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Velero is a tool used to backup and migrate Kubernetes applications. Here are the steps to use Oracle Cloud Object Storage as a destination for Velero backups.
latest release of Velero to your development environment. This includes the
velero CLI utility and example Kubernetes manifest files. For example:
We strongly recommend that you use an official release of Velero. The tarballs for each release contain the velero command-line client. The code in the main branch of the Velero repository is under active development and is not guaranteed to be stable!
Untar the release in your
tar -xzvf <RELEASE-TARBALL-NAME>.tar.gz
You may choose to rename the directory
velero for the sake of simplicity:
mv velero-v1.0.0-linux-amd64 velero
Add it to your PATH:
velero to confirm the CLI has been installed correctly. You should see an output like this:
$ velero Velero is a tool for managing disaster recovery, specifically for Kubernetes cluster resources. It provides a simple, configurable, and operationally robust way to back up your application state and associated data. If you're familiar with kubectl, Velero supports a similar model, allowing you to execute commands such as 'velero get backup' and 'velero create schedule'. The same operations can also be performed as 'velero backup get' and 'velero schedule create'. Usage: velero [command]
Oracle Object Storage provides an API to enable interoperability with Amazon S3. To use this Amazon S3 Compatibility API, you need to generate the signing key required to authenticate with Amazon S3. This special signing key is an Access Key/Secret Key pair. Follow these steps to create a Customer Secret Key. Refer to this link for more information about Working with Customer Secret Keys.
Create a Velero credentials file with your Customer Secret Key:
$ vi credentials-velero [default] aws_access_key_id=bae031188893d1eb83719648790ac850b76c9441 aws_secret_access_key=MmY9heKrWiNVCSZQ2Mf5XTJ6Ys93Bw2d2D6NMSTXZlk=
Create an Oracle Cloud Object Storage bucket called
velero in the root compartment of your Oracle Cloud tenancy. Refer to this page for
more information about creating a bucket with Object Storage.
You will need the following information to install Velero into your Kubernetes cluster with Oracle Object Storage as the Backup Storage provider:
velero install \ --provider [provider name] \ --bucket [bucket name] \ --prefix [tenancy name] \ --use-volume-snapshots=false \ --secret-file [secret file location] \ --backup-location-config region=[region],s3ForcePathStyle="true",s3Url=[storage API endpoint]
--providerBecause we are using the S3-compatible API, we will use
awsas our provider.
--bucketThe name of the bucket created in Oracle Object Storage - in our case this is named
--prefixThe name of your Oracle Cloud tenancy - in our case this is named
--use-volume-snapshots=falseVelero does not currently have a volume snapshot plugin for Oracle Cloud creating volume snapshots is disabled.
--secret-fileThe path to your
--backup-location-configThe path to your Oracle Object Storage bucket. This consists of your
regionwhich corresponds to your Oracle Cloud region name ( List of Oracle Cloud Regions) and the
s3Url, the S3-compatible API endpoint for Oracle Object Storage based on your region:
velero install \ --provider aws \ --bucket velero \ --prefix oracle-cloudnative \ --use-volume-snapshots=false \ --secret-file /Users/mboxell/bin/velero/credentials-velero \ --backup-location-config region=us-phoenix-1,s3ForcePathStyle="true",s3Url=https://oracle-cloudnative.compat.objectstorage.us-phoenix-1.oraclecloud.com
This will create a
velero namespace in your cluster along with a number of CRDs, a ClusterRoleBinding, ServiceAccount, Secret, and Deployment for Velero. If your pod fails to successfully provision, you can troubleshoot your installation by running:
kubectl logs [velero pod name].
To remove Velero from your environment, delete the namespace, ClusterRoleBinding, ServiceAccount, Secret, and Deployment and delete the CRDs, run:
kubectl delete namespace/velero clusterrolebinding/velero kubectl delete crds -l component=velero
This will remove all resources created by
After creating the Velero server in your cluster, try this example:
Start the sample nginx app:
kubectl apply -f examples/nginx-app/base.yaml
This will create an
nginx-example namespace with a
nginx-deployment deployment, and
$ kubectl apply -f examples/nginx-app/base.yaml namespace/nginx-example created deployment.apps/nginx-deployment created service/my-nginx created
You can see the created resources by running
kubectl get all
$ kubectl get all NAME READY STATUS RESTARTS AGE pod/nginx-deployment-67594d6bf6-4296p 1/1 Running 0 20s pod/nginx-deployment-67594d6bf6-f9r5s 1/1 Running 0 20s NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE service/my-nginx LoadBalancer 10.96.69.166 <pending> 80:31859/TCP 21s NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE deployment.apps/nginx-deployment 2 2 2 2 21s NAME DESIRED CURRENT READY AGE replicaset.apps/nginx-deployment-67594d6bf6 2 2 2 21s
Create a backup:
velero backup create nginx-backup --include-namespaces nginx-example
$ velero backup create nginx-backup --include-namespaces nginx-example Backup request "nginx-backup" submitted successfully. Run `velero backup describe nginx-backup` or `velero backup logs nginx-backup` for more details.
At this point you can navigate to appropriate bucket, which we called
velero, in the Oracle Cloud Object Storage console to see the resources backed up using Velero.
Simulate a disaster by deleting the
kubectl delete namespaces nginx-example
$ kubectl delete namespaces nginx-example namespace "nginx-example" deleted
Wait for the namespace to be deleted. To check that the nginx deployment, service, and namespace are gone, run:
kubectl get deployments --namespace=nginx-example kubectl get services --namespace=nginx-example kubectl get namespace/nginx-example
This should return:
No resources found.
Restore your lost resources:
velero restore create --from-backup nginx-backup
$ velero restore create --from-backup nginx-backup Restore request "nginx-backup-20190604102710" submitted successfully. Run `velero restore describe nginx-backup-20190604102710` or `velero restore logs nginx-backup-20190604102710` for more details.
kubectl get namespaces will show that the
nginx-example namespace has been restored along with its contents.
velero restore get to view the list of restored resources. After the restore finishes, the output looks like the following:
$ velero restore get NAME BACKUP STATUS WARNINGS ERRORS CREATED SELECTOR nginx-backup-20190604104249 nginx-backup Completed 0 0 2019-06-04 10:42:39 -0700 PDT <none>
NOTE: The restore can take a few moments to finish. During this time, the
STATUS column reads
After a successful restore, the
STATUS column shows
ERRORS will show
0. All objects in the
nginx-example namespace should be just as they were before you deleted them.
If there are errors or warnings, for instance if the
STATUS column displays
FAILED instead of
InProgress, you can look at them in detail with
velero restore describe <RESTORE_NAME>
Clean up the environment with
kubectl delete -f examples/nginx-app/base.yaml
$ kubectl delete -f examples/nginx-app/base.yaml namespace "nginx-example" deleted deployment.apps "nginx-deployment" deleted service "my-nginx" deleted
If you want to delete any backups you created, including data in object storage, you can run:
velero backup delete BACKUP_NAME
$ velero backup delete nginx-backup Are you sure you want to continue (Y/N)? Y Request to delete backup "nginx-backup" submitted successfully. The backup will be fully deleted after all associated data (disk snapshots, backup files, restores) are removed.
This asks the Velero server to delete all backup data associated with
BACKUP_NAME. You need to do this for each backup you want to permanently delete. A future version of Velero will allow you to delete multiple backups by name or label selector.
Once fully removed, the backup is no longer visible when you run:
velero backup get BACKUP_NAME or more generally
velero backup get:
$ velero backup get nginx-backup An error occurred: backups.velero.io "nginx-backup" not found
$ velero backup get NAME STATUS CREATED EXPIRES STORAGE LOCATION SELECTOR