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Version: v2.8

Backup and Restore Examples

This section contains examples of Backup and Restore custom resources.

The default backup storage location is configured when the rancher-backup operator is installed or upgraded.

Encrypted backups can only be restored if the Restore custom resource uses the same encryption configuration secret that was used to create the backup.

Backup​

This section contains example Backup custom resources.

Note: Refer to the backup config reference page for more information on configuring the options below.

Backup in the Default Location with Encryption​

apiVersion: resources.cattle.io/v1
kind: Backup
metadata:
  name: default-location-encrypted-backup
spec:
  resourceSetName: rancher-resource-set
  encryptionConfigSecretName: encryptionconfig

Recurring Backup in the Default Location​

apiVersion: resources.cattle.io/v1
kind: Backup
metadata:
  name: default-location-recurring-backup
spec:
  resourceSetName: rancher-resource-set
  schedule: "@every 1h"
  retentionCount: 10

Encrypted Recurring Backup in the Default Location​

apiVersion: resources.cattle.io/v1
kind: Backup
metadata:
  name: default-enc-recurring-backup
spec:
  resourceSetName: rancher-resource-set
  encryptionConfigSecretName: encryptionconfig
  schedule: "@every 1h"
  retentionCount: 3

Encrypted Backup in Minio​

apiVersion: resources.cattle.io/v1
kind: Backup
metadata:
  name: minio-backup
spec:
  storageLocation:
    s3:
      credentialSecretName: minio-creds
      credentialSecretNamespace: default
      bucketName: rancherbackups
      endpoint: minio.xip.io
      endpointCA: <base64-encoded-cert>
  resourceSetName: rancher-resource-set
  encryptionConfigSecretName: encryptionconfig

Backup in S3 Using AWS Credential Secret​

apiVersion: resources.cattle.io/v1
kind: Backup
metadata:
  name: s3-backup
spec:
  storageLocation:
    s3:
      credentialSecretName: s3-creds
      credentialSecretNamespace: default
      bucketName: rancher-backups
      folder: ecm1
      region: us-west-2
      endpoint: s3.us-west-2.amazonaws.com
  resourceSetName: rancher-resource-set
  encryptionConfigSecretName: encryptionconfig

Recurring Backup in S3 Using AWS Credential Secret​

apiVersion: resources.cattle.io/v1
kind: Backup
metadata:
  name: s3-recurring-backup
spec:
  storageLocation:
    s3:
      credentialSecretName: s3-creds
      credentialSecretNamespace: default
      bucketName: rancher-backups
      folder: ecm1
      region: us-west-2
      endpoint: s3.us-west-2.amazonaws.com
  resourceSetName: rancher-resource-set
  encryptionConfigSecretName: encryptionconfig
  schedule: "@every 1h"
  retentionCount: 10

Backup from EC2 Nodes with IAM Permission to Access S3​

This example shows that the AWS credential secret does not have to be provided to create a backup if the nodes running rancher-backup have these permissions for access to S3.

apiVersion: resources.cattle.io/v1
kind: Backup
metadata:
  name: s3-iam-backup
spec:
  storageLocation:
    s3:
      bucketName: rancher-backups
      folder: ecm1
      region: us-west-2
      endpoint: s3.us-west-2.amazonaws.com
  resourceSetName: rancher-resource-set
  encryptionConfigSecretName: encryptionconfig

Restore​

This section contains example Restore custom resources.

Note: Refer to the restore config reference page for more information on configuring the options below.

Restore Using the Default Backup File Location​

apiVersion: resources.cattle.io/v1
kind: Restore
metadata:
  name: restore-default
spec:
  backupFilename: default-location-recurring-backup-752ecd87-d958-4d20-8350-072f8d090045-2020-09-26T12-29-54-07-00.tar.gz
#  encryptionConfigSecretName: test-encryptionconfig

Restore for Rancher Migration​

apiVersion: resources.cattle.io/v1
kind: Restore
metadata:
  name: restore-migration
spec:
  backupFilename: backup-b0450532-cee1-4aa1-a881-f5f48a007b1c-2020-09-15T07-27-09Z.tar.gz
  prune: false
  storageLocation:
    s3:
      credentialSecretName: s3-creds
      credentialSecretNamespace: default
      bucketName: rancher-backups
      folder: ecm1
      region: us-west-2
      endpoint: s3.us-west-2.amazonaws.com

Restore from Encrypted Backup​

apiVersion: resources.cattle.io/v1
kind: Restore
metadata:
  name: restore-encrypted
spec:
  backupFilename: default-test-s3-def-backup-c583d8f2-6daf-4648-8ead-ed826c591471-2020-08-24T20-47-05Z.tar.gz
  encryptionConfigSecretName: encryptionconfig

Restore an Encrypted Backup from Minio​

apiVersion: resources.cattle.io/v1
kind: Restore
metadata:
  name: restore-minio
spec:
  backupFilename: default-minio-backup-demo-aa5c04b7-4dba-4c48-9ac4-ab7916812eaa-2020-08-30T13-18-17-07-00.tar.gz
  storageLocation:
    s3:
      credentialSecretName: minio-creds
      credentialSecretNamespace: default
      bucketName: rancherbackups
      endpoint: minio.xip.io
      endpointCA: <base64-encoded-cert>
  encryptionConfigSecretName: test-encryptionconfig

Restore from Backup Using an AWS Credential Secret to Access S3​

apiVersion: resources.cattle.io/v1
kind: Restore
metadata:
  name: restore-s3-demo
spec:
  backupFilename: test-s3-recurring-backup-752ecd87-d958-4d20-8350-072f8d090045-2020-09-26T12-49-34-07-00.tar.gz.enc
  storageLocation:
    s3:
      credentialSecretName: s3-creds
      credentialSecretNamespace: default
      bucketName: rancher-backups
      folder: ecm1
      region: us-west-2
      endpoint: s3.us-west-2.amazonaws.com
  encryptionConfigSecretName: test-encryptionconfig

Restore from EC2 Nodes with IAM Permissions to Access S3​

This example shows that the AWS credential secret does not have to be provided to restore from backup if the nodes running rancher-backup have these permissions for access to S3.

apiVersion: resources.cattle.io/v1
kind: Restore
metadata:
  name: restore-s3-demo
spec:
  backupFilename: default-test-s3-recurring-backup-84bf8dd8-0ef3-4240-8ad1-fc7ec308e216-2020-08-24T10#52#44-07#00.tar.gz
  storageLocation:
    s3:
      bucketName: rajashree-backup-test
      folder: ecm1
      region: us-west-2
      endpoint: s3.us-west-2.amazonaws.com
  encryptionConfigSecretName: test-encryptionconfig

Example EncryptionConfiguration​

The snippets below demonstrate two different types of secrets and their relevance with respect to Backup and Restore of custom resources. Creating the secret can be done with the following command:

kubectl create secret generic example-encryptionconfig \
  --from-file=./encryption-provider-config.yaml \
  -n cattle-resources-system

The first example is that of a secret used to encrypt the backup files. The backup operator will read the contents of the encryption-provider-config.yaml key, which contains the definition of an EncryptionConfiguration resource encoded as Base64.

The second example is that of the Kubernetes EncryptionConfiguration resource itself, being the plain-text form of the Base64-encoded content from the first example. This resource is also used to encrypt secrets when stored in etcd and general cases of Encryption at Rest in Kubernetes. More information on that can be found in the upstream documentation. The keys defined in this resource are essential for accessing the contents of encrypted Backups, particularly during the Restore process. For that reason, these must be kept secure, confidential and easily retrievable.

apiVersion: v1
data:
  encryption-provider-config.yaml: 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
kind: Secret
metadata:
  name: example-encryptionconfig
  namespace: cattle-resources-system
type: Opaque
apiVersion: apiserver.config.k8s.io/v1
kind: EncryptionConfiguration
resources:
  - resources:
      - secrets
    providers:
      - aesgcm:
          keys:
            - name: key1
              secret: c2VjcmV0IGlzIHNlY3VyZQ==
            - name: key2
              secret: dGhpcyBpcyBwYXNzd29yZA==
      - aescbc:
          keys:
            - name: key1
              secret: c2VjcmV0IGlzIHNlY3VyZQ==
            - name: key2
              secret: dGhpcyBpcyBwYXNzd29yZA==
      - secretbox:
          keys:
            - name: key1
              secret: YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXoxMjM0NTY=