cluster-example-replica-streaming.yaml

apiVersion: postgresql.cnpg.io/v1
kind: Cluster
metadata:
  name: cluster-replica-example
spec:
  instances: 1

  bootstrap:
    pg_basebackup:
      source: cluster-example

  replica:
    enabled: true
    source: cluster-example

  storage:
    size: 1Gi
  # note the namespace 'default' in the host name `cluster-example-rw.default.svc`
  # remember to change accordingly with the namespace of the main cluster
  externalClusters:
  - name: cluster-example
    connectionParameters:
      host: cluster-example-rw.default.svc
      user: streaming_replica
      sslmode: verify-full
      dbname: postgres
    # NOTE: if this cluster is created in a different namespace than the main cluster
    # remember to create the `-replication` and `-ca` secrets in the follower namespace
    # before creating the follower cluster
    sslKey:
      name: cluster-example-replication
      key: tls.key
    sslCert:
      name: cluster-example-replication
      key: tls.crt
    sslRootCert:
      name: cluster-example-ca
      key: ca.crt