OADP features and plug-ins

OADP features and plug-ins

OpenShift API for Data Protection (OADP) features provide options for backing up and restoring applications.

The default plug-ins enable Velero to integrate with certain cloud providers and to back up and restore OKD resources.

OADP features

OpenShift API for Data Protection (OADP) supports the following features:

Backup

You can back up all resources in your cluster or you can filter the resources by type, namespace, or label.

OADP backs up Kubernetes objects and internal images by saving them as an archive file on object storage. OADP backs up persistent volumes (PVs) by creating snapshots with the native cloud snapshot API or with the Container Storage Interface (CSI). For cloud providers that do not support snapshots, OADP backs up resources and PV data with Restic.

Restore

You can restore resources and PVs from a backup. You can restore all objects in a backup or filter the restored objects by namespace, PV, or label.

Schedule

You can schedule backups at specified intervals.

Hooks

You can use hooks to run commands in a container on a pod, for example, fsfreeze to freeze a file system. You can configure a hook to run before or after a backup or restore. Restore hooks can run in an init container or in the application container.

OADP plug-ins

The OpenShift API for Data Protection (OADP) provides default Velero plug-ins that are integrated with storage providers to support backup and snapshot operations. You can create custom plug-ins based on the Velero plug-ins.

OADP also provides plug-ins for OKD resource backups, OpenShift Virtualization resource backups, and Container Storage Interface (CSI) snapshots.

Table 1. OADP plug-ins
OADP plug-in	Function	Storage location
`aws`	Backs up and restores Kubernetes objects.	AWS S3
`aws`	Backs up and restores volumes with snapshots.	AWS EBS
`azure`	Backs up and restores Kubernetes objects.	Microsoft Azure Blob storage
`azure`	Backs up and restores volumes with snapshots.	Microsoft Azure Managed Disks
`gcp`	Backs up and restores Kubernetes objects.	Google Cloud Storage
`gcp`	Backs up and restores volumes with snapshots.	Google Compute Engine Disks
`openshift`	Backs up and restores OKD resources. ^[1]	Object store
`kubevirt`	Backs up and restores OpenShift Virtualization resources. ^[2]	Object store
`csi`	Backs up and restores volumes with CSI snapshots. ^[3]	Cloud storage that supports CSI snapshots

Mandatory.
Virtual machine disks are backed up with CSI snapshots or Restic.
The csi plug-in uses the Velero CSI beta snapshot API.

About OADP Velero plug-ins

You can configure two types of plug-ins when you install Velero:

Default cloud provider plug-ins
Custom plug-ins

Both types of plug-in are optional, but most users configure at least one cloud provider plug-in.

Default Velero cloud provider plug-ins

You can install any of the following default Velero cloud provider plug-ins when you configure the oadp_v1alpha1_dpa.yaml file during deployment:

aws (Amazon Web Services)
gcp (Google Cloud Platform)
azure (Microsoft Azure)
openshift (OpenShift Velero plug-in)
csi (Container Storage Interface)
kubevirt (KubeVirt)

You specify the desired default plug-ins in the oadp_v1alpha1_dpa.yaml file during deployment.

Example file

The following .yaml file installs the openshift, aws, azure, and gcp plug-ins:

 apiVersion: oadp.openshift.io/v1alpha1
 kind: DataProtectionApplication
 metadata:
   name: dpa-sample
 spec:
   configuration:
     velero:
       defaultPlugins:
       - openshift
       - aws
       - azure
       - gcp

Custom Velero plug-ins

You can install a custom Velero plug-in by specifying the plug-in image and name when you configure the oadp_v1alpha1_dpa.yaml file during deployment.

You specify the desired custom plug-ins in the oadp_v1alpha1_dpa.yaml file during deployment.

Example file

The following .yaml file installs the default openshift, azure, and gcp plug-ins and a custom plug-in that has the name custom-plugin-example and the image quay.io/example-repo/custom-velero-plugin:

apiVersion: oadp.openshift.io/v1alpha1
kind: DataProtectionApplication
metadata:
 name: dpa-sample
spec:
 configuration:
   velero:
     defaultPlugins:
     - openshift
     - azure
     - gcp
     customPlugins:
     - name: custom-plugin-example
       image: quay.io/example-repo/custom-velero-plugin

OADP support for IBM Power Systems and IBM Z

OpenShift API for Data Protection (OADP) is platform neutral. The information that follows relates only to IBM Power Systems and to IBM Z.

OADP 1.1.0 was tested successfully against OKD 4.11 for both IBM Power Systems and IBM Z. The sections that follow give testing and support information for OADP 1.1.0 in terms of backup locations for these systems.

OADP support for target backup locations using IBM Power Systems

IBM Power Systems (“cloud systems”) running with OKD 4.11 and OpenShift API for Data Protection (OADP) 1.1.0 was tested successfully against an AWS S3 backup location target. Although the test involved only an AWS S3 target, Red Hat supports running IBM Power Systems with OKD 4.11 and OADP 1.1.0 against all non-AWS S3 backup location targets as well.

OADP testing and support for target backup locations using IBM Z

IBM Z (“bare metal”) running with OKD 4.11 and OpenShift API for Data Protection (OADP) 1.1.0 was tested successfully against an AWS S3 backup location target. Although the test involved only an AWS S3 target, Red Hat supports running IBM Z with OKD 4.11 and OADP 1.1.0 against all non-AWS S3 backup location targets as well.

OADP features and plugins