Upgrade PGO to 5.7.0; Add option to disable backups (#191)

* Upgrade PGO to 5.7.0; Add option to disable backups
* disable backups by default
* update PGO version in the docs

Author: sunu

docs/helm-install.md

@@ -3,7 +3,7 @@
 0. `eoapi-k8s` depends on the [Crunchydata Postgresql Operator](https://access.crunchydata.com/documentation/postgres-operator/latest/installation/helm). Install that first:
 
    ```bash
-   $ helm install --set disable_check_for_upgrades=true pgo oci://registry.developers.crunchydata.com/crunchydata/pgo --version 5.5.2
+   $ helm install --set disable_check_for_upgrades=true pgo oci://registry.developers.crunchydata.com/crunchydata/pgo --version 5.7.0
    ```
 
 1. Add the eoapi repo from https://devseed.com/eoapi-k8s/:

helm-chart/postgrescluster/Chart.yaml

@@ -3,6 +3,8 @@ name: postgrescluster
 description: A Helm chart for eoapi database dep for k8s
 type: application
 # The version below should match the version on the PostgresCluster CRD
-version: 5.5.3
-appVersion: 5.5.3
+# from CrunchyData's Postgres Operator
+# https://access.crunchydata.com/documentation/postgres-operator/latest/releases
+version: 5.7.0
+appVersion: 5.7.0
 force: true

helm-chart/postgrescluster/templates/postgres.yaml

@@ -36,6 +36,7 @@ spec:
           memory: {{ default "" .Values.instanceMemory | quote }}
       {{- end }}
   {{- end }}
+  {{- if .Values.backupsEnabled }}
   backups:
     pgbackrest:
       {{- if .Values.imagePgBackRest }}
@@ -142,6 +143,7 @@ spec:
               requests:
                 storage: {{ default "1Gi" .Values.backupsSize | quote }}
       {{- end }}
+  {{- end }}
   {{- if or .Values.pgBouncerReplicas .Values.pgBouncerConfig }}
   proxy:
     pgBouncer:

helm-chart/postgrescluster/values.yaml

@@ -173,6 +173,15 @@ postgresVersion: 16
 # Backups / pgBackRest Settings #
 #################################
 
+# backupsEnabled sets whether pgBackRest backups are enabled.
+# This is disabled by default.
+# Disabling backups is only supported on CrunchyData Postgres Operator v5.7.0 and above.
+# If you are using a version below v5.7.0, you will need to enable backups.
+# If enabled, please carefully review the pgBackRest config below.
+# Check out CrunchyData's Postgres Operator docs for more info:
+# https://access.crunchydata.com/documentation/postgres-operator/v5/tutorials/backups-disaster-recovery/backups
+backupsEnabled: false
+
 # backupsSize sets the storage size of the backups to a volume in Kubernetes.
 # can be overridden by "pgBackRestConfig", if set. Defaults to the value below.
 # backupsSize: 1Gi