Installing and configuring the OpenShift API for Data Protection with Multicloud Object Gateway

You configure Multicloud Object Gateway as a backup location. MCG is a component of OpenShift Data Foundation. You configure MCG as a backup location in the custom resource (CR).

You create a Secret for the backup location and then you install the Data Protection Application.

To install the OADP Operator in a restricted network environment, you must first disable the default OperatorHub sources and mirror the Operator catalog. For details, see Using Operator Lifecycle Manager on restricted networks.

You install the OpenShift API for Data Protection (OADP) Operator on OKD 4.13 by using Operator Lifecycle Manager (OLM).

The OADP Operator installs Velero 1.9.

Prerequisites

• You must be logged in as a user with cluster-admin privileges.

Procedure

1. In the OKD web console, click Operators → OperatorHub.

2. Use the Filter by keyword field to find the OADP Operator.

3. Select the OADP Operator and click Install.

4. Click Install to install the Operator in the openshift-adp project.

5. Click Operators → Installed Operators to verify the installation.

You must retrieve the Multicloud Object Gateway (MCG) credentials in order to create a Secret custom resource (CR) for the OpenShift API for Data Protection (OADP).

MCG is a component of OpenShift Data Foundation.

Prerequisites

• Ensure that you have downloaded the pull secret from the Red Hat OpenShift Cluster Manager as shown in Obtaining the installation program in the installation documentation for your platform.

  If you have the pull secret, add the redhat-operators catalog to the OperatorHub custom resource (CR) as shown in Configuring OKD to use Red Hat Operators.

• You must deploy OpenShift Data Foundation by using the appropriate .

Procedure

1. Obtain the S3 endpoint, AWS_ACCESS_KEY_ID, and AWS_SECRET_ACCESS_KEY by running the describe command on the NooBaa custom resource.

2. Create a credentials-velero file:

   You use the credentials-velero file to create a Secret object when you install the Data Protection Application.

You specify backup and snapshot locations and their secrets in the DataProtectionApplication custom resource (CR).

You specify S3-compatible object storage, such as Multicloud Object Gateway, Noobaa, or Minio, as a backup location.

Velero backs up OKD resources, Kubernetes objects, and internal images as an archive file on object storage.

Snapshot locations

If you use Container Storage Interface (CSI) snapshots, you do not need to specify a snapshot location because you will create a VolumeSnapshotClass CR to register the CSI driver.

If you use Restic, you do not need to specify a snapshot location because Restic backs up the file system on object storage.

If the backup and snapshot locations use the same credentials or if you do not require a snapshot location, you create a default Secret.

If the backup and snapshot locations use different credentials, you create two secret objects:

• Custom Secret for the backup location, which you specify in the DataProtectionApplication CR.

• Default Secret for the snapshot location, which is not referenced in the DataProtectionApplication CR.

Creating a default Secret

You create a default Secret if your backup and snapshot locations use the same credentials or if you do not require a snapshot location.

The default name of the Secret is cloud-credentials.

Prerequisites

• Your object storage and cloud storage, if any, must use the same credentials.

• You must configure object storage for Velero.

• You must create a credentials-velero file for the object storage in the appropriate format.

Procedure

• Create a Secret with the default name:

  $ oc create secret generic cloud-credentials -n openshift-adp --from-file cloud=credentials-velero

The Secret is referenced in the spec.backupLocations.credential block of the DataProtectionApplication CR when you install the Data Protection Application.

If your backup and snapshot locations use different credentials, you must create two Secret objects:

• Backup location Secret with a custom name. The custom name is specified in the spec.backupLocations block of the DataProtectionApplication custom resource (CR).

• Snapshot location Secret with the default name, cloud-credentials. This Secret is not specified in the DataProtectionApplication CR.

Procedure

1. Create a credentials-velero file for the snapshot location in the appropriate format for your cloud provider.

2. Create a Secret for the snapshot location with the default name:

   $ oc create secret generic cloud-credentials -n openshift-adp --from-file cloud=credentials-velero

3. Create a credentials-velero file for the backup location in the appropriate format for your object storage.

4. Create a Secret for the backup location with a custom name:

5. Add the Secret with the custom name to the DataProtectionApplication CR, as in the following example:

   apiVersion: oadp.openshift.io/v1alpha1
   kind: DataProtectionApplication
   metadata:
     name: <dpa_sample>
     namespace: openshift-adp
   spec:
       - velero:
           config:
             profile: "default"
             region: minio
             s3Url: <url>
             insecureSkipTLSVerify: "true"
             s3ForcePathStyle: "true"
           provider: aws
           default: true
           credential:
             key: cloud
             name:  <custom_secret> (1)
           objectStorage:
             bucket: <bucket_name>
             prefix: <prefix>

   1	Backup location Secret with custom name.

Setting Velero CPU and memory resource allocations

You set the CPU and memory resource allocations for the Velero pod by editing the DataProtectionApplication custom resource (CR) manifest.

Prerequisites

• You must have the OpenShift API for Data Protection (OADP) Operator installed.

Procedure

• Edit the values in the spec.configuration.velero.podConfig.ResourceAllocations block of the DataProtectionApplication CR manifest, as in the following example:

  apiVersion: oadp.openshift.io/v1beta1
  kind: DataProtectionApplication
  metadata:
    name: <dpa_sample>
  spec:
  ...
    configuration:
      velero:
        podConfig:
          nodeSelector: <node selector> (1)
          resourceAllocations:
            limits:
              cpu: "1"
              memory: 512Mi
            requests:
              cpu: 500m
              memory: 256Mi

  1	Specify the node selector to be supplied to Velero podSpec.

You must enable a self-signed CA certificate for object storage by editing the DataProtectionApplication custom resource (CR) manifest to prevent a certificate signed by unknown authority error.

Prerequisites

• You must have the OpenShift API for Data Protection (OADP) Operator installed.

Procedure

• Edit the spec.backupLocations.velero.objectStorage.caCert parameter and spec.backupLocations.velero.config parameters of the DataProtectionApplication CR manifest:

You install the Data Protection Application (DPA) by creating an instance of the DataProtectionApplication API.

Prerequisites

• You must install the OADP Operator.

• You must configure object storage as a backup location.

• If you use snapshots to back up PVs, your cloud provider must support either a native snapshot API or Container Storage Interface (CSI) snapshots.

• If the backup and snapshot locations use the same credentials, you must create a Secret with the default name, cloud-credentials.

• If the backup and snapshot locations use different credentials, you must create two Secrets:

  • Secret with a custom name for the backup location. You add this Secret to the DataProtectionApplication CR.

  • Secret with the default name, cloud-credentials, for the snapshot location. This is not referenced in the DataProtectionApplication CR.

    If you do not want to specify backup or snapshot locations during the installation, you can create a default Secret with an empty credentials-velero file. If there is no default Secret, the installation will fail.

Procedure

1. Click Operators → Installed Operators and select the OADP Operator.

2. Under Provided APIs, click Create instance in the DataProtectionApplication box.

3. Click Create.

4. Verify the installation by viewing the OADP resources:

   $ oc get all -n openshift-adp

   Example output

Enabling CSI in the DataProtectionApplication CR

You enable the Container Storage Interface (CSI) in the DataProtectionApplication custom resource (CR) in order to back up persistent volumes with CSI snapshots.

Prerequisites

• The cloud provider must support CSI snapshots.

Procedure

• apiVersion: oadp.openshift.io/v1alpha1
  kind: DataProtectionApplication
  ...
  spec:
    configuration:
      velero:
        defaultPlugins:
        - openshift

  1	Add the csi default plugin.