[postgres-cluster] New chart to create Postgres clusters with local storage (#739)

* first release of postgres-cluster * increase path version * Fix .Values access * Use common.labels.selectorLabels * 1.0.4 - Use .Value and not $.Value * 1.0.5 - fix schedule * 1.0.6 * 1.0.6 - Remove unneded service * 1.0.8 * 1.0.9 - fix .Value.replicaNodes * 1.0.10 * move chart * WIP * Ready for test * update readme * fix secret name * Merge branch 'postgres-cluster' * add labels * gen secret * fix labels * keep DB content * Ready to submit * rename chart Co-authored-by: angelnu <git@angelnucom> Co-authored-by: ᗪєνιη ᗷυнʟ <onedr0p@users.noreply.github.com>
2025-01-23 23:49:12 +00:00 · 2021-04-01 13:24:16 +02:00 · 2021-04-01 13:24:16 +02:00 · 8c7886aca6
commit 8c7886aca6
parent 64b0f9e85c
16 changed files with 690 additions and 0 deletions
--- a/.github/ct-install.yaml
+++ b/.github/ct-install.yaml
@ -8,6 +8,7 @@ excluded-charts:
 - charts/stable/alertmanager-bot
 - charts/stable/dnsmadeeasy-webhook
 - charts/stable/ser2sock
+- charts/stable/zalando-postgres-cluster
 - charts/stable/zigbee2mqtt
 chart-repos:
 - bitnami=https://charts.bitnami.com/bitnami
--- a/charts/stable/zalando-postgres-cluster/.helmignore
+++ b/charts/stable/zalando-postgres-cluster/.helmignore
@ -0,0 +1,24 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/
+# OWNERS file for Kubernetes
+OWNERS
--- a/charts/stable/zalando-postgres-cluster/CHANGELOG.md
+++ b/charts/stable/zalando-postgres-cluster/CHANGELOG.md
@ -0,0 +1,12 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+
+## [1.0.0]
+
+### Changed
+
+- Initial version
--- a/charts/stable/zalando-postgres-cluster/Chart.yaml
+++ b/charts/stable/zalando-postgres-cluster/Chart.yaml
@ -0,0 +1,20 @@
+apiVersion: v2
+version: 1.0.0
+description: Creates a postgres cluster using the Zalando Postgres operator and local storage
+name: zalando-postgres-cluster
+appVersion: 1.0.0
+keywords:
+- postgres
+- operator
+- zalando
+home: https://github.com/k8s-at-home/charts/tree/master/charts/stable/zalando-postgres-cluster
+icon: https://upload.wikimedia.org/wikipedia/commons/thumb/2/29/Postgresql_elephant.svg/1200px-Postgresql_elephant.svg.png
+sources:
+- https://github.com/zalando/postgres-operator
+maintainers:
+- name: angelnu
+  email: git@angelnu.com
+dependencies:
+- name: common
+  repository: https://library-charts.k8s-at-home.com
+  version: 2.1.0
--- a/charts/stable/zalando-postgres-cluster/README.md
+++ b/charts/stable/zalando-postgres-cluster/README.md
@ -0,0 +1,142 @@
+# zalando-postgres-cluster
+
+![Version: 1.0.0](https://img.shields.io/badge/Version-1.0.0-informational?style=flat-square) ![AppVersion: 1.0.0](https://img.shields.io/badge/AppVersion-1.0.0-informational?style=flat-square)
+
+Creates a postgres cluster using the Zalando Postgres operator and local storage
+
+**This chart is not maintained by the upstream project and any issues with the chart should be raised [here](https://github.com/k8s-at-home/charts/issues/new/choose)**
+
+## Source Code
+
+* <https://github.com/zalando/postgres-operator>
+
+## Requirements
+
+## Dependencies
+
+| Repository | Name | Version |
+|------------|------|---------|
+| https://library-charts.k8s-at-home.com | common | 2.1.0 |
+
+## TL;DR
+
+```console
+helm repo add k8s-at-home https://k8s-at-home.com/charts/
+helm repo update
+helm install zalando-postgres-cluster k8s-at-home/zalando-postgres-cluster
+```
+
+## Installing the Chart
+
+To install the chart with the release name `zalando-postgres-cluster`
+
+```console
+helm install zalando-postgres-cluster k8s-at-home/zalando-postgres-cluster
+```
+
+## Uninstalling the Chart
+
+To uninstall the `zalando-postgres-cluster` deployment
+
+```console
+helm uninstall zalando-postgres-cluster
+```
+
+The command removes all the Kubernetes components associated with the chart **including persistent volumes** and deletes the release.
+
+## Configuration
+
+Read through the [values.yaml](./values.yaml) file. It has several commented out suggested values.
+Other values may be used from the [values.yaml](https://github.com/k8s-at-home/library-charts/tree/main/charts/stable/common/values.yaml) from the [common library](https://github.com/k8s-at-home/library-charts/tree/main/charts/stable/common).
+
+Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`.
+
+```console
+helm install zalando-postgres-cluster \
+  --set env.TZ="America/New York" \
+    k8s-at-home/zalando-postgres-cluster
+```
+
+Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart.
+
+```console
+helm install zalando-postgres-cluster k8s-at-home/zalando-postgres-cluster -f values.yaml
+```
+
+## Custom configuration
+
+This chart is a wrapper for the [Zalando postgres operator](https://github.com/zalando/postgres-operator) to create
+a high available Postgres cluster using nodes local storage.
+
+Features added by this wrapper:
+- creates an storage class using local storage in the nodes specified in `persistentVolumes.replicaNodes`. These replicas survive
+  a tear-down and tear-up of the cluster.
+- (optional) does sql dumps to an existing PVC with K8S cronjobs. The Operator only supports backups to cloud, not NFS PVC for example.
+- Define the password for the DB so that it can be used accross tear-down and tear-up of the cluster.
+
+## Values
+
+**Important**: When deploying an application Helm chart you can add more values from our common library chart [here](https://github.com/k8s-at-home/library-charts/tree/main/charts/stable/common)
+
+| Key | Type | Default | Description |
+|-----|------|---------|-------------|
+| controllerType | string | `""` |  |
+| dumpBackup.existingClaim | string | `nil` |  |
+| dumpBackup.image.pullPolicy | string | `"IfNotPresent"` |  |
+| dumpBackup.image.repository | string | `"postgres"` |  |
+| dumpBackup.image.tag | string | `"latest"` |  |
+| dumpBackup.resources.requests.cpu | string | `"5m"` |  |
+| dumpBackup.resources.requests.memory | string | `"10Mi"` |  |
+| dumpBackup.schedule | string | `"@daily"` | Backup schedule for postgres dumps |
+| dumpBackup.subpath | string | `nil` | Persistent volume claim subpath for the backups @default: <subpathPrefix/<release-name> |
+| dumpBackup.subpathPrefix | string | `"backup/db"` | Persistent volume claim subpath prefix for the backups |
+| persistentVolumes.accessModes[0] | string | `"ReadWriteOnce"` |  |
+| persistentVolumes.annotations | object | `{}` |  |
+| persistentVolumes.hostPath | string | `nil` | Local path for the persistent volumes @default: <hostPathPrefix/<release-name> |
+| persistentVolumes.hostPathPrefix | string | `"/run/db"` | Local prefix for persistent volumes NOTE: The default is in tempfs - you should change to a persistent place for production!!! |
+| persistentVolumes.labels | object | `{}` |  |
+| persistentVolumes.reclaimPolicy | string | `"Retain"` | persistentVolumeReclaimPolicy for the persistent volumes Recicle will delete content once DB is deleted while Retain (default) will keep it. |
+| persistentVolumes.replicaNodes | list | `["node1.example.com","node2.example.com"]` | Replica nodes Must set with at least 2 nodes for the cluster to be highly available |
+| postgresql.databases | object | `{"postgres":"postgres"}` | databases to create and their user |
+| postgresql.numberOfInstances | string | `nil` | Number of replicas It will be automatically set with the number of replicaNodes so any values set here are ignored. |
+| postgresql.postgresql.version | string | `"13"` | Postgres version to deploy - see which versions are supported by the operator |
+| postgresql.teamId | string | `nil` | team Id for the DB cluster |
+| postgresql.users | object | `{"postgres":["superuser","createdb"]}` | DB users to create (see operator) |
+| postgresql.volume.size | string | `"1Gi"` | Size of the persistance volume to allocate |
+| postgresql.volume.storageClass | string | `nil` | Name of the storage class |
+| service.enabled | bool | `false` |  |
+| superuser.password | string | `nil` | Superuser password |
+| superuser.secret | string | `nil` | Superuser k8s secret name. It must match the patter used by the operator |
+| superuser.user | string | `nil` | Superuser user used for cronjobs |
+
+## Changelog
+
+All notable changes to this application Helm chart will be documented in this file but does not include changes from our common library. To read those click [here](https://github.com/k8s-at-home/library-charts/tree/main/charts/stable/commonREADME.md#Changelog).
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+### [1.0.0]
+
+#### Added
+
+- N/A
+
+#### Changed
+
+- N/A
+
+#### Removed
+
+- N/A
+
+[1.0.0]: #1.0.0
+
+## Support
+
+- See the [Docs](https://docs.k8s-at-home.com/our-helm-charts/getting-started/)
+- Open an [issue](https://github.com/k8s-at-home/charts/issues/new/choose)
+- Ask a [question](https://github.com/k8s-at-home/organization/discussions)
+- Join our [Discord](https://discord.gg/sTMX7Vh) community
+
+----------------------------------------------
+Autogenerated from chart metadata using [helm-docs v1.5.0](https://github.com/norwoodj/helm-docs/releases/v1.5.0)
--- a/charts/stable/zalando-postgres-cluster/README.md.gotmpl
+++ b/charts/stable/zalando-postgres-cluster/README.md.gotmpl
@ -0,0 +1,145 @@
+{{- define "custom.repository.organization" -}}
+k8s-at-home
+{{- end -}}
+
+{{- define "custom.repository.url" -}}
+https://github.com/k8s-at-home/charts
+{{- end -}}
+
+{{- define "custom.helm.url" -}}
+https://k8s-at-home.com/charts/
+{{- end -}}
+
+{{- define "custom.helm.path" -}}
+{{ template "custom.repository.organization" . }}/{{ template "chart.name" . }}
+{{- end -}}
+
+{{- define "custom.notes" -}}
+**This chart is not maintained by the upstream project and any issues with the chart should be raised [here](https://github.com/k8s-at-home/charts/issues/new/choose)**
+{{- end -}}
+
+{{- define "custom.requirements" -}}
+## Requirements
+
+{{ template "chart.kubeVersionLine" . }}
+{{- end -}}
+
+{{- define "custom.dependencies" -}}
+## Dependencies
+
+{{ template "chart.requirementsTable" . }}
+{{- end -}}
+
+{{- define "custom.install.tldr" -}}
+## TL;DR
+
+```console
+helm repo add {{ template "custom.repository.organization" . }} {{ template "custom.helm.url" . }}
+helm repo update
+helm install {{ template "chart.name" . }} {{ template "custom.helm.path" . }}
+```
+{{- end -}}
+
+{{- define "custom.install" -}}
+## Installing the Chart
+
+To install the chart with the release name `{{ template "chart.name" . }}`
+
+```console
+helm install {{ template "chart.name" . }} {{ template "custom.helm.path" . }}
+```
+{{- end -}}
+
+{{- define "custom.uninstall" -}}
+## Uninstalling the Chart
+
+To uninstall the `{{ template "chart.name" . }}` deployment
+
+```console
+helm uninstall {{ template "chart.name" . }}
+```
+
+The command removes all the Kubernetes components associated with the chart **including persistent volumes** and deletes the release.
+{{- end -}}
+
+{{- define "custom.configuration.header" -}}
+## Configuration
+{{- end -}}
+
+{{- define "custom.configuration.readValues" -}}
+Read through the [values.yaml](./values.yaml) file. It has several commented out suggested values.
+Other values may be used from the [values.yaml](https://github.com/k8s-at-home/library-charts/tree/main/charts/stable/common/values.yaml) from the [common library](https://github.com/k8s-at-home/library-charts/tree/main/charts/stable/common).
+{{- end -}}
+
+{{- define "custom.configuration.example.set" -}}
+Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`.
+
+```console
+helm install {{ template "chart.name" . }} \
+  --set env.TZ="America/New York" \
+    {{ template "custom.helm.path" . }}
+```
+{{- end -}}
+
+{{- define "custom.configuration.example.file" -}}
+Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart.
+
+```console
+helm install {{ template "chart.name" . }} {{ template "custom.helm.path" . }} -f values.yaml
+```
+{{- end -}}
+
+{{- define "custom.valuesSection" -}}
+## Values
+
+**Important**: When deploying an application Helm chart you can add more values from our common library chart [here](https://github.com/k8s-at-home/library-charts/tree/main/charts/stable/common)
+
+{{ template "chart.valuesTable" . }}
+{{- end -}}
+
+{{- define "custom.support" -}}
+## Support
+
+- See the [Docs](https://docs.k8s-at-home.com/our-helm-charts/getting-started/)
+- Open an [issue](https://github.com/k8s-at-home/charts/issues/new/choose)
+- Ask a [question](https://github.com/k8s-at-home/organization/discussions)
+- Join our [Discord](https://discord.gg/sTMX7Vh) community
+{{- end -}}
+
+{{ template "chart.header" . }}
+
+{{ template "chart.versionBadge" . }}{{ template "chart.typeBadge" . }}{{ template "chart.appVersionBadge" . }}
+
+{{ template "chart.description" . }}
+
+{{ template "custom.notes" . }}
+
+{{ template "chart.sourcesSection" . }}
+
+{{ template "custom.requirements" . }}
+
+{{ template "custom.dependencies" . }}
+
+{{ template "custom.install.tldr" . }}
+
+{{ template "custom.install" . }}
+
+{{ template "custom.uninstall" . }}
+
+{{ template "custom.configuration.header" . }}
+
+{{ template "custom.configuration.readValues" . }}
+
+{{ template "custom.configuration.example.set" . }}
+
+{{ template "custom.configuration.example.file" . }}
+
+{{ template "custom.custom.configuration" . }}
+
+{{ template "custom.valuesSection" . }}
+
+{{ template "custom.changelog" . }}
+
+{{ template "custom.support" . }}
+
+{{ template "helm-docs.versionFooter" . }}
--- a/charts/stable/zalando-postgres-cluster/README_CHANGELOG.md.gotmpl
+++ b/charts/stable/zalando-postgres-cluster/README_CHANGELOG.md.gotmpl
@ -0,0 +1,27 @@
+{{- define "custom.changelog.header" -}}
+## Changelog
+{{- end -}}
+
+{{- define "custom.changelog" -}}
+{{ template "custom.changelog.header" . }}
+
+All notable changes to this application Helm chart will be documented in this file but does not include changes from our common library. To read those click [here](https://github.com/k8s-at-home/library-charts/tree/main/charts/stable/commonREADME.md#Changelog).
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+### [1.0.0]
+
+#### Added
+
+- N/A
+
+#### Changed
+
+- N/A
+
+#### Removed
+
+- N/A
+
+[1.0.0]: #1.0.0
+{{- end -}}
--- a/charts/stable/zalando-postgres-cluster/README_CONFIG.md.gotmpl
+++ b/charts/stable/zalando-postgres-cluster/README_CONFIG.md.gotmpl
@ -0,0 +1,17 @@
+{{- define "custom.custom.configuration.header" -}}
+## Custom configuration
+{{- end -}}
+
+{{- define "custom.custom.configuration" -}}
+{{ template "custom.custom.configuration.header" . }}
+
+This chart is a wrapper for the [Zalando postgres operator](https://github.com/zalando/postgres-operator) to create
+a high available Postgres cluster using nodes local storage.
+
+Features added by this wrapper:
+- creates an storage class using local storage in the nodes specified in `persistentVolumes.replicaNodes`. These replicas survive
+  a tear-down and tear-up of the cluster.
+- (optional) does sql dumps to an existing PVC with K8S cronjobs. The Operator only supports backups to cloud, not NFS PVC for example.
+- Define the password for the DB so that it can be used accross tear-down and tear-up of the cluster.
+
+{{- end -}}
--- a/charts/stable/zalando-postgres-cluster/templates/backupCronjob.yaml
+++ b/charts/stable/zalando-postgres-cluster/templates/backupCronjob.yaml
@ -0,0 +1,56 @@
+{{- if .Values.dumpBackup.existingClaim -}}
+# ------------------- CronJob ------------------- #
+apiVersion: batch/v1beta1
+kind: CronJob
+metadata:
+  name: {{ include "common.names.fullname" . }}-backup
+  labels:
+    {{- include "common.labels" . | nindent 4 }}
+spec:
+  schedule: {{ .Values.dumpBackup.schedule | quote }}
+  concurrencyPolicy: Replace
+  jobTemplate:
+    spec:
+      template:
+        metadata:
+          name: {{ include "common.names.fullname" . }}-backup
+          labels:
+            {{- include "common.labels.selectorLabels" . | nindent 12 }}
+        spec:
+          containers:
+            - name: backup
+              image: "{{ .Values.dumpBackup.image.repository}}:{{ .Values.dumpBackup.image.tag}}"
+              imagePullPolicy: {{ .Values.dumpBackup.image.imagePullPolicy}}
+              command:
+              - /bin/sh
+              - -ce
+              - |
+                echo "$(date) - Start dump"
+                pg_dumpall > /backup/new && mv /backup/new /backup/backup
+                echo "$(date) - End dump"
+                ls -lh /backup
+              resources:
+                {{- .Values.dumpBackup.resources | toYaml | nindent 16 }}
+              env:
+              - name: PGHOST
+                value: {{ include "zalando-postgres-cluster.db" . }}
+              - name: PGUSER
+                valueFrom:
+                  secretKeyRef:
+                    name: {{ include "zalando-postgres-cluster.superuser_secret" . }}
+                    key: username
+              - name: PGPASSWORD
+                valueFrom:
+                  secretKeyRef:
+                    name: {{ include "zalando-postgres-cluster.superuser_secret" . }}
+                    key: password
+              volumeMounts:
+              - mountPath: /backup
+                name: backup-volume
+                subPath: {{ include "zalando-postgres-cluster.backupPVCSubpath" . }}
+          restartPolicy: OnFailure
+          volumes:
+            - name: backup-volume
+              persistentVolumeClaim:
+                claimName: {{ .Values.dumpBackup.existingClaim }}
+{{- end -}}
--- a/charts/stable/zalando-postgres-cluster/templates/common.yaml
+++ b/charts/stable/zalando-postgres-cluster/templates/common.yaml
@ -0,0 +1,37 @@
+{{/* Make sure all variables are set properly */}}
+{{- include "common.values.setup" . }}
+
+{{- define "zalando-postgres-cluster.db" -}}
+{{- include "common.names.fullname" .|lower -}}-postgres
+{{- end -}}
+
+{{- define "zalando-postgres-cluster.superuser" -}}
+{{- default (keys .Values.postgresql.users | first ) .Values.superuser.user -}}
+{{- end -}}
+
+{{- define "zalando-postgres-cluster.superuser_secret" -}}
+{{ default (printf "%s.%s.credentials.postgresql.acid.zalan.do" (include "zalando-postgres-cluster.superuser" .) (include "zalando-postgres-cluster.db" .)) .Values.superuser.secret }}
+{{- end -}}
+
+{{- define "zalando-postgres-cluster.superuser_password" -}}
+{{- default (randAlphaNum 50) .Values.superuser.password -}}
+{{- end -}}
+
+{{- define "zalando-postgres-cluster.storageClass" -}}
+{{- default (include "common.names.fullname" .|lower ) .Values.postgresql.volume.storageClass -}}
+{{- end -}}
+
+{{- define "zalando-postgres-cluster.pvName" -}}
+{{- include "common.names.fullname" .|lower -}}
+{{- end -}}
+
+{{- define "zalando-postgres-cluster.localPath" -}}
+{{- default (printf "%s/%s" .Values.persistentVolumes.hostPathPrefix (include "common.names.fullname" .)) .Values.persistentVolumes.hostPath -}}
+{{- end -}}
+
+{{- define "zalando-postgres-cluster.backupPVCSubpath" -}}
+{{- default (printf "%s/%s" .Values.dumpBackup.subpathPrefix (include "common.names.fullname" .)) .Values.dumpBackup.subpath -}}
+{{- end -}}
+
+{{/* Render the templates */}}
+{{ include "common.all" . }}
--- a/charts/stable/zalando-postgres-cluster/templates/db.yaml
+++ b/charts/stable/zalando-postgres-cluster/templates/db.yaml
@ -0,0 +1,18 @@
+{{- if not .Values.postgresql.volume.storageClass -}}
+  {{- $_ := set .Values.postgresql.volume "storageClass" (include "zalando-postgres-cluster.storageClass" .) }}
+{{- end}}
+
+{{- if not .Values.postgresql.teamId -}}
+  {{- $_ := set .Values.postgresql "teamId" (include "common.names.fullname" .) }}
+{{- end}}
+
+{{- $_ := set .Values.postgresql "numberOfInstances" (len $.Values.persistentVolumes.replicaNodes) }}
+
+apiVersion: "acid.zalan.do/v1"
+kind: postgresql
+metadata:
+  name: {{ include "zalando-postgres-cluster.db" . }}
+  labels:
+    {{- include "common.labels" . | nindent 4 }}
+spec:
+  {{- .Values.postgresql | toYaml | nindent 2 }}
--- a/charts/stable/zalando-postgres-cluster/templates/persistentVolumes.yaml
+++ b/charts/stable/zalando-postgres-cluster/templates/persistentVolumes.yaml
@ -0,0 +1,40 @@
+{{- range $i:= untilStep 0 (len $.Values.persistentVolumes.replicaNodes) 1 -}}
+---
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: {{ include "zalando-postgres-cluster.pvName" $ }}-{{ $i }}
+  labels:
+    {{- include "common.labels" $ | nindent 4 }}
+    {{- if gt (len $.Values.persistentVolumes.labels) 0 }}
+    {{- $.Values.persistentVolumes.labels | toYaml | nindent 4 }}
+    {{- end }}
+  {{- if gt (len $.Values.persistentVolumes.annotations) 0 }}
+  annotations:
+    {{- $.Values.persistentVolumes.annotations | toYaml | nindent 4 }}
+  {{- end }}
+  finalizers:
+    - kubernetes.io/pv-protection
+spec:
+  storageClassName: {{ include "zalando-postgres-cluster.storageClass" $ }}
+  volumeMode: Filesystem
+  capacity:
+    storage: "{{ $.Values.postgresql.volume.size }}"
+  accessModes:
+    {{- $.Values.persistentVolumes.accessModes | toYaml | nindent 4 }}
+  hostPath:
+    path: {{ include "zalando-postgres-cluster.localPath" $ }}
+  #Since it is created directly this does not delete it from cluster
+  persistentVolumeReclaimPolicy: "{{ $.Values.persistentVolumes.reclaimPolicy }}"
+  
+  {{- $e := index $.Values.persistentVolumes.replicaNodes $i }}
+  nodeAffinity:
+    required:
+      nodeSelectorTerms:
+      - matchExpressions:
+        - key: kubernetes.io/hostname
+          operator: In
+          values:
+          - {{ $e }}
+
+{{ end }}
--- a/charts/stable/zalando-postgres-cluster/templates/secret.yaml
+++ b/charts/stable/zalando-postgres-cluster/templates/secret.yaml
@ -0,0 +1,16 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  labels:
+    {{- include "common.labels" . | nindent 4 }}
+    application: spilo
+    team: {{ include "common.names.fullname" . }}
+    # xref: https://github.com/helm/helm/issues/3053
+    # xref: https://github.com/helm/helm/pull/5290
+    "helm.sh/hook": "pre-install"
+    "helm.sh/hook-delete-policy": "before-hook-creation"
+  name: {{ include "zalando-postgres-cluster.superuser_secret" . }}
+stringData:
+  username: {{ include "zalando-postgres-cluster.superuser" . }}
+  password: {{ include "zalando-postgres-cluster.superuser_password" . }}
+type: Opaque
--- a/charts/stable/zalando-postgres-cluster/templates/storageClass.yaml
+++ b/charts/stable/zalando-postgres-cluster/templates/storageClass.yaml
@ -0,0 +1,10 @@
+apiVersion: storage.k8s.io/v1
+kind: StorageClass
+metadata:
+  name: {{ include "zalando-postgres-cluster.storageClass" . }}
+  labels:
+    {{- include "common.labels" . | nindent 4 }}
+  annotations:
+provisioner: kubernetes.io/no-provisioner
+reclaimPolicy: Delete
+volumeBindingMode: WaitForFirstConsumer
--- a/charts/stable/zalando-postgres-cluster/templates/tests/test-db.yaml
+++ b/charts/stable/zalando-postgres-cluster/templates/tests/test-db.yaml
@ -0,0 +1,42 @@
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: "{{ include "common.names.fullname" .|lower }}-test-db"
+  labels:
+{{ include "common.labels" . | nindent 4 }}
+  annotations:
+    "helm.sh/hook": test-success
+spec:
+  template:
+    metadata:
+      name: "{{ include "common.names.fullname" .|lower }}-test-db"
+      labels:
+        {{ include "common.labels" . | nindent 8 }}
+    spec:
+      containers:
+      - name: psql
+        image: "{{ .Values.dumpBackup.image.repository}}:{{ .Values.dumpBackup.image.tag}}"
+        imagePullPolicy: {{ .Values.dumpBackup.image.imagePullPolicy}}
+        command: ['sh']
+        args:
+        - "-ecx"
+        - |
+          echo ";"|psql
+
+        env:
+        - name: PGHOST
+          value: {{ include "zalando-postgres-cluster.db" . | quote }}
+        - name: PGSSLMODE
+          value: require
+        - name: PGUSER
+          valueFrom:
+            secretKeyRef:
+              name: {{ include "zalando-postgres-cluster.superuser_secret" . }}
+              key: username
+        - name: PGPASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: {{ include "zalando-postgres-cluster.superuser_secret" . }}
+              key: password
+      restartPolicy: Never
+
--- a/charts/stable/zalando-postgres-cluster/values.yaml
+++ b/charts/stable/zalando-postgres-cluster/values.yaml
@ -0,0 +1,83 @@
+# See all operator values at https://github.com/zalando/postgres-operator/blob/master/docs/reference/cluster_manifest.md
+postgresql:
+  # -- team Id for the DB cluster
+  teamId:
+  volume:
+    # -- Size of the persistance volume to allocate
+    size: "1Gi"
+    # -- (string) Name of the storage class
+    # @default -- chart fullname
+    storageClass:
+  # -- Number of replicas
+  # It will be automatically set with the number of replicaNodes so any values set here are ignored.
+  numberOfInstances:
+  # -- DB users to create (see operator)
+  users:
+    postgres:
+    - superuser
+    - createdb
+
+  # -- databases to create and their user
+  databases:
+    postgres: postgres
+  postgresql:
+    # -- Postgres version to deploy - see which versions are supported by the operator
+    version: "13"
+
+superuser:
+  # -- Superuser user used for cronjobs
+  # @default -- first user in postgresql.users
+  user:
+  # -- Superuser password
+  # @default -- randomly generated on first install of the chart
+  password:
+  # -- Superuser k8s secret name. It must match the patter used by the operator
+  # @default -- <user>.<db name>.credentials.postgresql.acid.zalan.do
+  secret:
+
+persistentVolumes:
+  # -- Local prefix for persistent volumes
+  # NOTE: The default is in tempfs - you should change to a persistent place for production!!!
+  hostPathPrefix: "/run/db"
+  # -- Local path for the persistent volumes
+  # @default: <hostPathPrefix/<release-name>
+  hostPath:
+  # -- persistentVolumeReclaimPolicy for the persistent volumes
+  # Recicle will delete content once DB is deleted while Retain (default) will keep it.
+  reclaimPolicy: Retain
+
+  accessModes:
+  - ReadWriteOnce
+  # -- Replica nodes
+  # Must set with at least 2 nodes for the cluster to be highly available
+  replicaNodes:
+  - node1.example.com
+  - node2.example.com
+  labels: {}
+  #  foo: a
+  annotations: {}
+
+
+dumpBackup:
+  # Enable backups to a PVC
+  existingClaim:
+  # -- Backup schedule for postgres dumps
+  schedule: "@daily"
+  # -- Persistent volume claim subpath prefix for the backups
+  subpathPrefix: "backup/db"
+  # -- Persistent volume claim subpath for the backups
+  # @default: <subpathPrefix/<release-name>
+  subpath:
+  image:
+    repository: postgres
+    pullPolicy: IfNotPresent
+    tag: latest
+  resources:
+    requests:
+      memory: "10Mi"
+      cpu: "5m"
+
+# Dissable Deployment and Service
+controllerType: ""
+service:
+  enabled: false