolid":1,
                           "current_snapshotid":1,
                           "block_size":4096,
                           "size":1073741824,
                           "replication":1,
                           "multinode_mounting":false,
                           "appid":1,
                           "next_snapshotid":2,
                           "protection":0,
                           "compression":0,
                           "slice_size":1073741824,
                           "qgroupid":9
                        },
                        "pvcpolicy":"create",
                        "fstype":"raw",
                        "snap_reserved":20,
                        "size":1073741824,
                        "replication":1,
                        "lvm_type":"None",
                        "encryption":"none",
                        "protection":0,
                        "compression":"disabled",
                        "vol_ns":"t001-u000003",
                        "lvm_vol_count":"0",
                        "path":"\/dev\/rda",
                        "k8s_name":"test-ric-1-server-01-block-1-1053eaeb"
                     }
                  ],
                  "cm_keys":[
                     "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDgHRR3k5onnh+hjqpoW\/oLkr37GOs2f8FQVDJUHHrDeB+\/cn9c\/nez4lu9J0FkCe+mQwhnuiCicunZEjVZOWpIvjxblbw6Lh7ZkN+o5mOkcxCayrp3fDFnR1PerJJhRPnJU60zxFYbAGPrQtCywQ+b7J9hLtNaqCBf9eAwVWiLSEcFs0SkrjXjFjXOTCaq8b45AWSYc6ZxhzMsFTkTF3C37rTmEGIijmDvUbq1HRGXtQ2YZrlo\/yjJqn8wk8E+cw+Sh\/PEsudaVzoZRqyQ\/lsWBt\/+0nFON8pYttyXPZjKhuGDB5QNtUZ4kgvzDfr1TF1XEXHfo2PdsswRkQ4rU8bF root@cscale-82-140"
                  ],
                  "env":{
                     "ENABLE_SSH":{
                        "value":true,
                        "type":"boolean"
                     },
                     "ROOT_PASSWORD":{
                        "value":"",
                        "type":"password"
                     },
                     "allocated":{
                        "K8S_NODE":"cscale-82-140",
                        "ROBINHOST":"cscale-82-140.robinsystems.com",
                        "POD_NAME":"test-ric-1-server-01",
                        "ROOT_PASSWORD":"",
                        "ENABLE_SSH":true,
                        "ROBINHOST_TAG_ROBINRPOOL":"default",
                        "ROBINHOST_TAG_KUBERNETES.IO-ARCH":"amd64",
                        "ROBINHOST_TAG_KUBERNETES.IO-OS":"linux",
                        "POD_NS":"t001-u000003",
                        "DOCKER_OPTS":"-v \/sys\/fs\/cgroup:\/sys\/fs\/cgroup --cap-add=SYS_ADMIN"
                     },
                     "DOCKER_OPTS":{
                        "value":"-v \/sys\/fs\/cgroup:\/sys\/fs\/cgroup --cap-add=SYS_ADMIN",
                        "type":"text"
                     }
                  },
                  "appid":6,
                  "root_fs":"\/usr\/local\/robin\/instances\/test-ric-1-server-01.t001-u000003.svc.cluster.local",
                  "enable_hooklogs":true,
                  "bundle_object_id":"f972a5725d1bfe2671a79d61856f872a",
                  "numa_allocations":{
                     "0":{
                        "hugepages_1g_used":0,
                        "hugepages_2m_used":0,
                        "gpu_used":0,
                        "isol_shared_cores_used":0,
                        "non_isol_cores_used":1,
                        "mem_used":209715200,
                        "isol_dedicated_cores_used":0
                     }
                  },
                  "utime":1596663233,
                  "volume_groups":[
                     {
                        "layout":"round-robin",
                        "volumes":[
                           "test-RIC-1.server.01.data.1.382f1ad5-1294-4e24-8297-9c6025eacfe5"
                        ],
                        "media":"HDD",
                        "device_sets":[
                           {
                              "devices":[
                                 {
                                    "tags":{

                                    },
                                    "pused":1107296256,
                                    "allocated_slices":2,
                                    "type":"HDD",
                                    "state":"READY",
                                    "aslices":29,
                                    "slices":77,
                                    "stormgr_id":1,
                                    "max_throughput_intensive_vols_per_disk":1,
                                    "write_unit":4096,
                                    "host":"cscale-82-140.robinsystems.com",
                                    "role":"Storage",
                                    "protected":0,
                                    "devpath":"\/dev\/disk\/by-id\/scsi-3600224804c48fd7e16c608dea0919064",
                                    "reattachable":0,
                                    "score":84,
                                    "psize":107374182400,
                                    "max_volumes_per_disk":10,
                                    "wwn":"0x600224804c48fd7e16c608dea0919064",
                                    "capacity":107374182400,
                                    "hostname":"cscale-82-140.robinsystems.com",
                                    "max_latency_sensitive_vols_per_disk":2
                                 }
                              ],
                              "name":"test-RIC-1.server.01.72.1.ea297971-f931-4787-99cc-6782e026b77c.0.1e8feb41-fd42-4409-b8c1-751331febdc1",
                              "stormgr_id":8
                           }
                        ],
                        "rpoolid":1,
                        "name":"test-RIC-1.server.01.72.1.ea297971-f931-4787-99cc-6782e026b77c",
                        "replicas":1,
                        "stormgr_id":8
                     },
                     {
                        "layout":"round-robin",
                        "volumes":[
                           "test-RIC-1.server.01.block.1.1053eaeb-4542-42a5-a173-d69a76703ead"
                        ],
                        "media":"HDD",
                        "device_sets":[
                           {
                              "devices":[
                                 {
                                    "tags":{

                                    },
                                    "pused":1107296256,
                                    "allocated_slices":2,
                                    "type":"HDD",
                                    "state":"READY",
                                    "aslices":29,
                                    "slices":77,
                                    "stormgr_id":1,
                                    "max_throughput_intensive_vols_per_disk":1,
                                    "write_unit":4096,
                                    "host":"cscale-82-140.robinsystems.com",
                                    "role":"Storage",
                                    "protected":0,
                                    "devpath":"\/dev\/disk\/by-id\/scsi-3600224804c48fd7e16c608dea0919064",
                                    "reattachable":0,
                                    "score":84,
                                    "psize":107374182400,
                                    "max_volumes_per_disk":10,
                                    "wwn":"0x600224804c48fd7e16c608dea0919064",
                                    "capacity":107374182400,
                                    "hostname":"cscale-82-140.robinsystems.com",
                                    "max_latency_sensitive_vols_per_disk":2
                                 }
                              ],
                              "name":"test-RIC-1.server.01.72.1.1e483fd0-2d5c-434c-aef0-91a87796977a.0.5bf728c4-ea26-4e0f-82d7-c584fcf0bd9a",
                              "stormgr_id":9
                           }
                        ],
                        "rpoolid":1,
                        "name":"test-RIC-1.server.01.72.1.1e483fd0-2d5c-434c-aef0-91a87796977a",
                        "replicas":1,
                        "stormgr_id":9
                     }
                  ],
                  "bundleid":3,
                  "vnodehooks":{
                     "postcreate":"bash postcreate.sh"
                  },
                  "mem":{
                     "size":209715200,
                     "hugepages_1g":0,
                     "hugepages_2m":0
                  },
                  "enable_portmapping":true,
                  "state":"STARTED",
                  "name":"test-RIC-1.server.01",
                  "k8s_provider":"robin",
                  "ctime":1596663233,
                  "vnodeid":6,
                  "allocated":{
                     "zoneid":1596601846,
                     "nodename":"cscale-82-140",
                     "nodeid":1,
                     "zonename":"default"
                  },
                  "image":{
                     "init_mode":false,
                     "version":"7",
                     "registry_hostname":"",
                     "entrypoint":"entry.sh",
                     "name":"robinsys\/centos",
                     "engine":"docker",
                     "registry_port":""
                  },
                  "calico_inuse":true,
                  "enable_metrics":true,
                  "bundle_path":"\/usr\/local\/robin\/collections\/file-collection-1596578146092\/1596663217668\/RIC-1.5",
                  "vnodehookargs":{
                     "postcreate":[

                     ]
                  },
                  "pod_ns":"t001-u000003",
                  "allocated_host_public_hostname":"cscale-82-140.robinsystems.com",
                  "allocated_host_type":"physical",
                  "hostname":"test-ric-1-server-01.t001-u000003.svc.cluster.local",
                  "host_ip":"172.21.26.94",
                  "restart_on_qoscfg":true,
                  "engine":"docker",
                  "gpu":{
                     "max":0,
                     "min":0
                  }
               }
            ],
            "name":"server",
            "display_name":"server",
            "restart_on_qoscfg":true,
            "volume_groups":[

            ],
            "image":{
               "init_mode":false,
               "version":"7",
               "registry_hostname":"",
               "entrypoint":"entry.sh",
               "name":"robinsys\/centos",
               "engine":"docker",
               "registry_port":""
            }
         }
      ],
      "bundle_path":"\/usr\/local\/robin\/collections\/file-collection-1596578146092\/1596663217668\/RIC-1.5",
      "username":"robin",
      "robin_version":"5.3.0-171",
      "enable_hooklogs":true,
      "bundle_object_id":"f972a5725d1bfe2671a79d61856f872a",
      "bundleid":3,
      "rpool":"default",
      "snapshot":"enabled"
   },
   "vnodes":[
      "test-RIC-1.server.01"
   ],
   "repos":[

   ],
   "parent_app":"",
   "app_kind":"robin",
   "appcfg_autopilot":true,
   "bundleid":3,
   "backup_state":"Hydrated",
   "storagerepos":[

   ],
   "gpu":0
}

10.11. Application Sharing and the Reasignment of Application Ownership

Each application is assigned to a user and a tenant. The user is the application’s owner (creator) and the tenant is the tenant they were logged into when they created the app. By default, a regular tenant user (a user assigned the user role) can only access and manage applications they own. There are times, however, when it might be desirable for an application to be shared with multiple tenant users. For example, a tenant administrator might want a group of users to share management responsibilities for an application. To accomplish this, the tenant admin can give each user shared access to the app with permission to perform specific administrative tasks, such as starting and stopping the app, creating snapshots and backups, etc. In addition to application sharing, there are also times when the ownership of an application needs to be reassigned from one tenant user to another. For example, if the application’s owner needs to be removed from the tenant.

Applications are multi-object entities consisting of the application control object and one or more instance (vnode) objects. There is a very tight coupling between these objects that requires they all be assigned to the same user and tenant. In addition to the objects making up the application, an application may have one or more snapshots or clones associated with it.

  • A application snapshot contains a point-in-time copy of the application’s data and operational state. Snapshot’s can be used to revert (roll back) an app to a particular point in time, or when creating an application clone.

  • An application clone is an application instance, however it does not exist independently. The volumes allocated for an application clone are shared with the parent app (linked by the sanpshot the clone was created from).

Requiring all application objects be assigned to the same user and tenant ensures that the user (the application’s owner) will be able to access and manage all resources associated with the application. This is especially true when it comes to app deletion. An app cannot be deleted if there are any snapshots or clones associated with it, and the app’s owner will not be able to delete them (or even see them) if they are ownd by another user. Any snapshot or clone created by a user with shared access to an app will be assigned to the same user and tenant as the app. The user creating the snapshot or clone will automatically be given shared access to the objects they created, however, so they can access it.

Note

  • The sharing of applications and the reassignment of their ownership is closely aligned with the sharing of namespaces. Before a user to be given access to an application, they first must be given access to the namespace the application is deployed to. Note that the sharing of a namespace is a separate operation from the sharing of an application.

  • When reassigning ownership of an application, the ownership of all related snapshots and application clones will also be changed.

  • If a user’s shared access to an app is revoked, then shared access to all snapshots and clones associated with that app will also be revoked.

  • An application clone must be deployed in the same namespace the parent is deployed in. Even if it’s possible for applications deployed to different namespaces to share storage volume (from a pure storage point of view), to allow it makes validity checking scenarios very complicated and error prone.

  • A user with shared access to an app will not automatically have access to snapshots and application clones associated with the app. They can be given shared access, however (by a tenantadmin or superadmin user).

  • A user with shared access to an app (and adequate share permissions) will be able to create and manage the snapshots and clones they create.

  • A user with shared access to an app will not be allowed to delete the app (only the app owner, a tenantadmin, or superadmin should be able to do that).

  • Even though there is a relationship between an app and backups crated from that app, the above ownership rule doesn’t apply. That’s because backups can exist independent of the apps they were created from, and even from the cluster they were created on.

10.11.1. Sharing an Application

Run the following command to share an app with one or more users:

# robin app share name [user_list]
                       --operations <operations>
                       --all-tenant-users

name

Application instance name

user_list

Optional comma separated list of users the application will be shared with

--operations <operations>

Comma separated list of operations the users will be allowed to perform on the shared application. To allow all valid operations to be performed, specify ‘ALL_OPERATIONS’ on the command line (default value is ‘view’)

--all-tenant-users

Share app with all tenant users. Note this option is required when no users are explicitly specified

Example:

# robin app share demo robin --wait
Job:  101 Name: ApplicationShare     State: PROCESSED       Error: 0
Job:  101 Name: ApplicationShare     State: COMPLETED       Error: 0

Note

The ability to share an application is subject to Robin Role Based Access Control (RBAC). By default, only Cluster and Tenant Administrators (users assigned the superadmin or tenantadmin role for the specified tenant) have permission to do so. See the section on User Management for details on how Robin RBAC works.

  • Tenant Administrators will only be able to share applications that are bound to their tenant.

  • Applications can only be shared with users who are members of the tenant the application is bound to.

10.11.2. Stop Sharing an Application

Run the following command to stop sharing an app with one or more users:

# robin app unshare name [user_list]
                         --operations <operations>
                         --all-tenant-users

name

Application instance name

user_list

Optional comma separated list of users the application will no longer be shared with

--operations <operations>

Comma separated list of operations the users will no longer be allowed to perform on the shared application. To prevent all all valid operations from being performed, specify ‘ALL_OPERATIONS’ on the command line.

--all-tenant-users

Stop sharing app with all tenant users for specified operations. Note this option is required when no users are explicitly specified

Example:

# robin app unshare demo robin --wait
Job:  102 Name: ApplicationUnshare   State: VALIDATED       Error: 0
Job:  102 Name: ApplicationUnshare   State: COMPLETED       Error: 0

Note

The ability to stop sharing an application is subject to Robin Role Based Access Control (RBAC). By default, only Cluster and Tenant Administrators (users assigned the superadmin or tenantadmin role for the specified tenant) have permission to do so. See the section on User Management for details on how Robin RBAC works.

  • Tenant Administrators will only be able to stop sharing applications that are bound to their tenant.

10.11.3. List Application Shares

Run the following command to list application shares:

# robin app list-shares [username]

username

The username of the user to show application shares for. If a username is not supplied, application shares for all users are shown.

Example:

# robin app list-shares
App Id | App Name | Operation | Users
-------+----------+-----------+-------
1      | demo     | view      | robin

Note

The ability to view application shares is subject to Robin Role Based Access Control (RBAC). By default, only Cluster and Tenant Administrators (users assigned the superadmin or tenantadmin role for the specified tenant) have permission to do so. See the section on User Management for details on how Robin RBAC works.

10.11.4. Reassign Ownership of an Application

Run the following command to reassign ownership of an app to a different tenant user:

# robin app change-owner <app_names> [username]

app_names

Comma separated list of one or more application names

username

The username of the new owner. If a username is not provided then ownership of the app will be reassigned to the current user.

Example:

# robin app change-owner demo user1
Job:   72 Name: ApplicationChangeOwner State: VALIDATED       Error: 0
Job:   72 Name: ApplicationChangeOwner State: COMPLETED       Error: 0

Note

The ability to reassign ownership of an app is subject to Robin Role Based Access Control (RBAC). By default, only Cluster and Tenant Administrators (users assigned the superadmin or tenantadmin role for the specified tenant) have permission to do so. See the section on User Management for details on how Robin RBAC works.

  • Tenant Administrators will only be able to reassign ownership of applications that are bound to their tenant.

  • Ownership of an app can only be reassigned to a user who is a member of the tenant the application is bound to.

Reassigns ownership of an application to a different tenant user.

End Point: /api/v3/robin_server/apps/<app_name>

Method: PUT

URL Parameters: None

Data Parameters:

  • action: change_owner - This mandatory field within the payload specifies that the change owner operation is to be performed.

  • username: <username> - This mandatory field within the payload specifies the name of the user to whom the application’s ownership will be reassigned to.

Port: RCM Port (default value is 29442)

Headers:

  • Authorization: <auth_token> : Authorization token to identify which user is sending the request. The token can be acquired from the login API.

Success Response Code: 202

Error Response Code: 500 (Internal Server Error), 404 (Not Found Error), 401 (Unauthorized Error), 400 (Invalid Api Usage Error)

Example Response:

Output
{
   "plan":{
      "opcode":null,
      "current_user":{
         "session_expires":"2020-09-18T17:25:02",
         "user_id":3,
         "tenant_role":"superadmin",
         "user_contexts":[
            "robin",
            "robin"
         ],
         "username":"robin",
         "user_permissions":{

         },
         "tenant":"Administrators",
         "user_context":"robin",
         "user_capabilities":[
            "AllSuperAdminCapabilities"
         ],
         "ip_addr":"172.17.0.1",
         "namespace":"t001-u000003",
         "tenant_id":1,
         "tenants":[
            "t2",
            "Administrators"
         ]
      },
      "username":"user1",
      "namespace":"t001-u000003",
      "kind":"robin",
      "name":"demo",
      "action":"change_owner",
      "include_children":true
   },
   "jobid":73
}

10.12. Attach an External Storage Repo to an Application

Robin CNS allows entire applications, plus their data to be backed up to an external storage device or service such as AWS S3, Google GCS object stores, etc. Repo management is explained at length here. Issue the following command to attach a repo to an application:

# robin app attach-repo <app_name> <repo_name>

app_name

Application instance name

repo_name

Name of the storage repo

Example:

# robin app attach-repo mysql-c1 testrepo --wait
Job:  115 Name: ApplicationAddRepo   State: VALIDATED       Error: 0
Job:  115 Name: ApplicationAddRepo   State: COMPLETED       Error: 0

Attaches a repo to an application in order to enable backups for it.

End Point: /api/v3/robin_server/apps/<appname>

Method: PUT

URL Parameters: None

Data Parameters:

  • action: add_repo - This mandatory field within the payload specifies that the repo attach operation is to be performed.

  • repo_name: <repo_name> - This mandatory field within the payload specifies the repo to be attached to the application.

  • name: <appname> - This mandatory field within the payload specifies the application to which the aforementioned repo should be attached.

Port: RCM Port (default value is 29442)

Headers:

  • Authorization: <auth_token> : Authorization token to identify which user is sending the request. The token can be acquired from the login API.

Success Response Code: 202

Error Response Code: 500 (Internal Server Error), 404 (Not Found Error), 401 (Unauthorized Error), 400 (Invalid Api Usage Error)

Example Response:

Output
{
   "plan":{
      "action":"add_repo",
      "name":"mysql-jf6s",
      "current_user":{
         "user_context":"robin",
         "tenants":[
            "Administrators"
         ],
         "namespace":"t001-u000003",
         "session_expires":"2020-09-09T00:09:42",
         "tenant_role":"superadmin",
         "tenant":"Administrators",
         "user_permissions":{

         },
         "user_contexts":[
            "robin",
            "robin-k8s-cluster"
         ],
         "user_capabilities":[
            "AllSuperAdminCapabilities"
         ],
         "ip_addr":"172.17.0.1",
         "user_id":3,
         "tenant_id":1,
         "username":"robin"
      },
      "namespace":"t001-u000003",
      "opcode":null,
      "kind":"robin",
      "repo_name":"app-repompsq"
   },
   "jobid":725
}

10.13. Detach an External Storage Repo from an Application

A previously attached storage repo can be detached from an Application using this command:

# robin app detach-repo <app_name> <repo_name>
                                   --purge-in-repo
                                   --yes

app_name

Application instance name

repo_name

Name of the storage repo

--purge-in-repo

Delete all backup copies in repo associated from this cluster

--yes

Do not prompt the user for confirmation

Example:

# robin app detach-repo mysql-c1 testrepo --wait
Job:  116 Name: ApplicationRemoveRepo State: PREPARED        Error: 0
Job:  116 Name: ApplicationRemoveRepo State: COMPLETED       Error: 0

Detaches a previously attached repo from an application.

End Point: /api/v3/robin_server/apps/<appname>

Method: PUT

URL Parameters: None

Data Parameters:

  • action: remove_repo - This mandatory field within the payload specifies that the repo detach operation is to be performed.

  • repo_name: <repo_name> - This mandatory field within the payload specifies the repo to be detached from the application.

  • name: <appname> - This mandatory field within the payload specifies the application from which the aforementioned repo should be detached.

  • purge: true - Utilizing this parameter results in all backups associated with this cluster within the specified repo being deleted.

Port: RCM Port (default value is 29442)

Headers:

  • Authorization: <auth_token> : Authorization token to identify which user is sending the request. The token can be acquired from the login API.

Success Response Code: 202

Error Response Code: 500 (Internal Server Error), 404 (Not Found Error), 401 (Unauthorized Error), 400 (Invalid Api Usage Error)

Example Response:

Output
{
   "plan":{
      "purge":false,
      "namespace":"t001-u000003",
      "current_user":{
         "user_context":"robin",
         "tenants":[
            "Administrators"
         ],
         "namespace":"t001-u000003",
         "session_expires":"2020-09-09T00:09:42",
         "tenant_role":"superadmin",
         "tenant":"Administrators",
         "user_permissions":{

         },
         "user_contexts":[
            "robin",
            "robin-k8s-cluster"
         ],
         "user_capabilities":[
            "AllSuperAdminCapabilities"
         ],
         "ip_addr":"172.17.0.1",
         "user_id":3,
         "tenant_id":1,
         "username":"robin"
      },
      "action":"remove_repo",
      "name":"mysql-jf6s",
      "kind":"robin",
      "opcode":null,
      "repo_name":"app-repompsq"
   },
   "jobid":730
}

10.14. Manage Application Snapshot Schedules

Robin CNS allows configuring a schedule to automatically snapshot applications and set retention policies. The advantage is that an application can always be rolled back to a point in time when it was healthy. The schedule can be set via a JSON file or a CRON string. Issue the following command to set up a snapshot schedule for an app:

# robin app snapshot-schedule <app_name>
                              --snapshot-schedule <schedule>
                              --snapshot-schedule-cron <schedule>
                              --retain <retained_snapshots>
                              --disable
                              --enable

app_name

Application instance name

--snapshot-scheedule <schedule>

Snapshot schedule specified as JSON

--snapshot-scheedule-cron <schedule>

Snapshot schedule specified as CRON string

--retain <retained_snapshots>

Number of snapshots to retain with the specified schedule

--disable

Disable the specified schedule

--enable

Enable the specified schedule

The fields that can be specified in the JSON file describing a schedule are:

frequency

The overall frequency at which to take snapshots. Valid values include: ‘hourly’, ‘daily’, ‘weekly’, ‘monthly’.

minute

An integer between 1-59 representing the minute at which the operation should be run. This field is optional, and the default value is 1 if not specified.

hour

An integer between 0-23 representing the hour at which the operation should be run. This field is optional, and the default value is 0 if not specified.

weekday

An integer between 0-6 representing the day of the week on which the operation should be run. Sunday is represented by 0 and so on and so forth. This field is optional, and the default value is 0 if not specified.

monthday

An integer between 1-28 representing the day of the month on which the operation should be run. This field is optional, and the default value is 1 if not specified.

Note

Only one snapshot schedule of each frequency type can be created. You cannot set 2 different hourly snapshot schedules. However, 1 hourly and 1 weekly schedule is a supported combination.

Snapshot Schedule as a JSON:

Here’s an example of a JSON file describing a snapshot schedule:

{
   "frequency": "weekly",
   "weekday": 3,
   "hour": 5,
   "minute": 30,
}

The above JSON will configure a snapshot schedule running every week on Wednesday at 05:30 AM.

# robin app snapshot-schedule a1 --snapshot-schedule demo_sched.json --retain 2 --enable --wait
Job:  116 Name: ApplicationSetSnapBack State: PREPARED        Error: 0
Job:  116 Name: ApplicationSetSnapBack State: COMPLETED       Error: 0

Snapshot Schedule as a CRON:

Robin allows one to specify a snapshot schedule via a CRON string with the standardised format. However there are three caveats. First the minute parameter of the string must always be set as minutely snapshot schedules are not supported. In a similar vein the parameter indicating the month must also be set (if applicable) as yearly schedules are not supported either. Finally one cannot specify both a day of the month and a day of the week as it is not a support configuration.

Here’s an example of a CRON string describing a snapshot schedule:

30 5 * * 3

The above CRON string configures a snapshot schedule running every week on Wednesday at 05:30 AM.

# robin app snapshot-schedule a1 --snapshot-scheedule-cron "30 5 * * 3" --retain 2 --enable --wait
Job:  116 Name: ApplicationSetSnapBack State: PREPARED        Error: 0
Job:  116 Name: ApplicationSetSnapBack State: COMPLETED       Error: 0

10.15. Manage Application Backup Schedules

Robin CNS allows configuring a schedule to automatically backup application snapshots and set retention policies. The advantage is that an application can always be restored to the state saved in the backup. The schedule can be set via a JSON file or a CRON string. Issue the following command to set up a backup schedule for an app:

Note

A snapshot schedule must be configured for the application before a backup schedule can be set.

# robin app backup-schedule <app_name>
                            --backup-schedule <schedule>
                            --backup-schedule-cron <schedule>
                            --retain <retained_backups>
                            --filter <snap_filter>
                            --disable
                            --enable

app_name

Application instance name

--backup-scheedule <schedule>

Backup schedule specified as JSON

--backup-scheedule-cron <schedule>

Backup schedule specified as CRON string

--retain <retained_backups>

Number of backups to retain with the specified schedule

--filter <snap_filter>

Frequency of snapshot schedule to backup

--disable

Disable the specified schedule

--enable

Enable the specified schedule

The fields that can be specified in the JSON file describing a schedule are:

frequency

The overall frequency at which to take backups. Valid values include: ‘hourly’, ‘daily’, ‘weekly’, ‘monthly’.

minute

An integer between 1-59 representing the minute at which the operation should be run. This field is optional, and the default value is 1 if not specified.

hour

An integer between 0-23 representing the hour at which the operation should be run. This field is optional, and the default value is 0 if not specified.

weekday

An integer between 0-6 representing the day of the week on which the operation should be run. Sunday is represented by 0 and so on and so forth. This field is optional, and the default value is 0 if not specified.

monthday

An integer between 1-28 representing the day of the month on which the operation should be run. This field is optional, and the default value is 1 if not specified.

Note

Only one backup schedule of each frequency type can be created. You cannot set 2 different hourly backup schedules. However, 1 hourly and 1 weekly schedule is a supported combination.

Backup Schedule as a JSON:

Here’s an example of a JSON file describing a backup schedule:

{
   "frequency": "weekly",
   "weekday": 0,
   "hour": 7,
   "minute": 15,
}

The above JSON will configure a backup schedule running every week on Sunday at 07:15 AM.

# robin app backup-schedule a1 --backup-schedule demo_sched.json --retain 3 --enable --filter daily --wait
Job:  116 Name: ApplicationSetSnapBack State: PREPARED        Error: 0
Job:  116 Name: ApplicationSetSnapBack State: COMPLETED       Error: 0

Backup Schedule as a CRON:

Robin allows one to specify a backup schedule via a CRON string with the standardised format. However there are three caveats. First the minute parameter of the string must always be set as minutely backup schedules are not supported. In a similar vein the parameter indicating the month must also be set (if applicable) as yearly schedules are not supported either. Finally one cannot specify both a day of the month and a day of the week as it is not a support configuration.

Here’s an example of a CRON string describing a snapshot schedule:

15 7 * * 0

The above CRON string will configure a backup schedule running every week on Sunday at 07:15 AM.

# robin app backup-schedule a1 --backup-scheedule-cron "15 7 * * 0" --retain 2 --enable --filter daily --wait
Job:  116 Name: ApplicationSetSnapBack State: PREPARED        Error: 0
Job:  116 Name: ApplicationSetSnapBack State: COMPLETED       Error: 0

10.16. Restore an Application from a Snapshot or Backup

An application can be restored to the point-in-time state saved within an associated snapshot or backup (a snapshot that has been pushed to a storage repo). Issue the following command to recover an app to a specific point-in-time:

# robin app restore <app_name> [--snapshotid <snapshotid>] [--backupid <backupid>]

app_name

Application instance name

--snapshotid <snapshotid>

ID of application snapshot

--backupid <backupid>

ID of application backup

Note

One of --snapshotid or --backkupid must be provided.

Example:

# robin app restore mysql1 --snapshotid 2b388be6497211eaba7a190f2cdd554f --wait
Job:  188 Name: K8SApplicationRollback State: PREPARED        Error: 0
Job:  188 Name: K8SApplicationRollback State: AGENT_WAIT      Error: 0
Job:  188 Name: K8SApplicationRollback State: COMPLETED       Error: 0

Restores an application to the point-in-time state saved within an associated snapshot or backup (a snapshot that has been pushed to a storage repo).

End Point: /api/v3/robin_server/robin_server/apps/<appname>

Method: PUT

URL Parameters: None

Data Parameters:

  • action: rollback - This mandatory field within the payload specifies that the restore operation is to be performed.

  • snapshotid: <snapshotid> - Utilizing this parameter, by specifiying the UUID of a snapshot, results in the application being rolled back to the state saved in the aformentioned snapshot.

  • backupid: <backupid> - Utilizing this parameter, by specifiying the UUID of a backup, results in the application being rolled back to the state saved in the aformentioned backup.

Note

One of snapshotid or backupid must be provided.

Port: RCM Port (default value is 29442)

Headers:

  • Authorization: <auth_token> : Authorization token to identify which user is sending the request. The token can be acquired from the login API.

Success Response Code: 202

Error Response Code: 500 (Internal Server Error), 404 (Not Found Error), 401 (Unauthorized Error), 400 (Invalid API Usage Error)

Example Response:

Output
{
   "plan":{
      "snap_app":{
         "roles":[
            {
               "vnodes":[
                  {
                     "service_uids":[
                        "390f55e2-56dd-46f1-8c94-4f0c38c92aeb"
                     ],
                     "rpoolid":1,
                     "network":[
                        {
                           "subnet":"172.21.0.0",
                           "ippool":"robin-default",
                           "interfaces":1,
                           "allocated_ip":"172.21.24.104",
                           "allocated_prefix":16,
                           "name":"robin-default",
                           "allocated_by":"system",
                           "driver":"calico",
                           "allocated_names":[
                              "eth0"
                           ],
                           "allocated_netmask":"255.255.0.0"
                        }
                     ],
                     "sidecar_info":{
                        "mem":0,
                        "gpu":0,
                        "hugepages_2m":0,
                        "containers":[

                        ],
                        "cpu":0,
                        "hugepages_1g":0
                     },
                     "hosttags":{
                        "robinhost":[
                           "cscale-82-239"
                        ],
                        "kubernetes.io\/arch":[
                           "amd64"
                        ],
                        "rnodetype":[
                           "robin-worker-node"
                        ],
                        "nodetype":[
                           "robin-node"
                        ],
                        "domain":[
                           "ROBIN"
                        ],
                        "kubernetes.io\/os":[
                           "linux"
                        ],
                        "robin.io\/robinrpool":[
                           "default"
                        ],
                        "robinrpool":[
                           "default"
                        ]
                     },
                     "enable_hooklogs":true,
                     "cmdlineargs":"-W",
                     "vnodehooks":{
                        "prestart":"bash vnode_sample opr=prestart",
                        "postcreate":"bash check_mysql",
                        "poststart":"bash check_mysql",
                        "postgrow":"bash check_mysql",
                        "postrollback":"bash check_mysql",
                        "poststop":"bash vnode_sample opr=poststop",
                        "pregrow":"bash vnode_sample opr=pregrow",
                        "prerollback":"bash vnode_sample opr=prerollback",
                        "preclone":"bash vnode_sample opr=preclone",
                        "prestop":"bash vnode_sample opr=prestop",
                        "precreate":"bash vnode_sample opr=precreate",
                        "postsnapshot":"bash unquiesce.sh",
                        "presnapshot":"bash quiesce.sh",
                        "postclone":"bash check_mysql",
                        "postdestroy":"bash vnode_sample opr=postdestroy",
                        "predestroy":"bash vnode_sample opr=predestroy"
                     },
                     "hostname":"lak-mysql-01.t001-u000003.svc.cluster.local",
                     "bundle_object_id":"7be85809d7ecf1544e461df868f163ad",
                     "enable_portmapping":true,
                     "image":{
                        "entrypoint":"custom-entrypoint.sh",
                        "engine":"docker",
                        "version":"5.7",
                        "registry_hostname":"",
                        "name":"mysql",
                        "registry_port":""
                     },
                     "numa_allocations":{
                        "0":{
                           "gpu_used":0,
                           "isol_dedicated_cores_used":0,
                           "hugepages_1g_used":0,
                           "non_isol_cores_used":1,
                           "isol_shared_cores_used":0,
                           "hugepages_2m_used":0,
                           "mem_used":1073741824
                        }
                     },
                     "calico_inuse":true,
                     "allocated_host_public_hostname":"cscale-82-239.robinsystems.com",
                     "allocated":{
                        "zoneid":1595331866,
                        "zonename":"default",
                        "nodename":"cscale-82-239",
                        "nodeid":4
                     },
                     "bundle_path":"\/usr\/local\/robin\/collections\/file-collection-1595307896158\/1595307917814\/mysql-5.7",
                     "host_ip":"172.21.24.104",
                     "appid":43,
                     "mem":{
                        "hugepages_2m":0,
                        "size":1073741824,
                        "hugepages_1g":0
                     },
                     "gpu":{
                        "max":0,
                        "min":0
                     },
                     "state":"STARTED",
                     "enable_metrics":true,
                     "allocated_host_public_ip":"10.9.82.239",
                     "commandline":"-W",
                     "cpu":{
                        "max":1,
                        "min":0
                     },
                     "allocated_host_type":"physical",
                     "allocated_host":"cscale-82-239.robinsystems.com",
                     "role":"mysql",
                     "ctime":1599592323,
                     "volume_groups":[
                        {
                           "stormgr_id":56,
                           "name":"lak.mysql.01.72.1.2519c51d-f90d-4753-9fd8-bc689b32938c",
                           "layout":"round-robin",
                           "volumes":[
                              "lak.mysql.01.data.1.db34409d-5077-4505-9382-b74cab487726"
                           ],
                           "media":"HDD",
                           "device_sets":[
                              {
                                 "stormgr_id":75,
                                 "name":"lak.mysql.01.72.1.2519c51d-f90d-4753-9fd8-bc689b32938c.0.cc0ba584-9372-4828-9058-24918a6093a9",
                                 "devices":[
                                    {
                                       "role":"Storage",
                                       "max_throughput_intensive_vols_per_disk":1,
                                       "pused":1006632960,
                                       "reattachable":0,
                                       "protected":0,
                                       "max_latency_sensitive_vols_per_disk":2,
                                       "wwn":"0x6002248067f958fce9788c6f585a1eb7",
                                       "psize":107374182400,
                                       "hostname":"cscale-82-239.robinsystems.com",
                                       "write_unit":4096,
                                       "aslices":49,
                                       "slices":77,
                                       "capacity":107374182400,
                                       "tags":{

                                       },
                                       "allocated_slices":2,
                                       "stormgr_id":6,
                                       "type":"HDD",
                                       "state":"READY",
                                       "score":74,
                                       "devpath":"\/dev\/disk\/by-id\/scsi-36002248067f958fce9788c6f585a1eb7",
                                       "max_volumes_per_disk":40,
                                       "host":"cscale-82-239.robinsystems.com"
                                    }
                                 ]
                              }
                           ],
                           "rpoolid":1,
                           "replicas":1
                        }
                     ],
                     "restart_num":15,
                     "pod_name":"lak-mysql-01",
                     "vnodeid":16,
                     "engine":"docker",
                     "appname":"lak",
                     "storage":[
                        {
                           "faultdomain":"host",
                           "protection":0,
                           "snap_reserved":20,
                           "media":"HDD",
                           "encryption":"none",
                           "workload":0,
                           "fstype":"ext4",
                           "replication":1,
                           "layout":"round-robin",
                           "volgrp_name":"lak.mysql.01.72.1.2519c51d-f90d-4753-9fd8-bc689b32938c",
                           "snapname":"snap1",
                           "lvm_vol_count":"0",
                           "path":"\/var\/lib\/mysql",
                           "compression":"disabled",
                           "blocksize":4096,
                           "k8s_name":"lak-mysql-01-data-1-db34409d",
                           "vol_ns":"t001-u000003",
                           "disk_tags":{

                           },
                           "allocated":{
                              "media":72,
                              "stordriver":{
                                 "media":"HDD",
                                 "type":"das",
                                 "faultdomain":"host",
                                 "protection":0
                              },
                              "replication":1,
                              "next_backupid":1,
                              "appname":"default",
                              "resource_poolid":1,
                              "vtype":0,
                              "current_snapshotid":1,
                              "slice_size":1073741824,
                              "protection":0,
                              "multinode_mounting":false,
                              "volumeid":"56",
                              "compression":0,
                              "priority":2,
                              "params":{

                              },
                              "qgroupid":58,
                              "next_snapshotid":2,
                              "appid":1,
                              "name":"lak.mysql.01.data.1.db34409d-5077-4505-9382-b74cab487726",
                              "block_size":4096,
                              "snapshot_space_limit":214748365,
                              "current_snapshot":"active_snap",
                              "size":1073741824,
                              "genkey":1599592280515667,
                              "snapname":"snap1",
                              "grpid":56,
                              "partitions":0
                           },
                           "lvm_type":"None",
                           "type":"data",
                           "snapshot_space_limit":214748365,
                           "size":1073741824,
                           "name":"lak.mysql.01.data.1.db34409d-5077-4505-9382-b74cab487726",
                           "pvcpolicy":"create",
                           "stordriver":{
                              "media":"HDD",
                              "type":"das",
                              "faultdomain":"host",
                              "protection":0
                           }
                        }
                     ],
                     "services":[
                        {
                           "vnodename":"lak-mysql-01",
                           "selectors":{
                              "robin.io\/vnode":"lak-mysql-01"
                           },
                           "labels":{
                              "namespace":"t001-u000003",
                              "robin.io\/username":"robin",
                              "robin.io\/tenant_id":"1",
                              "robin.io\/user_id":"3",
                              "scope":"vnode",
                              "robin.io\/tenant":"Administrators"
                           },
                           "appname":"lak",
                           "k8s_name":"lak-mysql-01-np-0",
                           "ports":[
                              {
                                 "port":3306,
                                 "name":"tcp-port3306",
                                 "protocol":"TCP",
                                 "target_port":3306,
                                 "node_port":30640
                              }
                           ],
                           "cluster_ip":"172.19.45.11",
                           "type":"NodePort"
                        }
                     ],
                     "env":{
                        "MYSQL_USER":{
                           "type":"text",
                           "value":"robin"
                        },
                        "MYSQL_DATABASE":{
                           "type":"text",
                           "value":"robin"
                        },
                        "allocated":{
                           "MYSQL_USER":"robin",
                           "ROBINHOST_TAG_ROBINHOST":"cscale-82-239",
                           "ROBINHOST_TAG_KUBERNETES.IO-ARCH":"amd64",
                           "ROBINHOST_TAG_NODETYPE":"robin-node",
                           "MYSQL_PASSWORD":"robin123",
                           "POD_NS":"t001-u000003",
                           "ROBINHOST":"cscale-82-239.robinsystems.com",
                           "POD_NAME":"lak-mysql-01",
                           "MYSQL_ROOT_PASSWORD":"robin123",
                           "K8S_NODE":"cscale-82-239",
                           "MYSQL_DATABASE":"robin",
                           "ROBINHOST_TAG_DOMAIN":"ROBIN",
                           "ROBINHOST_TAG_RNODETYPE":"robin-worker-node",
                           "ROBINHOST_TAG_ROBINRPOOL":"default",
                           "ROBINHOST_TAG_KUBERNETES.IO-OS":"linux"
                        },
                        "MYSQL_ROOT_PASSWORD":{
                           "type":"password",
                           "value":"robin123"
                        },
                        "MYSQL_PASSWORD":{
                           "type":"password",
                           "value":"robin123"
                        }
                     },
                     "root_fs":"\/usr\/local\/robin\/instances\/lak-mysql-01.t001-u000003.svc.cluster.local",
                     "restart_on_qoscfg":true,
                     "k8s_provider":"robin",
                     "vnodehookargs":{
                        "postdestroy":[
                           "opr=postdestroy"
                        ],
                        "prestart":[
                           "opr=prestart"
                        ],
                        "postcreate":[

                        ],
                        "poststart":[

                        ],
                        "postrollback":[

                        ],
                        "postgrow":[

                        ],
                        "poststop":[
                           "opr=poststop"
                        ],
                        "pregrow":[
                           "opr=pregrow"
                        ],
                        "prerollback":[
                           "opr=prerollback"
                        ],
                        "preclone":[
                           "opr=preclone"
                        ],
                        "prestop":[
                           "opr=prestop"
                        ],
                        "precreate":[
                           "opr=precreate"
                        ],
                        "postsnapshot":[

                        ],
                        "postclone":[

                        ],
                        "presnapshot":[

                        ],
                        "predestroy":[
                           "opr=predestroy"
                        ]
                     },
                     "role_name":"mysql",
                     "name":"lak.mysql.01",
                     "cm_keys":[
                        "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDKS44FJBT75q64OPV8s1WL\/lFbMogtnSm9wk6i+uQArrteNI6DhMYnBV8GC+Dttr2sxurxm\/QEW3Pa9OKhtCtT\/CQ0h+w7u8f8Mu77zAtAd4rhFAtuK86wiZPp8vSRp3Q2l7TMC31VV08wa7fulk\/SSF6maJRQxxmH2lNOsHYOHZve4TSZ+FuGT5h0KMAtGjy7jDSfdt4nBFb\/EzVuUE70y8x8q7SmObQGCDBoQlC\/QwcmBJ+T25l7fDfVTSXSjCRb2wN2DIxUA7Cr1hNRoZNPAAFahq+jWYYS+aKaXVe6cR6GEtgQ66ey7Zn8ZHOrmW9n9LEnYT\/CmzV6l4gwfyIp root@cscale-82-236",
                        "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCxdMba+MjIxpx8IzmIodVTs13BJj3BAsRaeOpIC3g07eKcb\/WCJ3E9kFvOyJzqX1KmOpYqwtYG0zTwd+xPlc9fudEoORLM2jAt5JZQliT8IDGLyRYqhsOaL+HPKeO8VU9u0sd8938OXGKEJQ1Qt0DQcXuXTSDYGefS24TaWxJ6r\/bbM0WXYrJiFc83LemUHGq\/vdNpXNbGiAMPCTF3\/ZkHsIQTJd8dmBXn3VsEcRbvSGnHIXvQjRZRJp5hBVl\/zFZtGFuT7Rs1IVpZtsO81hFCkgAX\/jonSglX193+A5oCFPeTsfOD01A3r9x3qdcgtSwxkU5ElmksR6BNt0pXenO7 root@cscale-82-238",
                        "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCwaDQ4NFtH5X1NVdUW\/trWG0W3LaLOQdz0LIwTMiYo707zpW5STz6R4qRCyonqA5DGx9KicnDvbLYXrDtEFczf68j3N9mgm4QKQ5NAUsKgCrXD\/musfl7T0kwmADh4tWI1pbnEJNAfY+xOvKqd1MQIoXNY3jDHlZghb0un+ZnCkxlEwLNUEZySdVhuUitK6fH0abpbLDSWAqqWvzBQMeTYVD91KJPqQXPyejQcjw31dmFYQJ+Ru7Nm0+iifXIZ4poyGZuxNZL9K0F4j+mS+LQav+dAnQGfL62HyAZhHmFoqF9l1GQs6qwrWU6UaZPLAt3XaghtDJwXTks6vEkjibNN root@cscale-82-237"
                     ],
                     "utime":1599592323,
                     "pod_ns":"t001-u000003",
                     "bundleid":4,
                     "id":16
                  }
               ],
               "image":{
                  "entrypoint":"custom-entrypoint.sh",
                  "engine":"docker",
                  "version":"5.7",
                  "registry_hostname":"",
                  "name":"mysql",
                  "registry_port":""
               },
               "commandline":"-W",
               "volume_groups":[

               ],
               "display_name":"Runs mysql database server",
               "qgroups":{
                  "data":{
                     "rd_min_iops":0,
                     "enabled":false,
                     "wr_min_iops":0,
                     "priority":1,
                     "rd_weight":1,
                     "wr_max_iops":2000000,
                     "wr_weight":1,
                     "rd_max_iops":2000000,
                     "wr_min_window":500,
                     "rd_min_window":500
                  }
               },
               "restart_on_qoscfg":true,
               "name":"mysql",
               "service_ports":[
                  3306
               ]
            }
         ],
         "desc":"",
         "rpool":"default",
         "enable_hooklogs":true,
         "bundle_object_id":"7be85809d7ecf1544e461df868f163ad",
         "from_template":null,
         "parentid":43,
         "clonemode":"unfenced",
         "auto_relocate":true,
         "name":"lak_snap1",
         "clone":"enabled",
         "snapname":"snap1",
         "robin_version":"5.3.1-349",
         "snapshot":"enabled",
         "parent_last_known_state":6,
         "restart_num":15,
         "namespace":"t001-u000003",
         "planid":522,
         "rpoolid":1,
         "tenant":"Administrators",
         "content_id":"7be85809d7ecf1544e461df868f163ad",
         "bundle_path":"\/usr\/local\/robin\/collections\/file-collection-1595307896158\/1595307917814\/mysql-5.7",
         "app_ns":"t001-u000003",
         "bundleid":4,
         "master_name":"lak",
         "apphooks":{
            "postdestroy":"bash app_sample postdestroy",
            "prestart":"bash app_sample prestart",
            "validate":"python3.4 validate_template.py",
            "health":"python3.4 health.py",
            "postcreate":"bash app_sample postcreate",
            "poststart":"bash app_sample poststart",
            "allocated":{
               "prestart":"bash app_sample prestart",
               "validate":"python3.4 validate_template.py",
               "health":"python3.4 health.py",
               "postcreate":"bash app_sample postcreate",
               "poststart":"bash app_sample poststart",
               "postgrow":"bash app_sample postgrow",
               "postrollback":"bash app_sample postrollback",
               "poststop":"bash app_sample poststop",
               "pregrow":"bash app_sample pregrow",
               "prerollback":"bash app_sample prerollback",
               "preclone":"bash app_sample preclone",
               "prestop":"bash app_sample prestop",
               "precreate":"bash app_sample precreate",
               "postsnapshot":"bash app_sample postsnapshot",
               "presnapshot":"bash app_sample presnapshot",
               "postclone":"bash app_sample postclone",
               "postdestroy":"bash app_sample postdestroy",
               "predestroy":"bash app_sample predestroy"
            },
            "postrollback":"bash app_sample postrollback",
            "postgrow":"bash app_sample postgrow",
            "poststop":"bash app_sample poststop",
            "pregrow":"bash app_sample pregrow",
            "prerollback":"bash app_sample prerollback",
            "preclone":"bash app_sample preclone",
            "prestop":"bash app_sample prestop",
            "precreate":"bash app_sample precreate",
            "postsnapshot":"bash app_sample postsnapshot",
            "postclone":"bash app_sample postclone",
            "presnapshot":"bash app_sample presnapshot",
            "predestroy":"bash app_sample predestroy"
         },
         "enable_metrics":true,
         "zoneid":1595331866,
         "id":43,
         "pvcpolicy":"create",
         "username":"robin"
      },
      "orig_app":{
         "roles":[
            {
               "qgroups":{
                  "data":{
                     "rd_min_iops":0,
                     "wr_min_iops":0,
                     "wr_weight":1,
                     "priority":1,
                     "rd_weight":1,
                     "wr_max_iops":2000000,
                     "enabled":false,
                     "rd_max_iops":2000000,
                     "wr_min_window":500,
                     "rd_min_window":500
                  }
               },
               "image":{
                  "entrypoint":"custom-entrypoint.sh",
                  "engine":"docker",
                  "version":"5.7",
                  "registry_hostname":"",
                  "name":"mysql",
                  "registry_port":""
               },
               "commandline":"-W",
               "restart_on_qoscfg":true,
               "volume_groups":[

               ],
               "display_name":"Runs mysql database server",
               "vnodes":[
                  {
                     "service_uids":[
                        "390f55e2-56dd-46f1-8c94-4f0c38c92aeb"
                     ],
                     "rpoolid":1,
                     "network":[
                        {
                           "subnet":"172.21.0.0",
                           "ippool":"robin-default",
                           "interfaces":1,
                           "allocated_ip":"172.21.24.104",
                           "allocated_prefix":16,
                           "name":"robin-default",
                           "allocated_by":"system",
                           "driver":"calico",
                           "allocated_names":[
                              "eth0"
                           ],
                           "allocated_netmask":"255.255.0.0"
                        }
                     ],
                     "sidecar_info":{
                        "mem":0,
                        "gpu":0,
                        "hugepages_2m":0,
                        "containers":[

                        ],
                        "cpu":0,
                        "hugepages_1g":0
                     },
                     "hosttags":{
                        "robin.io\/robinrpool":[
                           "default"
                        ],
                        "robinrpool":[
                           "default"
                        ],
                        "rnodetype":[
                           "robin-worker-node"
                        ],
                        "nodetype":[
                           "robin-node"
                        ],
                        "domain":[
                           "ROBIN"
                        ],
                        "kubernetes.io\/os":[
                           "linux"
                        ],
                        "robinhost":[
                           "cscale-82-239"
                        ],
                        "kubernetes.io\/arch":[
                           "amd64"
                        ]
                     },
                     "enable_hooklogs":true,
                     "cmdlineargs":"-W",
                     "vnodehooks":{
                        "postdestroy":"bash vnode_sample opr=postdestroy",
                        "prestart":"bash vnode_sample opr=prestart",
                        "postcreate":"bash check_mysql",
                        "poststart":"bash check_mysql",
                        "postrollback":"bash check_mysql",
                        "postgrow":"bash check_mysql",
                        "poststop":"bash vnode_sample opr=poststop",
                        "pregrow":"bash vnode_sample opr=pregrow",
                        "prerollback":"bash vnode_sample opr=prerollback",
                        "preclone":"bash vnode_sample opr=preclone",
                        "prestop":"bash vnode_sample opr=prestop",
                        "precreate":"bash vnode_sample opr=precreate",
                        "postsnapshot":"bash unquiesce.sh",
                        "postclone":"bash check_mysql",
                        "presnapshot":"bash quiesce.sh",
                        "predestroy":"bash vnode_sample opr=predestroy"
                     },
                     "hostname":"lak-mysql-01.t001-u000003.svc.cluster.local",
                     "bundle_object_id":"7be85809d7ecf1544e461df868f163ad",
                     "enable_portmapping":true,
                     "image":{
                        "entrypoint":"custom-entrypoint.sh",
                        "engine":"docker",
                        "version":"5.7",
                        "registry_hostname":"",
                        "name":"mysql",
                        "registry_port":""
                     },
                     "numa_allocations":{
                        "0":{
                           "gpu_used":0,
                           "isol_dedicated_cores_used":0,
                           "hugepages_1g_used":0,
                           "non_isol_cores_used":1,
                           "isol_shared_cores_used":0,
                           "hugepages_2m_used":0,
                           "mem_used":1073741824
                        }
                     },
                     "commandline":"-W",
                     "calico_inuse":true,
                     "allocated_host_public_hostname":"cscale-82-239.robinsystems.com",
                     "allocated":{
                        "zoneid":1595331866,
                        "zonename":"default",
                        "nodename":"cscale-82-239",
                        "nodeid":4
                     },
                     "bundle_path":"\/usr\/local\/robin\/collections\/file-collection-1595307896158\/1595307917814\/mysql-5.7",
                     "host_ip":"172.21.24.104",
                     "appid":43,
                     "mem":{
                        "hugepages_1g":0,
                        "size":1073741824,
                        "hugepages_2m":0
                     },
                     "gpu":{
                        "max":0,
                        "min":0
                     },
                     "storage":[
                        {
                           "faultdomain":"host",
                           "snapshot_space_limit":214748365,
                           "snap_reserved":20,
                           "media":"HDD",
                           "encryption":"none",
                           "workload":0,
                           "fstype":"ext4",
                           "replication":1,
                           "layout":"round-robin",
                           "volgrp_name":"lak.mysql.01.72.1.2519c51d-f90d-4753-9fd8-bc689b32938c",
                           "lvm_vol_count":"0",
                           "path":"\/var\/lib\/mysql",
                           "compression":"disabled",
                           "type":"data",
                           "blocksize":4096,
                           "k8s_name":"lak-mysql-01-data-1-db34409d",
                           "vol_ns":"t001-u000003",
                           "disk_tags":{

                           },
                           "allocated":{
                              "media":72,
                              "replication":1,
                              "next_backupid":1,
                              "appname":"default",
                              "resource_poolid":1,
                              "vtype":0,
                              "current_snapshotid":2,
                              "next_snapshotid":2,
                              "compression":0,
                              "multinode_mounting":false,
                              "volumeid":"56",
                              "priority":2,
                              "params":{

                              },
                              "snapshot_space_limit":214748365,
                              "qgroupid":58,
                              "slice_size":1073741824,
                              "appid":1,
                              "name":"lak.mysql.01.data.1.db34409d-5077-4505-9382-b74cab487726",
                              "block_size":4096,
                              "protection":0,
                              "current_snapshot":"active_snap",
                              "size":1073741824,
                              "partitions":0,
                              "genkey":1599592280515667,
                              "grpid":56,
                              "stordriver":{
                                 "media":"HDD",
                                 "type":"das",
                                 "faultdomain":"host",
                                 "protection":0
                              }
                           },
                           "lvm_type":"None",
                           "name":"lak.mysql.01.data.1.db34409d-5077-4505-9382-b74cab487726",
                           "protection":0,
                           "size":1073741824,
                           "pvcpolicy":"create",
                           "stordriver":{
                              "media":"HDD",
                              "type":"das",
                              "faultdomain":"host",
                              "protection":0
                           }
                        }
                     ],
                     "enable_metrics":true,
                     "allocated_host_public_ip":"10.9.82.239",
                     "state":"STARTED",
                     "cpu":{
                        "max":1,
                        "min":0
                     },
                     "allocated_host_type":"physical",
                     "allocated_host":"cscale-82-239.robinsystems.com",
                     "role":"mysql",
                     "ctime":1599592323,
                     "volume_groups":[
                        {
                           "rpoolid":1,
                           "name":"lak.mysql.01.72.1.2519c51d-f90d-4753-9fd8-bc689b32938c",
                           "device_sets":[
                              {
                                 "name":"lak.mysql.01.72.1.2519c51d-f90d-4753-9fd8-bc689b32938c.0.cc0ba584-9372-4828-9058-24918a6093a9",
                                 "stormgr_id":75,
                                 "devices":[
                                    {
                                       "role":"Storage",
                                       "max_throughput_intensive_vols_per_disk":1,
                                       "pused":1006632960,
                                       "reattachable":0,
                                       "protected":0,
                                       "max_latency_sensitive_vols_per_disk":2,
                                       "wwn":"0x6002248067f958fce9788c6f585a1eb7",
                                       "psize":107374182400,
                                       "hostname":"cscale-82-239.robinsystems.com",
                                       "write_unit":4096,
                                       "aslices":49,
                                       "slices":77,
                                       "capacity":107374182400,
                                       "tags":{

                                       },
                                       "allocated_slices":2,
                                       "stormgr_id":6,
                                       "type":"HDD",
                                       "state":"READY",
                                       "score":74,
                                       "devpath":"\/dev\/disk\/by-id\/scsi-36002248067f958fce9788c6f585a1eb7",
                                       "max_volumes_per_disk":40,
                                       "host":"cscale-82-239.robinsystems.com"
                                    }
                                 ]
                              }
                           ],
                           "volumes":[
                              "lak.mysql.01.data.1.db34409d-5077-4505-9382-b74cab487726"
                           ],
                           "layout":"round-robin",
                           "media":"HDD",
                           "stormgr_id":56,
                           "replicas":1
                        }
                     ],
                     "restart_num":15,
                     "pod_name":"lak-mysql-01",
                     "vnodeid":16,
                     "engine":"docker",
                     "appname":"lak",
                     "services":[
                        {
                           "vnodename":"lak-mysql-01",
                           "selectors":{
                              "robin.io\/vnode":"lak-mysql-01"
                           },
                           "labels":{
                              "namespace":"t001-u000003",
                              "robin.io\/username":"robin",
                              "robin.io\/tenant":"Administrators",
                              "robin.io\/user_id":"3",
                              "scope":"vnode",
                              "robin.io\/tenant_id":"1"
                           },
                           "appname":"lak",
                           "k8s_name":"lak-mysql-01-np-0",
                           "ports":[
                              {
                                 "protocol":"TCP",
                                 "name":"tcp-port3306",
                                 "port":3306,
                                 "target_port":3306,
                                 "node_port":30640
                              }
                           ],
                           "cluster_ip":"172.19.45.11",
                           "type":"NodePort"
                        }
                     ],
                     "env":{
                        "MYSQL_USER":{
                           "type":"text",
                           "value":"robin"
                        },
                        "MYSQL_DATABASE":{
                           "type":"text",
                           "value":"robin"
                        },
                        "allocated":{
                           "MYSQL_USER":"robin",
                           "ROBINHOST_TAG_ROBINHOST":"cscale-82-239",
                           "ROBINHOST_TAG_KUBERNETES.IO-ARCH":"amd64",
                           "POD_NS":"t001-u000003",
                           "ROBINHOST_TAG_NODETYPE":"robin-node",
                           "MYSQL_PASSWORD":"robin123",
                           "POD_NAME":"lak-mysql-01",
                           "ROBINHOST":"cscale-82-239.robinsystems.com",
                           "ROBINHOST_TAG_ROBINRPOOL":"default",
                           "K8S_NODE":"cscale-82-239",
                           "MYSQL_DATABASE":"robin",
                           "ROBINHOST_TAG_DOMAIN":"ROBIN",
                           "ROBINHOST_TAG_RNODETYPE":"robin-worker-node",
                           "MYSQL_ROOT_PASSWORD":"robin123",
                           "ROBINHOST_TAG_KUBERNETES.IO-OS":"linux"
                        },
                        "MYSQL_ROOT_PASSWORD":{
                           "type":"password",
                           "value":"robin123"
                        },
                        "MYSQL_PASSWORD":{
                           "type":"password",
                           "value":"robin123"
                        }
                     },
                     "root_fs":"\/usr\/local\/robin\/instances\/lak-mysql-01.t001-u000003.svc.cluster.local",
                     "restart_on_qoscfg":true,
                     "k8s_provider":"robin",
                     "vnodehookargs":{
                        "prestart":[
                           "opr=prestart"
                        ],
                        "postcreate":[

                        ],
                        "poststart":[

                        ],
                        "postgrow":[

                        ],
                        "postrollback":[

                        ],
                        "poststop":[
                           "opr=poststop"
                        ],
                        "pregrow":[
                           "opr=pregrow"
                        ],
                        "prerollback":[
                           "opr=prerollback"
                        ],
                        "preclone":[
                           "opr=preclone"
                        ],
                        "prestop":[
                           "opr=prestop"
                        ],
                        "precreate":[
                           "opr=precreate"
                        ],
                        "postsnapshot":[

                        ],
                        "presnapshot":[

                        ],
                        "postclone":[

                        ],
                        "postdestroy":[
                           "opr=postdestroy"
                        ],
                        "predestroy":[
                           "opr=predestroy"
                        ]
                     },
                     "role_name":"mysql",
                     "name":"lak.mysql.01",
                     "cm_keys":[
                        "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDKS44FJBT75q64OPV8s1WL\/lFbMogtnSm9wk6i+uQArrteNI6DhMYnBV8GC+Dttr2sxurxm\/QEW3Pa9OKhtCtT\/CQ0h+w7u8f8Mu77zAtAd4rhFAtuK86wiZPp8vSRp3Q2l7TMC31VV08wa7fulk\/SSF6maJRQxxmH2lNOsHYOHZve4TSZ+FuGT5h0KMAtGjy7jDSfdt4nBFb\/EzVuUE70y8x8q7SmObQGCDBoQlC\/QwcmBJ+T25l7fDfVTSXSjCRb2wN2DIxUA7Cr1hNRoZNPAAFahq+jWYYS+aKaXVe6cR6GEtgQ66ey7Zn8ZHOrmW9n9LEnYT\/CmzV6l4gwfyIp root@cscale-82-236",
                        "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCxdMba+MjIxpx8IzmIodVTs13BJj3BAsRaeOpIC3g07eKcb\/WCJ3E9kFvOyJzqX1KmOpYqwtYG0zTwd+xPlc9fudEoORLM2jAt5JZQliT8IDGLyRYqhsOaL+HPKeO8VU9u0sd8938OXGKEJQ1Qt0DQcXuXTSDYGefS24TaWxJ6r\/bbM0WXYrJiFc83LemUHGq\/vdNpXNbGiAMPCTF3\/ZkHsIQTJd8dmBXn3VsEcRbvSGnHIXvQjRZRJp5hBVl\/zFZtGFuT7Rs1IVpZtsO81hFCkgAX\/jonSglX193+A5oCFPeTsfOD01A3r9x3qdcgtSwxkU5ElmksR6BNt0pXenO7 root@cscale-82-238",
                        "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCwaDQ4NFtH5X1NVdUW\/trWG0W3LaLOQdz0LIwTMiYo707zpW5STz6R4qRCyonqA5DGx9KicnDvbLYXrDtEFczf68j3N9mgm4QKQ5NAUsKgCrXD\/musfl7T0kwmADh4tWI1pbnEJNAfY+xOvKqd1MQIoXNY3jDHlZghb0un+ZnCkxlEwLNUEZySdVhuUitK6fH0abpbLDSWAqqWvzBQMeTYVD91KJPqQXPyejQcjw31dmFYQJ+Ru7Nm0+iifXIZ4poyGZuxNZL9K0F4j+mS+LQav+dAnQGfL62HyAZhHmFoqF9l1GQs6qwrWU6UaZPLAt3XaghtDJwXTks6vEkjibNN root@cscale-82-237"
                     ],
                     "utime":1599592323,
                     "pod_ns":"t001-u000003",
                     "bundleid":4,
                     "id":16
                  }
               ],
               "name":"mysql",
               "service_ports":[
                  3306
               ]
            }
         ],
         "rpool":"default",
         "enable_hooklogs":true,
         "bundle_object_id":"7be85809d7ecf1544e461df868f163ad",
         "clonemode":"unfenced",
         "auto_relocate":true,
         "name":"lak",
         "clone":"enabled",
         "from_template":null,
         "robin_version":"5.3.1-349",
         "snapshot":"enabled",
         "restart_num":15,
         "namespace":"t001-u000003",
         "planid":522,
         "rpoolid":1,
         "tenant":"Administrators",
         "content_id":"7be85809d7ecf1544e461df868f163ad",
         "bundle_path":"\/usr\/local\/robin\/collections\/file-collection-1595307896158\/1595307917814\/mysql-5.7",
         "app_ns":"t001-u000003",
         "bundleid":4,
         "apphooks":{
            "prestart":"bash app_sample prestart",
            "validate":"python3.4 validate_template.py",
            "health":"python3.4 health.py",
            "postcreate":"bash app_sample postcreate",
            "poststart":"bash app_sample poststart",
            "allocated":{
               "postdestroy":"bash app_sample postdestroy",
               "prestart":"bash app_sample prestart",
               "validate":"python3.4 validate_template.py",
               "health":"python3.4 health.py",
               "postcreate":"bash app_sample postcreate",
               "poststart":"bash app_sample poststart",
               "postrollback":"bash app_sample postrollback",
               "postgrow":"bash app_sample postgrow",
               "poststop":"bash app_sample poststop",
               "pregrow":"bash app_sample pregrow",
               "prerollback":"bash app_sample prerollback",
               "preclone":"bash app_sample preclone",
               "prestop":"bash app_sample prestop",
               "precreate":"bash app_sample precreate",
               "postsnapshot":"bash app_sample postsnapshot",
               "postclone":"bash app_sample postclone",
               "presnapshot":"bash app_sample presnapshot",
               "predestroy":"bash app_sample predestroy"
            },
            "postrollback":"bash app_sample postrollback",
            "postgrow":"bash app_sample postgrow",
            "poststop":"bash app_sample poststop",
            "pregrow":"bash app_sample pregrow",
            "prerollback":"bash app_sample prerollback",
            "preclone":"bash app_sample preclone",
            "prestop":"bash app_sample prestop",
            "precreate":"bash app_sample precreate",
            "postsnapshot":"bash app_sample postsnapshot",
            "presnapshot":"bash app_sample presnapshot",
            "postclone":"bash app_sample postclone",
            "postdestroy":"bash app_sample postdestroy",
            "predestroy":"bash app_sample predestroy"
         },
         "enable_metrics":true,
         "zoneid":1595331866,
         "username":"robin",
         "pvcpolicy":"create",
         "id":43
      }
   },
   "jobid":744
}

10.17. Configure Snapshot Space Limits for an Application volume

Robin currently does not support changing the snapshot limit at the application level for the CNS product. But it can be achieved by changing the snapshot limit of individual volumes of the application.

  • Use the following command to get the volume details for the app

# robin app info  mongoapp --volmap
Volume: pvc-daea364b-de62-4739-bfb3-1bcd60fc6d12
    Size: 8G
    Snapshot Space Used: 0.34G/3G (10%)
    Snapshot Space Limit: 40%
    Drives:
         WWN: 0x0afa1ba6a08cd918b Node: ip-10-0-220-43 State: READY (96% free)
  • Use the following command to update the snapshot limit for the volumes one by one.

# robin volume snapshot-space-limit --name
                                    --snapshot_limit

======================================= ==========================================================
  ``name <name>``                  Volume Name
  ``snapshot_limit <snapshot_limit>``    Snapshot space limit in bytes
======================================= ==========================================================
# robin volume snapshot-space-limit pvc-daea364b-de62-4739-bfb3-1bcd60fc6d12 10737418240
Successfully updated volume pvc-daea364b-de62-4739-bfb3-1bcd60fc6d12 snapshot space limit to 10737418240.

This feature currently does not have API support. It will be available in the future releases.