This section describes the deployment procedures for the continuous recovery method and the streaming replication method of the hot standby configuration.

Custom resource definitions for FEPCluster in the production environment do not have parameters that are only used in hot standby configurations. When using the continuous recovery method, define the FEPCluster custom resource in the disaster recovery environment as follows.

apiVersion: fep.fujitsu.io/v2
kind: FEPCluster
metadata:
 …
spec:
  fep:
    standby:
      enable: true
      method: archive-recovery
      pgBackrestConf: |
        [global]
        log-path=/database/log/backup
        repo1-type=azure
        repo1-path=< Backup path of primary/ cluster from which data is to be restored>
        repo1-azure-account=<my storage account>
        repo1-azure-container=fepbackups
        repo1-azure-key=<my storage account key >
…

When using the streaming replication method, define as follows.

apiVersion: fep.fujitsu.io/v2
kind: FEPCluster
metadata:
...
spec:
  fep:
    standby:
      enable: true
      method: streaming
      streaming:
        host: <LoadBalancer IP>
        port: 27500
      pgBackrestConf: |
        [global]
        log-path=/database/log/backup
        repo1-type=azure
        repo1-path=< Backup path of primary/ cluster from which data is to be restored>
        repo1-azure-account=<my storage account>
        repo1-azure-container=fepbackups
        repo1-azure-key=<my storage account key >
...

For streaming replication, FEPClusterCR is defined as above, but a separate LoadBalancer must be deployed.

kind: Service
apiVersion: v1
metadata:
  name: my-fep-internal-svc
  namespace: sample-namespace
  annotations:
    service.beta.kubernetes.io/azure-load-balancer-internal: 'true'
spec:
  ports:
    - protocol: TCP
      port: 27500
  type: LoadBalancer
  selector:
    app: <my-fep-cluster>-sts
    feprole: master

The parameters of FEPClusterCR in the disaster recovery environment that are required to realize a hot standby configuration are shown below. For parameter details, refer to "FEPCluster Parameters" in the Reference.

• spec.fep.standby.enable

• spec.fep.standby.method

• spec.fep.standby.pgBackrestConf

• spec.fep.standby.streaming.host

• spec.fep.standby.streaming.port