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Backup Druid using KubeStash Auto-Backup

KubeStash can automatically be configured to backup any Druid databases in your cluster. KubeStash enables cluster administrators to deploy backup blueprints ahead of time so database owners can easily backup any Druid database with a few annotations.

In this tutorial, we are going to show how you can configure a backup blueprint for Druid databases in your cluster and backup them with a few annotations.

Before You Begin

At first, you need to have a Kubernetes cluster, and the kubectl command-line tool must be configured to communicate with your cluster. If you do not already have a cluster, you can create one by using Minikube or Kind.
Install KubeDB in your cluster following the steps here.
Install KubeStash in your cluster following the steps here.
Install KubeStash kubectl plugin following the steps here.
If you are not familiar with how KubeStash backup and restore Druid databases, please check the following guide here.

You should be familiar with the following KubeStash concepts:

To keep everything isolated, we are going to use a separate namespace called demo throughout this tutorial.

$ kubectl create ns demo
namespace/demo created

Prepare Backend

We are going to store our backed up data into a GCS bucket. We have to create a Secret with necessary credentials and a BackupStorage CR to use this backend. If you want to use a different backend, please read the respective backend configuration doc from here.

Create Secret:

Let’s create a secret called gcs-secret with access credentials to our desired GCS bucket,

$ echo -n '<your-project-id>' > GOOGLE_PROJECT_ID
$ cat /path/to/downloaded-sa-key.json > GOOGLE_SERVICE_ACCOUNT_JSON_KEY
$ kubectl create secret generic -n demo gcs-secret \
    --from-file=./GOOGLE_PROJECT_ID \
    --from-file=./GOOGLE_SERVICE_ACCOUNT_JSON_KEY
secret/gcs-secret created

Create BackupStorage:

Now, create a BackupStorage using this secret. Below is the YAML of BackupStorage CR we are going to create,

apiVersion: storage.kubestash.com/v1alpha1
kind: BackupStorage
metadata:
  name: gcs-storage
  namespace: demo
spec:
  storage:
    provider: gcs
    gcs:
      bucket: kubestash-qa
      prefix: blueprint
      secretName: gcs-secret
  usagePolicy:
    allowedNamespaces:
      from: All
  default: true
  deletionPolicy: Delete

Let’s create the BackupStorage we have shown above,

$ kubectl apply -f https://github.com/kubedb/docs/raw/v2024.11.8-rc.0/docs/guides/druid/backup/auto-backup/examples/backupstorage.yaml
backupstorage.storage.kubestash.com/gcs-storage created

Create RetentionPolicy:

Now, let’s create a RetentionPolicy to specify how the old Snapshots should be cleaned up.

Below is the YAML of the RetentionPolicy object that we are going to create,

apiVersion: storage.kubestash.com/v1alpha1
kind: RetentionPolicy
metadata:
  name: demo-retention
  namespace: demo
spec:
  default: true
  failedSnapshots:
    last: 2
  maxRetentionPeriod: 2mo
  successfulSnapshots:
    last: 5
  usagePolicy:
    allowedNamespaces:
      from: All

Let’s create the above RetentionPolicy,

$ kubectl apply -f https://github.com/kubedb/docs/raw/v2024.11.8-rc.0/docs/guides/druid/backup/auto-backup/examples/retentionpolicy.yaml
retentionpolicy.storage.kubestash.com/demo-retention created

Create Secret:

We also need to create a secret with a Restic password for backup data encryption.

Let’s create a secret called encrypt-secret with the Restic password,

$ echo -n 'changeit' > RESTIC_PASSWORD
$ kubectl create secret generic -n demo encrypt-secret \
    --from-file=./RESTIC_PASSWORD
secret "encrypt-secret" created

Auto-backup with default configurations

In this section, we are going to backup a Druid database of demo namespace. We are going to use the default configurations which will be specified in the Backup Blueprint CR.

Prepare Backup Blueprint

A BackupBlueprint allows you to specify a template for the Repository,Session or Variables of BackupConfiguration in a Kubernetes native way.

Now, we have to create a BackupBlueprint CR with a blueprint for BackupConfiguration object.

apiVersion: core.kubestash.com/v1alpha1
kind: BackupBlueprint
metadata:
  name: druid-default-backup-blueprint
  namespace: demo
spec:
  usagePolicy:
    allowedNamespaces:
      from: All
  backupConfigurationTemplate:
    deletionPolicy: OnDelete
    backends:
      - name: gcs-backend
        storageRef:
          namespace: demo
          name: gcs-storage
        retentionPolicy:
          name: demo-retention
          namespace: demo
    sessions:
      - name: frequent-backup
        sessionHistoryLimit: 3
        scheduler:
          schedule: "*/5 * * * *"
          jobTemplate:
            backoffLimit: 1
        repositories:
          - name: default-blueprint
            backend: gcs-backend
            directory: /default-blueprint
            encryptionSecret:
              name: encrypt-secret
              namespace: demo
        addon:
          name: druid-addon
          tasks:
            - name: mysql-metadata-storage-backup

Here,

.spec.backupConfigurationTemplate.backends[*].storageRef refers to our earlier created gcs-storage backupStorage.
.spec.backupConfigurationTemplate.sessions[*].schedule specifies that we want to backup the database at 5 minutes interval.

Let’s create the BackupBlueprint we have shown above,

$ kubectl apply -f https://github.com/kubedb/docs/raw/v2024.11.8-rc.0/docs/guides/druid/backup/auto-backup/examples/default-backupblueprint.yaml
backupblueprint.core.kubestash.com/druid-default-backup-blueprint created

Now, we are ready to backup our Druid databases using a few annotations.

Deploy Sample Druid Database

Create External Dependency (Deep Storage):

One of the external dependency of Druid is deep storage where the segments are stored. It is a storage mechanism that Apache Druid does not provide. Amazon S3, Google Cloud Storage, or Azure Blob Storage, S3-compatible storage (like Minio), or HDFS are generally convenient options for deep storage.

In this tutorial, we will run a minio-server as deep storage in our local kind cluster using minio-operator and create a bucket named druid in it, which the deployed druid database will use.


$ helm repo add minio https://operator.min.io/
$ helm repo update minio
$ helm upgrade --install --namespace "minio-operator" --create-namespace "minio-operator" minio/operator --set operator.replicaCount=1

$ helm upgrade --install --namespace "demo" --create-namespace druid-minio minio/tenant \
--set tenant.pools[0].servers=1 \
--set tenant.pools[0].volumesPerServer=1 \
--set tenant.pools[0].size=1Gi \
--set tenant.certificate.requestAutoCert=false \
--set tenant.buckets[0].name="druid" \
--set tenant.pools[0].name="default"

Now we need to create a Secret named deep-storage-config. It contains the necessary connection information using which the druid database will connect to the deep storage.

apiVersion: v1
kind: Secret
metadata:
  name: deep-storage-config
  namespace: demo
stringData:
  druid.storage.type: "s3"
  druid.storage.bucket: "druid"
  druid.storage.baseKey: "druid/segments"
  druid.s3.accessKey: "minio"
  druid.s3.secretKey: "minio123"
  druid.s3.protocol: "http"
  druid.s3.enablePathStyleAccess: "true"
  druid.s3.endpoint.signingRegion: "us-east-1"
  druid.s3.endpoint.url: "http://myminio-hl.demo.svc.cluster.local:9000/"

Let’s create the deep-storage-config Secret shown above:

$ kubectl create -f https://github.com/kubedb/docs/raw/v2024.11.8-rc.0/docs/guides/druid/backup/auto-backup/examples/deep-storage-config.yaml
secret/deep-storage-config created

Let’s deploy a sample Druid database and insert some data into it.

Create Druid CR:

Below is the YAML of a sample Druid CRD that we are going to create for this tutorial:

apiVersion: kubedb.com/v1alpha2
kind: Druid
metadata:
  name: sample-druid
  namespace: demo
  annotations:
    blueprint.kubestash.com/name: druid-default-backup-blueprint
    blueprint.kubestash.com/namespace: demo
spec:
  version: 30.0.0
  deepStorage:
    type: s3
    configSecret:
      name: deep-storage-config
  topology:
    routers:
      replicas: 1
  deletionPolicy: WipeOut

Here,

.spec.annotations.blueprint.kubestash.com/name: druid-default-backup-blueprint specifies the name of the BackupBlueprint that will use in backup.
.spec.annotations.blueprint.kubestash.com/namespace: demo specifies the name of the namespace where the BackupBlueprint resides.

Create the above Druid CR,

$ kubectl apply -f https://github.com/kubedb/docs/raw/v2024.11.8-rc.0/docs/guides/druid/backup/auto-backup/examples/sample-druid.yaml
druid.kubedb.com/sample-druid created

Verify BackupConfiguration

If everything goes well, KubeStash should create a BackupConfiguration for our Druid in demo namespace and the phase of that BackupConfiguration should be Ready. Verify the BackupConfiguration object by the following command,

$ kubectl get backupconfiguration -n demo
NAME                      PHASE   PAUSED   AGE
appbinding-sample-druid   Ready            8m48s

Now, let’s check the YAML of the BackupConfiguration.

$ kubectl get backupconfiguration -n demo appbinding-sample-druid  -o yaml

apiVersion: core.kubestash.com/v1alpha1
kind: BackupConfiguration
metadata:
  creationTimestamp: "2024-09-19T10:30:46Z"
  finalizers:
    - kubestash.com/cleanup
  generation: 1
  labels:
    app.kubernetes.io/managed-by: kubestash.com
    kubestash.com/invoker-name: druid-default-backup-blueprint
    kubestash.com/invoker-namespace: demo
  name: appbinding-sample-druid
  namespace: demo
  resourceVersion: "1594861"
  uid: 8c5a21cd-780b-4b67-b95a-d6338d038dd4
spec:
  backends:
    - name: gcs-backend
      retentionPolicy:
        name: demo-retention
        namespace: demo
      storageRef:
        name: gcs-storage
        namespace: demo
  sessions:
    - addon:
        name: druid-addon
        tasks:
          - name: mysql-metadata-storage-backup
      name: frequent-backup
      repositories:
        - backend: gcs-backend
          directory: /default-blueprint
          encryptionSecret:
            name: encrypt-secret
            namespace: demo
          name: default-blueprint
      scheduler:
        jobTemplate:
          backoffLimit: 1
          template:
            controller: {}
            metadata: {}
            spec:
              resources: {}
        schedule: '*/5 * * * *'
      sessionHistoryLimit: 3
  target:
    apiGroup: kubedb.com
    kind: Druid
    name: sample-druid
    namespace: demo
status:
  backends:
    - name: gcs-backend
      ready: true
      retentionPolicy:
        found: true
        ref:
          name: demo-retention
          namespace: demo
      storage:
        phase: Ready
        ref:
          name: gcs-storage
          namespace: demo

Notice the spec.backends, spec.sessions and spec.target sections, KubeStash automatically resolved those info from the BackupBluePrint and created above BackupConfiguration.

Verify BackupSession:

KubeStash triggers an instant backup as soon as the BackupConfiguration is ready. After that, backups are scheduled according to the specified schedule.

$ kubectl get backupsession -n demo -w

NAME                                                 INVOKER-TYPE          INVOKER-NAME              PHASE       DURATION   AGE
appbinding-sample-druid-frequent-backup-1726741846   BackupConfiguration   appbinding-sample-druid   Succeeded   28s        10m
appbinding-sample-druid-frequent-backup-1726742101   BackupConfiguration   appbinding-sample-druid   Succeeded   35s        6m37s
appbinding-sample-druid-frequent-backup-1726742400   BackupConfiguration   appbinding-sample-druid   Succeeded   29s        98s

We can see from the above output that the backup session has succeeded. Now, we are going to verify whether the backed up data has been stored in the backend.

Verify Backup:

Once a backup is complete, KubeStash will update the respective Repository CR to reflect the backup. Check that the repository default-blueprint has been updated by the following command,

$ kubectl get repository -n demo default-blueprint
NAME                INTEGRITY   SNAPSHOT-COUNT   SIZE        PHASE   LAST-SUCCESSFUL-BACKUP   AGE
default-blueprint   true        3                1.757 MiB   Ready   2m23s                    11m

At this moment we have one Snapshot. Run the following command to check the respective Snapshot which represents the state of a backup run for an application.

$ kubectl get snapshots -n demo -l=kubestash.com/repo-name=default-blueprint
NAME                                                              REPOSITORY          SESSION           SNAPSHOT-TIME          DELETION-POLICY   PHASE       AGE
default-blueprint-appbinding-samruid-frequent-backup-1726741846   default-blueprint   frequent-backup   2024-09-19T10:30:56Z   Delete            Succeeded   11m
default-blueprint-appbinding-samruid-frequent-backup-1726742101   default-blueprint   frequent-backup   2024-09-19T10:35:01Z   Delete            Succeeded   7m49s
default-blueprint-appbinding-samruid-frequent-backup-1726742400   default-blueprint   frequent-backup   2024-09-19T10:40:00Z   Delete            Succeeded   2m50s

Note: KubeStash creates a Snapshot with the following labels:
kubestash.com/app-ref-kind: <target-kind>
kubestash.com/app-ref-name: <target-name>
kubestash.com/app-ref-namespace: <target-namespace>
kubestash.com/repo-name: <repository-name>
These labels can be used to watch only the Snapshots related to our target Database or Repository.

If we check the YAML of the Snapshot, we can find the information about the backed up components of the Database.

$ kubectl get snapshots -n demo default-blueprint-appbinding-samruid-frequent-backup-1726741846 -oyaml

apiVersion: storage.kubestash.com/v1alpha1
kind: Snapshot
metadata:
  creationTimestamp: "2024-09-19T10:30:56Z"
  finalizers:
    - kubestash.com/cleanup
  generation: 1
  labels:
    kubestash.com/app-ref-kind: Druid
    kubestash.com/app-ref-name: sample-druid
    kubestash.com/app-ref-namespace: demo
    kubestash.com/repo-name: default-blueprint
  annotations:
    kubedb.com/db-version: 30.0.0
  name: default-blueprint-appbinding-samruid-frequent-backup-1726741846
  namespace: demo
  ownerReferences:
    - apiVersion: storage.kubestash.com/v1alpha1
      blockOwnerDeletion: true
      controller: true
      kind: Repository
      name: default-blueprint
      uid: 7ced6866-349b-48c0-821d-d1ecfee1c80e
  resourceVersion: "1594964"
  uid: 8ec9bb0c-590c-47b8-944b-22af92d62470
spec:
  appRef:
    apiGroup: kubedb.com
    kind: Druid
    name: sample-druid
    namespace: demo
  backupSession: appbinding-sample-druid-frequent-backup-1726741846
  deletionPolicy: Delete
  repository: default-blueprint
  session: frequent-backup
  snapshotID: 01J84XBGGY0JKG7JKTRCGV3HYM
  type: FullBackup
  version: v1
status:
  components:
    dump:
      driver: Restic
      duration: 9.614587405s
      integrity: true
      path: repository/v1/frequent-backup/dump
      phase: Succeeded
      resticStats:
        - hostPath: dumpfile.sql
          id: 8f2b5f5d8a7a18304917e2d4c5a3636f8927085b15c652c35d5fca4a9988515d
          size: 3.750 MiB
          uploaded: 3.751 MiB
      size: 674.017 KiB

KubeStash uses the mysqldump/postgresdump command to take backups of metadata storage of target Druid databases. Therefore, the component name for logical backups is set as dump.

Now, if we navigate to the GCS bucket, we will see the backed up data stored in the /blueprint/default-blueprint/repository/v1/frequent-backup/dump directory. KubeStash also keeps the backup for Snapshot YAMLs, which can be found in the blueprint/default-blueprintrepository/snapshots directory.

Note: KubeStash stores all dumped data encrypted in the backup directory, meaning it remains unreadable until decrypted.

Auto-backup with custom configurations

In this section, we are going to backup a Druid database of demo namespace. We are going to use the custom configurations which will be specified in the BackupBlueprint CR.

Prepare Backup Blueprint

A BackupBlueprint allows you to specify a template for the Repository,Session or Variables of BackupConfiguration in a Kubernetes native way.

Now, we have to create a BackupBlueprint CR with a blueprint for BackupConfiguration object.

apiVersion: core.kubestash.com/v1alpha1
kind: BackupBlueprint
metadata:
  name: druid-customize-backup-blueprint
  namespace: demo
spec:
  usagePolicy:
    allowedNamespaces:
      from: All
  backupConfigurationTemplate:
    deletionPolicy: OnDelete
    # ============== Blueprint for Backends of BackupConfiguration  =================
    backends:
      - name: gcs-backend
        storageRef:
          namespace: demo
          name: gcs-storage
        retentionPolicy:
          name: demo-retention
          namespace: demo
    # ============== Blueprint for Sessions of BackupConfiguration  =================
    sessions:
      - name: frequent-backup
        sessionHistoryLimit: 3
        scheduler:
          schedule: ${schedule}
          jobTemplate:
            backoffLimit: 1
        repositories:
          - name: ${repoName}
            backend: gcs-backend
            directory: ${namespace}/${targetName}
            encryptionSecret:
              name: encrypt-secret
              namespace: demo
        addon:
          name: druid-addon
          tasks:
            - name: mysql-metadata-storage-backup
              params:
                databases: ${targetedDatabases}

Note that we have used some variables (format: ${<variable name>}) in different fields. KubeStash will substitute these variables with values from the respective target’s annotations. You’re free to use any variables you like.

Here,

.spec.backupConfigurationTemplate.backends[*].storageRef refers our earlier created gcs-storage backupStorage.
.spec.backupConfigurationTemplate.sessions[*]:
- .schedule defines ${schedule} variable, which determines the time interval for the backup.
- .repositories[*].name defines the ${repoName} variable, which specifies the name of the backup Repository.
- .repositories[*].directory defines two variables, ${namespace} and ${targetName}, which are used to determine the path where the backup will be stored.
- .addon.tasks[*]databases defines ${targetedDatabases} variable, which identifies list of databases to backup.

Note: To create BackupBlueprint for druid with PostgreSQL as metadata storage just update spec.sessions[*].addon.tasks.name to postgres-metadata-storage-restore

Let’s create the BackupBlueprint we have shown above,

$ kubectl apply -f https://github.com/kubedb/docs/raw/v2024.11.8-rc.0/docs/guides/druid/backup/auto-backup/examples/customize-backupblueprint.yaml
backupblueprint.core.kubestash.com/druid-customize-backup-blueprint created

Now, we are ready to backup our Druid databases using few annotations. You can check available auto-backup annotations for a databases from here.

Create Database

Before proceeding to creating a new Druid database, let us clean up the resources of the previous step:

kubectl delete backupblueprints.core.kubestash.com  -n demo druid-default-backup-blueprint
kubectl delete druid -n demo sample-druid

Now, we are going to create a new Druid CR in demo namespace. Below is the YAML of the Druid object that we are going to create,

apiVersion: kubedb.com/v1alpha2
kind: Druid
metadata:
  name: sample-druid-2
  namespace: demo
  annotations:
    blueprint.kubestash.com/name: druid-customize-backup-blueprint
    blueprint.kubestash.com/namespace: demo
    variables.kubestash.com/schedule: "*/10 * * * *"
    variables.kubestash.com/repoName: customize-blueprint
    variables.kubestash.com/namespace: demo
    variables.kubestash.com/targetName: sample-druid-2
    variables.kubestash.com/targetedDatabases: druid
spec:
  version: 30.0.0
  deepStorage:
    type: s3
    configSecret:
      name: deep-storage-config
  topology:
    routers:
      replicas: 1
  deletionPolicy: WipeOut

Notice the metadata.annotations field, where we have defined the annotations related to the automatic backup configuration. Specifically, we’ve set the BackupBlueprint name as druid-customize-backup-blueprint and the namespace as demo. We have also provided values for the blueprint template variables, such as the backup schedule, repositoryName, namespace, targetName, and targetedDatabases. These annotations will be used to create a BackupConfiguration for this Druid database.

Let’s create the Druid we have shown above,

$ kubectl apply -f https://github.com/kubedb/docs/raw/v2024.11.8-rc.0/docs/guides/druid/backup/auto-backup/examples/sample-druid-2.yaml
druid.kubedb.com/sample-druid-2 created

Verify BackupConfiguration

$ kubectl get backupconfiguration -n demo
NAME                        PHASE   PAUSED   AGE
appbinding-sample-druid-2   Ready            2m50m

Now, let’s check the YAML of the BackupConfiguration.

$ kubectl get backupconfiguration -n demo appbinding-sample-druid-2  -o yaml

apiVersion: core.kubestash.com/v1alpha1
kind: BackupConfiguration
metadata:
  creationTimestamp: "2024-09-19T11:00:56Z"
  finalizers:
    - kubestash.com/cleanup
  generation: 1
  labels:
    app.kubernetes.io/managed-by: kubestash.com
    kubestash.com/invoker-name: druid-customize-backup-blueprint
    kubestash.com/invoker-namespace: demo
  name: appbinding-sample-druid-2
  namespace: demo
  resourceVersion: "1599083"
  uid: 1c979902-33cd-4212-ae6d-ea4e4198bcaf
spec:
  backends:
    - name: gcs-backend
      retentionPolicy:
        name: demo-retention
        namespace: demo
      storageRef:
        name: gcs-storage
        namespace: demo
  sessions:
    - addon:
        name: druid-addon
        tasks:
          - name: mysql-metadata-storage-backup
            params:
              databases: druid
      name: frequent-backup
      repositories:
        - backend: gcs-backend
          directory: demo/sample-druid-2
          encryptionSecret:
            name: encrypt-secret
            namespace: demo
          name: customize-blueprint
      scheduler:
        jobTemplate:
          backoffLimit: 1
          template:
            controller: {}
            metadata: {}
            spec:
              resources: {}
        schedule: '*/10 * * * *'
      sessionHistoryLimit: 3
  target:
    apiGroup: kubedb.com
    kind: Druid
    name: sample-druid-2
    namespace: demo
status:
  backends:
    - name: gcs-backend
      ready: true
      retentionPolicy:
        found: true
        ref:
          name: demo-retention
          namespace: demo
      storage:
        phase: Ready
        ref:
          name: gcs-storage
          namespace: demo

Notice the spec.backends, spec.sessions and spec.target sections, KubeStash automatically resolved those info from the BackupBluePrint and created above BackupConfiguration.

Verify BackupSession:

KubeStash triggers an instant backup as soon as the BackupConfiguration is ready. After that, backups are scheduled according to the specified schedule.

$ kubectl get backupsession -n demo -w

NAME                                                   INVOKER-TYPE          INVOKER-NAME                PHASE       DURATION   AGE
appbinding-sample-druid-2-frequent-backup-1726743656   BackupConfiguration   appbinding-sample-druid-2   Succeeded   30s        2m32s

We can see from the above output that the backup session has succeeded. Now, we are going to verify whether the backed up data has been stored in the backend.

Verify Backup:

Once a backup is complete, KubeStash will update the respective Repository CR to reflect the backup. Check that the repository customize-blueprint has been updated by the following command,

$ kubectl get repository -n demo customize-blueprint
NAME                         INTEGRITY   SNAPSHOT-COUNT   SIZE    PHASE   LAST-SUCCESSFUL-BACKUP   AGE
customize-blueprint          true        1                806 B   Ready   8m27s                    9m18s

At this moment we have one Snapshot. Run the following command to check the respective Snapshot which represents the state of a backup run for an application.

$ kubectl get snapshots -n demo -l=kubestash.com/repo-name=customize-blueprint
NAME                                                              REPOSITORY            SESSION           SNAPSHOT-TIME          DELETION-POLICY   PHASE       AGE
customize-blueprint-appbinding-sid-2-frequent-backup-1726743656   customize-blueprint   frequent-backup   2024-09-19T11:01:06Z   Delete            Succeeded   2m56s

Note: KubeStash creates a Snapshot with the following labels:
kubestash.com/app-ref-kind: <target-kind>
kubestash.com/app-ref-name: <target-name>
kubestash.com/app-ref-namespace: <target-namespace>
kubestash.com/repo-name: <repository-name>
These labels can be used to watch only the Snapshots related to our target Database or Repository.

If we check the YAML of the Snapshot, we can find the information about the backed up components of the Database.

$ kubectl get snapshots -n demo customize-blueprint-appbinding-sid-2-frequent-backup-1726743656 -oyaml

apiVersion: storage.kubestash.com/v1alpha1
kind: Snapshot
metadata:
  creationTimestamp: "2024-09-19T11:01:06Z"
  finalizers:
    - kubestash.com/cleanup
  generation: 1
  labels:
    kubestash.com/app-ref-kind: Druid
    kubestash.com/app-ref-name: sample-druid-2
    kubestash.com/app-ref-namespace: demo
    kubestash.com/repo-name: customize-blueprint
  annotations:
    kubedb.com/db-version: 30.0.0
  name: customize-blueprint-appbinding-sid-2-frequent-backup-1726743656
  namespace: demo
  ownerReferences:
    - apiVersion: storage.kubestash.com/v1alpha1
      blockOwnerDeletion: true
      controller: true
      kind: Repository
      name: customize-blueprint
      uid: 5eaccae6-046c-4c6a-9b76-087d040f001a
  resourceVersion: "1599190"
  uid: 014c050d-0e91-43eb-b60a-36eefbd4b048
spec:
  appRef:
    apiGroup: kubedb.com
    kind: Druid
    name: sample-druid-2
    namespace: demo
  backupSession: appbinding-sample-druid-2-frequent-backup-1726743656
  deletionPolicy: Delete
  repository: customize-blueprint
  session: frequent-backup
  snapshotID: 01J84Z2R6R64FH8E7QYNNZGC1S
  type: FullBackup
  version: v1
status:
  components:
    dump:
      driver: Restic
      duration: 9.132887467s
      integrity: true
      path: repository/v1/frequent-backup/dump
      phase: Succeeded
      resticStats:
        - hostPath: dumpfile.sql
          id: a1061e74f1ad398a9fe85bcbae34f540f2437a97061fd26c5b3e6bde3b5b7642
          size: 10.859 KiB
          uploaded: 11.152 KiB
      size: 2.127 KiB

KubeStash uses the mysqldump/postgresdump command to take backups of the metadata storage of the target Druid databases. Therefore, the component name for logical backups is set as dump.

Now, if we navigate to the GCS bucket, we will see the backed up data stored in the /blueprint/custom-blueprint/repository/v1/frequent-backup/dump directory. KubeStash also keeps the backup for Snapshot YAMLs, which can be found in the blueprint/custom-blueprint/snapshots directory.

Note: KubeStash stores all dumped data encrypted in the backup directory, meaning it remains unreadable until decrypted.

Cleanup

To cleanup the resources crated by this tutorial, run the following commands,

kubectl delete backupblueprints.core.kubestash.com  -n demo druid-default-backup-blueprint
kubectl delete backupblueprints.core.kubestash.com  -n demo druid-customize-backup-blueprint
kubectl delete backupstorage -n demo gcs-storage
kubectl delete secret -n demo gcs-secret
kubectl delete secret -n demo encrypt-secret
kubectl delete retentionpolicies.storage.kubestash.com -n demo demo-retention
kubectl delete druid -n demo sample-druid
kubectl delete druid -n demo sample-druid-2

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Before You Begin

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Auto-backup with default configurations

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