add options for postgresql init

* Update cloudflare/cloudflared Docker tag to v2024.6.0

* bump chart version

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: alexlebens <alexanderlebens@gmail.com>

.github/renovate-update-notification/Dockerfile

@@ -0,0 +1,2 @@
+# This file is processed by Renovate bot so that it creates a PR on new major Renovate versions
+FROM renovate/renovate:37

.github/renovate.json

@@ -0,0 +1,64 @@
+{
+    "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+    "extends": [
+        "config:recommended",
+        "mergeConfidence:all-badges",
+        ":rebaseStalePrs"
+    ],
+    "timezone": "US/Central",
+    "schedule": [
+        "every weekday"
+    ],
+    "labels": [],
+    "packageRules": [
+        {
+            "description": "Disables for non major Renovate version",
+            "matchPaths": [
+                ".github/renovate-update-notification/Dockerfile"
+            ],
+            "matchUpdateTypes": [
+                "minor",
+                "patch",
+                "pin",
+                "digest",
+                "rollback"
+            ],
+            "enabled": false
+        },
+        {
+            "description": "Generate for major Renovate version",
+            "matchPaths": [
+                ".github/renovate-update-notification/Dockerfile"
+            ],
+            "matchUpdateTypes": [
+                "major"
+            ],
+            "addLabels": [
+                "upgrade"
+            ],
+            "automerge": false
+        },
+        {
+            "description": "Label images",
+            "matchDatasources": [
+                "docker"
+            ],
+            "addLabels": [
+                "image"
+            ],
+            "automerge": false,
+            "minimumReleaseAge": "3 days"
+        },
+        {
+            "description": "Label charts",
+            "matchDatasources": [
+                "helm"
+            ],
+            "addLabels": [
+                "chart"
+            ],
+            "automerge": false,
+            "minimumReleaseAge": "3 days"
+        }
+    ]
+}

.github/workflows/lint-test.yaml

@@ -0,0 +1,37 @@
+name: lint-and-test-charts
+
+on: pull_request
+
+jobs:
+  lint-test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Helm
+        uses: azure/setup-helm@v4
+        with:
+          version: v3.13.3
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.10"
+          check-latest: true
+
+      - name: Set up chart-testing
+        uses: helm/chart-testing-action@v2.6.1
+
+      - name: Run chart-testing (list-changed)
+        id: list-changed
+        run: |
+          changed=$(ct list-changed --target-branch ${{ github.event.repository.default_branch }})
+          if [[ -n "$changed" ]]; then
+            echo "changed=true" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Run chart-testing (lint)
+        if: steps.list-changed.outputs.changed == 'true'
+        run: ct lint --target-branch ${{ github.event.repository.default_branch }}

.github/workflows/release.yml

@@ -0,0 +1,27 @@
+name: release-charts
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  release:
+    permissions:
+      contents: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Configure Git
+        run: |
+          git config user.name "$GITHUB_ACTOR"
+          git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
+
+      - name: Run chart-releaser
+        uses: helm/chart-releaser-action@v1.6.0
+        env:
+          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

.gitignore

@@ -0,0 +1,12 @@
+# Archived
+charts/**/archive
+
+# Compiled Helm chart dependencies
+charts/**/Chart.lock
+charts/**/charts/
+
+# Testing
+__snapshot__/
+
+# Docs
+_site/

LICENSE

@@ -0,0 +1,201 @@
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_config.yml

@@ -1 +0,0 @@
-theme: jekyll-theme-cayman

charts/cloudflared/Chart.yaml

@@ -0,0 +1,18 @@
+apiVersion: v2
+name: cloudflared
+version: 1.4.0
+description: Cloudflared Tunnel
+keywords:
+  - cloudflare
+  - tunnel
+sources:
+  - https://github.com/cloudflare/cloudflared
+  - https://github.com/bjw-s/helm-charts/tree/main/charts/library/common
+maintainers:
+  - name: alexlebens
+dependencies:
+  - name: common
+    repository: https://bjw-s.github.io/helm-charts/
+    version: 3.2.1
+icon: https://avatars.githubusercontent.com/u/314135?s=48&v=4
+appVersion: "2024.6.0"

charts/cloudflared/README.md

@@ -0,0 +1,16 @@
+## Introduction
+
+[Cloudflared](https://github.com/cloudflare/cloudflared)
+
+Contains the command-line client for Cloudflare Tunnel, a tunneling daemon that proxies traffic from the Cloudflare network to your origins.
+
+This chart bootstraps a [Cloudflared](https://github.com/cloudflare/cloudflared) tunnel on a [Kubernetes](https://kubernetes.io) cluster using the [Helm](https://helm.sh) package manager.
+
+## Prerequisites
+
+- Kubernetes
+- Helm
+
+## Parameters
+
+See the [values files](values.yaml).

charts/cloudflared/templates/common.yaml

@@ -0,0 +1,41 @@
+{{- include "bjw-s.common.loader.init" . }}
+
+{{- define "cloudflared.hardcodedValues" -}}
+{{ if not .Values.global.nameOverride }}
+global:
+  nameOverride: {{ .Values.name }}
+{{ end }}  
+controllers:
+  main:
+    type: deployment
+    strategy: Recreate
+    containers:
+      main:
+        image:
+          repository: {{ .Values.image.repository }}
+          tag: {{ .Values.image.tag }}
+          pullPolicy: {{ .Values.image.pullPolicy }}
+        args:
+          - tunnel
+          - --protocol
+          - http2
+          - --no-autoupdate
+          - run
+          - --token
+          - $(CF_MANAGED_TUNNEL_TOKEN)
+        env:
+          - name: CF_MANAGED_TUNNEL_TOKEN
+            valueFrom:
+              secretKeyRef:
+                name: {{ .Values.existingSecretName }}
+                key: {{ .Values.existingSecretKey }}
+        resources:
+        {{- with .Values.resources }}
+        resources:
+          {{- toYaml . | nindent 10 }}
+        {{ end }}
+{{- end -}}
+{{- $_ := mergeOverwrite .Values (include "cloudflared.hardcodedValues" . | fromYaml) -}}
+
+{{/* Render the templates */}}
+{{ include "bjw-s.common.loader.generate" . }}

charts/cloudflared/values.yaml

@@ -0,0 +1,11 @@
+name: cloudflared
+existingSecretName: cloudflared-secret
+existingSecretKey: cf-tunnel-token
+image:
+  repository: cloudflare/cloudflared
+  tag: "2024.6.0"
+  pullPolicy: IfNotPresent
+resources:
+  requests:
+    cpu: 100m
+    memory: 128Mi

charts/mysql-cluster/Chart.yaml

@@ -0,0 +1,15 @@
+apiVersion: v2
+name: mysql-cluster
+version: 0.2.1
+description: Chart for a mysql cluster
+keywords:
+  - database
+  - mysql
+sources:
+  - https://dev.mysql.com/
+  - https://github.com/mysql/mysql-operator
+  - https://github.com/mysql/mysql-operator/tree/trunk/helm/mysql-innodbcluster
+maintainers:
+  - name: alexlebens
+icon: https://avatars.githubusercontent.com/u/2452804?s=48&v=4
+appVersion: 8.4.0

charts/mysql-cluster/README.md

@@ -0,0 +1,17 @@
+## Introduction
+
+[MySQL Operator](https://dev.mysql.com/doc/mysql-operator/en/)
+
+MySQL Operator for Kubernetes manages MySQL InnoDB Cluster setups inside a Kubernetes Cluster. MySQL Operator for Kubernetes manages the full lifecycle with setup and maintenance including automating upgrades and backups.
+
+This chart bootstraps a [MySQL InnoDB](https://dev.mysql.com/doc/mysql-operator/en/mysql-operator-innodbcluster.html) cluster on a [Kubernetes](https://kubernetes.io) cluster using the [Helm](https://helm.sh) package manager.
+
+## Prerequisites
+
+- Kubernetes
+- Helm
+- MySQL Operator
+
+## Parameters
+
+See the [values files](values.yaml).

charts/mysql-cluster/templates/_backup.tpl

@@ -0,0 +1,72 @@
+{{- define "cluster.backup" -}}
+
+{{- if and .Values.backup.enabled .Values.backup.profiles }}
+backupProfiles:
+{{- $isDumpInstance := false }}
+{{- $isSnapshot := false }}
+{{- range $_, $profile := .Values.backup.profiles }}
+  - name: {{ $profile.name | quote }}
+      {{- if hasKey $profile "podAnnotations" }}
+    podAnnotations:
+      {{ toYaml $profile.podAnnotations | nindent 6 }}
+      {{- end }}
+      {{- if hasKey $profile "podLabels" }}
+    podLabels:
+      {{ toYaml $profile.podLabels | nindent 6 }}
+      {{- end }}
+
+    {{- $isDumpInstance = hasKey $profile "dumpInstance" }}
+    {{- $isSnapshot = hasKey $profile "snapshot" }}
+    {{- if or $isDumpInstance $isSnapshot }}
+
+      {{- $backupProfile := ternary $profile.dumpInstance $profile.snapshot $isDumpInstance }}
+      {{- if $isDumpInstance }}
+    dumpInstance:
+      {{- else if $isSnapshot }}
+    snapshot:
+      {{- else }}
+      {{- fail "Unsupported or unspecified backup type, must be either snapshot or dumpInstance" }}
+      {{ end }}
+
+      {{- if not (hasKey $backupProfile "storage") }}
+      {{- fail "backup profile $profile.name has no storage section" }}
+      {{- else if hasKey $backupProfile.storage "s3" }}
+      storage:
+        s3:
+            {{- if $backupProfile.storage.s3.prefix }}
+          prefix: {{ $backupProfile.storage.s3.prefix }}
+            {{- end }}
+          bucketName: {{ required "bucketName is required" $backupProfile.storage.s3.bucketName }}
+          config: {{ required "config is required" $backupProfile.storage.s3.config }}
+            {{- if $backupProfile.storage.s3.profile }}
+          profile: {{ $backupProfile.storage.s3.profile }}
+            {{- end }}
+            {{- if $backupProfile.storage.s3.endpoint }}
+          endpoint: {{ $backupProfile.storage.s3.endpoint }}
+            {{- end }}
+      {{- else if hasKey $backupProfile.storage "persistentVolumeClaim" }}
+      storage:
+        persistentVolumeClaim: {{ toYaml $backupProfile.storage.persistentVolumeClaim | nindent 12}}
+      {{- else -}}
+      {{- fail "Backup profile $profile.name has empty storage section - neither s3 nor persistentVolumeClaim defined" }}
+      {{- end -}}
+
+    {{- end }}
+{{- end }}
+{{- end }}
+
+{{- if .Values.backup.schedules }}
+backupSchedules:
+{{- range $_, $schedule := .Values.backup.schedules }}
+  - name: {{ $schedule.name | quote }}
+    enabled: {{ $schedule.enabled }}
+    schedule: {{ quote $schedule.schedule }}
+      {{- if ($schedule).timeZone }}
+    timeZone: {{ quote $schedule.timeZone }}
+      {{- end }}
+    deleteBackupData: {{ $schedule.deleteBackupData }}
+    backupProfileName: {{ $schedule.backupProfileName }}
+{{- end }}
+{{- end }}
+
+{{- end }}

charts/mysql-cluster/templates/_helpers.tpl

@@ -0,0 +1,64 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "cluster.name" -}}
+  {{- if .Values.global.nameOverride }}
+    {{- .Values.global.nameOverride | trunc 63 | trimSuffix "-" }}
+  {{- else }}
+    {{- printf "%s-mysql-%s" .Release.Name ((semver .Values.cluster.image.version).Major | toString) | trunc 63 | trimSuffix "-" -}}
+  {{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "cluster.chart" -}}
+  {{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Check for invalid versions
+*/}}
+{{- $minimalVersion := "8.0.27" }}
+{{- $forbiddenVersions := list "8.0.29" }}
+{{- $serverVersion := .Values.serverVersion | default .Chart.AppVersion }}
+{{- if lt $serverVersion $minimalVersion }}
+  {{- $err := printf "It is not possible to use MySQL version %s . Please, use %s or above" $serverVersion $minimalVersion }}
+  {{- fail $err }}
+{{- end }}
+{{- if has $serverVersion $forbiddenVersions }}
+  {{- $err := printf "It is not possible to use MySQL version %s . Please, use %s or above except %v" $serverVersion $minimalVersion $forbiddenVersions }}
+  {{- fail $err }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "cluster.labels" -}}
+helm.sh/chart: {{ include "cluster.chart" . }}
+{{ include "cluster.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "cluster.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "cluster.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+app.kubernetes.io/part-of: cloudnative-pg
+{{- end }}
+
+{{/*
+Create the name of the service account to use.
+*/}}
+{{- define "mysql.serviceAccountName" -}}
+{{- if .Values.serviceAccount.enabled -}}
+    {{ default (include "cluster.name" .) .Values.serviceAccount.name }}
+{{- else -}}
+    {{ default "default" .Values.serviceAccount.name }}
+{{- end -}}
+{{- end -}}

charts/mysql-cluster/templates/_init.tpl

@@ -0,0 +1,47 @@
+{{- define "cluster.init" -}}
+
+{{- if eq .Values.mode "clone" }}
+{{- with .Values.clone }}
+initDB:
+  clone:
+    donorUrl: {{ required "clone donorUrl is required" .donorUrl }}
+    rootUser: {{ .rootUser | default "root" }}
+    secretKeyRef:
+      name: {{ required "clone credentials is required" .exisitingCredentialsSecret }}
+{{- end }}
+{{- end }}
+
+{{- if eq .Values.mode "recovery" }}
+{{- with .Values.recovery }}
+initDB:
+  dump:
+      {{- if .name }}
+    name: {{ .name | quote }}
+      {{- end }}
+      {{- if .path }}
+    path: {{ .path | quote }}
+      {{- end }}
+      {{- if .options }}
+    options: {{ toYaml .options | nindent 8 }}
+      {{- end }}
+    storage:
+      {{- if eq .type "s3" }}
+      s3:
+        prefix: {{ required "s3 prefix is required" .s3.prefix }}
+        bucketName: {{ required "s3 bucketName is required" .s3.bucketName }}
+        config: {{ required "s3 config is required" .s3.config }}
+          {{- if .s3.profile }}
+        profile: {{ .s3.profile }}
+          {{- end }}
+          {{- if .s3.endpoint }}
+        endpoint: {{ .s3.endpoint }}
+          {{- end }}
+      {{- end }}
+      {{- if eq .type "pvc" }}
+      persistentVolumeClaim:
+        {{ toYaml .persistentVolumeClaim | nindent 10}}
+      {{- end }}
+{{- end }}
+{{- end }}
+
+{{- end }}

charts/mysql-cluster/templates/deployment.yaml

@@ -0,0 +1,75 @@
+apiVersion: mysql.oracle.com/v2
+kind: InnoDBCluster
+metadata:
+  name: {{ include "cluster.name" . }}-cluster
+  namespace: {{ .Release.Namespace }}
+  annotations:
+    {{- with .Values.global.annotations }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
+  labels:
+    {{- include "cluster.labels" . | nindent 4 }}
+    {{- include "cluster.selectorLabels" . | nindent 4 }}
+    {{- with .Values.global.labels }}
+    {{ toYaml . | nindent 4 }}
+    {{- end }}
+spec:
+  instances: {{ required "serverInstances is required" .Values.cluster.serverInstances }}
+  baseServerId: {{ required "baseServerId is required" .Values.cluster.baseServerId }}  
+  serviceAccountName: {{ include "mysql.serviceAccountName" . }}  
+  imagePullPolicy : {{ .Values.cluster.image.pullPolicy }}
+  version: {{ .Values.cluster.image.version }}
+  tlsUseSelfSigned: true
+  secretName: {{ .Values.cluster.exisitingCredentialsSecret }}
+  podSpec:
+    {{- with .Values.cluster.podSpec }}
+    {{ toYaml . | nindent 4 }}
+    {{- end }}
+  podAnnotations:
+    {{- with .Values.cluster.podAnnotations }}
+    {{ toYaml . | nindent 4 }}
+    {{- end }}
+  podLabels:
+    {{- with .Values.cluster.podLabels }}
+    {{ toYaml . | nindent 4 }}
+    {{- end }}
+  router:
+    instances: {{ required "router.instances is required" .Values.cluster.router.instances }}
+    podSpec:
+      {{- with .Values.cluster.router.podSpec }}
+      {{- toYaml . | nindent 6 }}
+      {{- end }}
+    podAnnotations:
+      {{- with .Values.cluster.router.podAnnotations }}
+      {{- toYaml . | nindent 6 }}
+      {{- end }}
+    podLabels:
+      {{- with .Values.cluster.router.podLabels }}
+      {{- toYaml . | nindent 6 }}
+      {{- end }}
+    tlsSecretName: {{ include "cluster.name" . }}-router-tls
+  logs:
+    {{- with .Values.cluster.logs }}
+    {{ toYaml . | nindent 4 }}
+    {{- end }}      
+  mycnf: |
+{{ .Values.cluster.serverConfig.mycnf | indent 4 }}
+  {{- if .Values.cluster.datadirVolumeClaimTemplate }}
+  {{- with .Values.cluster.datadirVolumeClaimTemplate }}
+  datadirVolumeClaimTemplate:
+    {{- if .storageClassName }}
+    storageClassName: {{ .storageClassName | quote }}
+    {{- end}}
+    {{- if .accessModes }}
+    accessModes: [ "{{ .accessModes }}" ]
+    {{- end }}
+    {{- if .size }}
+    resources:
+      requests:
+        storage: "{{ .size }}"
+    {{- end }}
+  {{- end }}
+  {{- end }}
+
+  {{ include "cluster.init" . | nindent 2 }}
+  {{ include "cluster.backup" . | nindent 2 }}

charts/mysql-cluster/templates/service-account.yaml

@@ -0,0 +1,21 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "mysql.serviceAccountName" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "cluster.labels" . | nindent 4 }}
+    {{- include "cluster.selectorLabels" . | nindent 4 }}    
+    {{- with .Values.global.labels }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
+    {{- with .Values.serviceAccount.labels }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}    
+  annotations:
+    {{- with .Values.global.annotations }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
+    {{- with .Values.serviceAccount.annotations }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}

charts/mysql-cluster/values.yaml

@@ -0,0 +1,148 @@
+global:
+  nameOverride:
+  labels: {}
+  annotations: {}
+
+serviceAccount:
+  enabled: true
+  labels: {}
+  annotations: {}
+  name: ""
+
+###
+# Cluster mode of operation. Available modes:
+# * `standalone` - Default mode. Creates new or updates an existing cluster.
+# * `recovery` - Same as standalone but creates a cluster from a backup
+# * `clone` - Create database as a replica from another cluster
+mode: standalone
+
+##
+# Cluster spec
+#
+# Reference: https://dev.mysql.com/doc/mysql-operator/en/mysql-operator-properties.html#mysql-operator-spec-innodbclusterspecinitdbdumpstorages3
+#
+cluster:
+  serverInstances: 1
+  baseServerId: 1000
+
+  # Existing secret that contains the keys "rootUser", "rootHost", and "rootPassword"
+  exisitingCredentialsSecret: ""
+
+  image:
+    version: 8.4.0
+    pullPolicy: IfNotPresent
+
+  router:
+    instances: 1
+    podSpec: {}
+    podAnnotations: {}
+    podLabels: {}
+
+  logs:
+    error:
+      enabled: true
+      collect: false
+    general:
+      enabled: false
+      collect: false
+    slowQuery:
+      enabled: false
+      longQueryTime: 2.5
+
+  serverConfig:
+    mycnf: |
+      [mysqld]
+      core_file
+      local_infile=off
+      mysql_native_password=ON
+
+  datadirVolumeClaimTemplate:
+    storageClassName: ""
+    accessModes: ""
+    size: ""
+
+  podSpec:
+    containers:
+      - name: mysql
+        resources:
+          limits:
+            memory: 1024Mi
+            cpu: 1000m
+          requests:
+            memory: 512Mi
+            cpu: 100m
+  podAnnotations: {}
+  podLabels: {}
+
+##
+# Recovery database from storage
+#
+recovery:
+
+  # * `s3` - Restores from s3 object store
+  # * `pvc` - Restores from persistent volume claim
+  type:
+
+  # -- Name of the dump. Not used by the operator, but a descriptive hint for the cluster administrator
+  name: ""
+  # -- Path to the dump in the PVC. Use when specifying persistentVolumeClaim. Omit for ociObjectStorage, S3, or azure.
+  path: ""
+  # -- A dictionary of key-value pairs passed directly to MySQL Shell's loadDump()
+  options: {}
+
+  s3:
+    # -- Path in the bucket where the dump files are stored
+    prefix: ""
+    # -- Name of a Secret with S3 configuration and credentials as contained in ~/.aws/config
+    config: ""
+    # -- Name of the S3 bucket where the dump is stored
+    bucketName: ""
+    # -- Override endpoint URL
+    endpoint: ""
+
+  persistentVolumeClaim: {}
+
+##
+# Clone database from another instance
+#
+clone:
+  donorUrl: ""
+  rootUser: root
+  exisitingCredentialsSecret: ""
+
+##
+# Backup database to pvc or s3
+#
+backup:
+  enabled: false
+  profiles:
+
+## -- Example profile that back ups to local pvc
+
+#    - name: pvc-backup
+#      dumpInstance:
+#        storage:
+#          persistentVolumeClaim:
+#            claimName: backup-volume-claim
+
+## -- Example profile that back ups to s3 endpoint
+
+#    - name: s3-backup
+#      snapshot:
+#        storage:
+#          s3:
+#            prefix: ""
+#            config: ""
+#            bucketName: ""
+#            endpoint: ""
+
+  schedules:
+
+## -- Example schedule that backups daily
+
+#    - name: schedule-daily
+#      enabled: true
+#      schedule: "0 0 0 * * *"
+#      timeZone: "US/Central"
+#      deleteBackupData: false
+#      backupProfileName:

charts/postgres-cluster/Chart.yaml

@@ -0,0 +1,13 @@
+apiVersion: v2
+name: postgres-cluster
+version: 3.2.0
+description: Chart for cloudnative-pg cluster
+keywords:
+  - database
+  - postgres
+sources:
+  - https://github.com/cloudnative-pg/cloudnative-pg
+maintainers:
+  - name: alexlebens
+icon: https://avatars.githubusercontent.com/u/100373852?s=48&v=4
+appVersion: v1.23.1

charts/postgres-cluster/README.md

@@ -0,0 +1,17 @@
+## Introduction
+
+[CloudNative PG](https://github.com/cloudnative-pg/cloudnative-pg)
+
+CloudNativePG is the Kubernetes operator that covers the full lifecycle of a highly available PostgreSQL database cluster with a primary/standby architecture, using native streaming replication.
+
+This chart bootstraps a [CNPG](https://github.com/cloudnative-pg/cloudnative-pg) cluster on a [Kubernetes](https://kubernetes.io) cluster using the [Helm](https://helm.sh) package manager.
+
+## Prerequisites
+
+- Kubernetes
+- Helm
+- CloudNative PG Operator
+
+## Parameters
+
+See the [values files](values.yaml).

charts/postgres-cluster/templates/_backup.tpl

@@ -0,0 +1,30 @@
+{{- define "cluster.backup" -}}
+{{- if .Values.backup.enabled }}
+backup:
+  retentionPolicy: {{ .Values.backup.retentionPolicy }}
+  barmanObjectStore:
+    destinationPath: {{ .Values.backup.destinationPath }}
+    endpointURL: {{ .Values.backup.endpointURL }}
+    {{- if .Values.backup.endpointCA }}
+    endpointCA:
+      name: {{ .Values.backup.endpointCA }}
+      key: ca-bundle.crt
+    {{- end }}
+    serverName: "{{ include "cluster.name" . }}-backup-{{ .Values.backup.backupIndex }}"
+    s3Credentials:
+      accessKeyId:
+        name: {{ include "cluster.backupCredentials" . }}
+        key: ACCESS_KEY_ID
+      secretAccessKey:
+        name: {{ include "cluster.backupCredentials" . }}
+        key: ACCESS_SECRET_KEY
+    wal:
+      compression: {{ .Values.backup.wal.compression }}
+      encryption: {{ .Values.backup.wal.encryption }}
+      maxParallel: {{ .Values.backup.wal.maxParallel }}
+    data:
+      compression: {{ .Values.backup.data.compression }}
+      encryption: {{ .Values.backup.data.encryption }}
+      jobs: {{ .Values.backup.data.jobs }}
+{{- end }}
+{{- end }}

charts/postgres-cluster/templates/_bootstrap.tpl

@@ -0,0 +1,94 @@
+{{- define "cluster.bootstrap" -}}
+bootstrap:
+{{- if eq .Values.mode "standalone" }}
+  initdb:
+    {{- with .Values.cluster.initdb }}
+    {{- with (omit . "postInitApplicationSQL") }}
+    {{- . | toYaml | nindent 4 }}
+    {{- end }}
+    {{- end }}
+    postInitApplicationSQL:
+      {{- if eq .Values.type "postgis" }}
+      - CREATE EXTENSION IF NOT EXISTS postgis;
+      - CREATE EXTENSION IF NOT EXISTS postgis_topology;
+      - CREATE EXTENSION IF NOT EXISTS fuzzystrmatch;
+      - CREATE EXTENSION IF NOT EXISTS postgis_tiger_geocoder;
+      {{- else if eq .Values.type "timescaledb" }}
+      - CREATE EXTENSION IF NOT EXISTS timescaledb;
+      {{- end }}
+      {{- with .Values.cluster.initdb }}
+      {{- range .postInitApplicationSQL }}
+      {{- printf "- %s" . | nindent 6 }}
+      {{- end }}
+      {{- range .postInitSQL }}
+      {{- printf "- %s" . | nindent 6 }}
+      {{- end }}
+      {{- end }}
+{{- else if eq .Values.mode "replica" }}
+  initdb:
+    import:
+      type: {{ .Values.replica.importType }}
+      databases:
+        {{- if and (gt (len .Values.replica.importDatabases) 1) (eq .Values.replica.importType "microservice") }}
+          {{ fail "Too many databases in import type of microservice!" }}
+        {{- else}}
+        {{- with .Values.replica.importDatabases }}
+        {{- . | toYaml | nindent 8 }}
+        {{- end }}
+        {{- end }}
+      {{- if eq .Values.replica.importType "monolith" }}
+      roles:
+        {{- with .Values.replica.importRoles }}
+        {{- . | toYaml | nindent 8 }}
+        {{- end }}
+      {{- end }}
+      {{- if and (.Values.replica.postImportApplicationSQL) (eq .Values.replica.importType "microservice") }}
+      postImportApplicationSQL:
+        {{- with .Values.replica.postImportApplicationSQL }}
+        {{- . | toYaml | nindent 8 }}
+        {{- end }}
+      {{- end }}
+      source:
+        externalCluster: "{{ include "cluster.name" . }}-cluster"
+externalClusters:
+  - name: "{{ include "cluster.name" . }}-cluster"
+    {{- with .Values.replica.externalCluster }}
+    {{- . | toYaml | nindent 4 }}
+    {{- end }}
+{{- else if eq .Values.mode "recovery" }}
+  recovery:
+    {{- with .Values.recovery.pitrTarget.time }}
+    recoveryTarget:
+      targetTime: {{ . }}
+    {{- end }}
+    source: {{ include "cluster.recoveryServerName" . }}
+externalClusters:
+  - name: {{ include "cluster.recoveryServerName" . }}
+    barmanObjectStore:
+      serverName: {{ include "cluster.recoveryServerName" . }}
+      destinationPath: {{ .Values.recovery.destinationPath }}
+      endpointURL: {{ .Values.recovery.endpointURL }}
+      {{- with .Values.recovery.endpointCA }}
+      endpointCA:
+        name: {{ . }}
+        key: ca-bundle.crt
+      {{- end }}
+      s3Credentials:
+        accessKeyId:
+          name: {{ include "cluster.recoveryCredentials" . }}
+          key: ACCESS_KEY_ID
+        secretAccessKey:
+          name: {{ include "cluster.recoveryCredentials" . }}
+          key: ACCESS_SECRET_KEY
+      wal:
+        compression: {{ .Values.recovery.wal.compression }}
+        encryption: {{ .Values.recovery.wal.encryption }}
+        maxParallel: {{ .Values.recovery.wal.maxParallel }}
+      data:
+        compression: {{ .Values.recovery.data.compression }}
+        encryption: {{ .Values.recovery.data.encryption }}
+        jobs: {{ .Values.recovery.data.jobs }}
+{{- else }}
+  {{ fail "Invalid cluster mode!" }}
+{{- end }}
+{{- end }}

charts/postgres-cluster/templates/_helpers.tpl

@@ -0,0 +1,91 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "cluster.name" -}}
+  {{- if .Values.nameOverride }}
+    {{- .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+  {{- else }}
+    {{- printf "%s-postgresql-%s" .Release.Name ((semver .Values.cluster.image.tag).Major | toString) | trunc 63 | trimSuffix "-" -}}
+  {{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "cluster.chart" -}}
+  {{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "cluster.labels" -}}
+helm.sh/chart: {{ include "cluster.chart" . }}
+{{ include "cluster.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "cluster.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "cluster.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+app.kubernetes.io/part-of: cloudnative-pg
+{{- end }}
+
+{{/*
+Generate name for object store credentials
+*/}}
+{{- define "cluster.recoveryCredentials" -}}
+  {{- if .Values.recovery.endpointCredentials -}}
+    {{- .Values.recovery.endpointCredentials -}}
+  {{- else -}}
+    {{- printf "%s-backup-secret" (include "cluster.name" .) | trunc 63 | trimSuffix "-" -}}
+  {{- end }}
+{{- end }}
+
+{{- define "cluster.backupCredentials" -}}
+  {{- if .Values.backup.endpointCredentials -}}
+    {{- .Values.backup.endpointCredentials -}}
+  {{- else -}}
+    {{- printf "%s-backup-secret" (include "cluster.name" .) | trunc 63 | trimSuffix "-" -}}
+  {{- end }}
+{{- end }}
+
+{{/*
+Generate backup server name
+*/}}
+{{- define "cluster.backupName" -}}
+  {{- if .Values.backup.backupName -}}
+    {{- .Values.backup.backupName -}}
+  {{- else -}}
+    {{ include "cluster.name" . }}
+  {{- end }}
+{{- end }}
+
+
+{{/*
+Generate recovery server name
+*/}}
+{{- define "cluster.recoveryServerName" -}}
+  {{- if .Values.recovery.recoveryServerName -}}
+    {{- .Values.recovery.recoveryServerName -}}
+  {{- else -}}
+    {{- printf "%s-backup-%s" (include "cluster.name" .) (toString .Values.recovery.recoveryIndex) | trunc 63 | trimSuffix "-" -}}
+  {{- end }}
+{{- end }}
+
+{{/*
+Generate recovery instance name
+*/}}
+{{- define "cluster.recoveryInstanceName" -}}
+  {{- if .Values.recovery.recoveryInstanceName -}}
+    {{- .Values.recovery.recoveryInstanceName -}}
+  {{- else -}}
+    {{ include "cluster.name" . }}
+  {{- end }}
+{{- end }}

charts/postgres-cluster/templates/cluster.yaml

@@ -0,0 +1,52 @@
+apiVersion: postgresql.cnpg.io/v1
+kind: Cluster
+metadata:
+  name: {{ include "cluster.name" . }}-cluster
+  namespace: {{ .Release.Namespace }}
+  {{- with .Values.cluster.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+  labels:
+    {{- include "cluster.labels" . | nindent 4 }}
+  {{- with .Values.cluster.additionalLabels }}
+    {{ toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  instances: {{ .Values.cluster.instances }}
+  imageName: "{{ .Values.cluster.image.repository }}:{{ .Values.cluster.image.tag }}"
+  imagePullPolicy: {{ .Values.cluster.image.pullPolicy }}
+  postgresUID: {{ .Values.cluster.postgresUID }}
+  postgresGID: {{ .Values.cluster.postgresGID }}
+  walStorage:
+    size: {{ .Values.cluster.walStorage.size }}
+    storageClass: {{ .Values.cluster.walStorage.storageClass }}
+  storage:
+    size: {{ .Values.cluster.storage.size }}
+    storageClass: {{ .Values.cluster.storage.storageClass }}
+  {{- with .Values.cluster.resources }}
+  resources:
+    {{- toYaml . | nindent 4 }}
+  {{ end }}
+  {{- with .Values.cluster.affinity }}
+  affinity:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+  priorityClassName: {{ .Values.cluster.priorityClassName }}
+  primaryUpdateMethod: {{ .Values.cluster.primaryUpdateMethod }}
+  primaryUpdateStrategy: {{ .Values.cluster.primaryUpdateStrategy }}
+  logLevel: {{ .Values.cluster.logLevel }}
+  postgresql:
+    shared_preload_libraries:
+      {{- if eq .Values.type "timescaledb" }}
+      - timescaledb
+      {{- end }}
+    {{- with .Values.cluster.postgresql.parameters }}
+    parameters:
+      {{- toYaml . | nindent 6 }}
+    {{ end }}
+  monitoring:
+    enablePodMonitor: {{ and .Values.cluster.monitoring.enabled .Values.cluster.monitoring.podMonitor.enabled }}
+
+  {{ include "cluster.bootstrap" . | nindent 2 }}
+  {{ include "cluster.backup" . | nindent 2 }}

charts/postgres-cluster/templates/prometheus-rule.yaml

@@ -0,0 +1,30 @@
+{{- if and .Values.cluster.monitoring.enabled .Values.cluster.monitoring.prometheusRule.enabled -}}
+apiVersion: monitoring.coreos.com/v1
+kind: PrometheusRule
+metadata:
+  name: {{ include "cluster.name" . }}-alert-rules
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "cluster.labels" . | nindent 4 }}
+  {{- with .Values.cluster.additionalLabels }}
+    {{ toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  groups:
+    - name: cloudnative-pg/{{ include "cluster.name" . }}
+      rules:
+        {{- $dict := dict "excludeRules" .Values.cluster.monitoring.prometheusRule.excludeRules -}}
+        {{- $_ := set $dict "value"       "{{ $value }}" -}}
+        {{- $_ := set $dict "namespace"   .Release.Namespace -}}
+        {{- $_ := set $dict "cluster"     (printf "%s-cluster" (include "cluster.name" .) ) -}}
+        {{- $_ := set $dict "labels"      (dict "job" "{{ $labels.job }}" "node" "{{ $labels.node }}" "pod" "{{ $labels.pod }}") -}}
+        {{- $_ := set $dict "podSelector" (printf "%s-cluster-([1-9][0-9]*)$" (include "cluster.name" .) ) -}}
+        {{- $_ := set $dict "Values"      .Values -}}
+        {{- $_ := set $dict "Template"    .Template -}}
+        {{- range $path, $_ := .Files.Glob  "prometheus_rules/**.yaml" }}
+        {{- $tpl := tpl ($.Files.Get $path) $dict | nindent 10 | trim -}}
+        {{- with $tpl }}
+        - {{ $tpl }}
+        {{- end -}}
+        {{- end -}}
+{{ end }}

charts/postgres-cluster/templates/scheduled-backup.yaml

@@ -0,0 +1,18 @@
+{{ if .Values.backup.enabled }}
+apiVersion: postgresql.cnpg.io/v1
+kind: ScheduledBackup
+metadata:
+  name: {{ include "cluster.name" . }}-scheduled-backup
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "cluster.labels" . | nindent 4 }}
+  {{- with .Values.cluster.additionalLabels }}
+    {{ toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  immediate: true
+  schedule: {{ .Values.backup.schedule }}
+  backupOwnerReference: self
+  cluster:
+    name: {{ include "cluster.name" . }}-cluster
+{{ end }}

charts/postgres-cluster/values.yaml

@@ -0,0 +1,197 @@
+# -- Override the name of the cluster
+nameOverride: ""
+
+###
+# -- Type of the CNPG database. Available types:
+# * `postgresql`
+# * `postgis`
+# * `timescaledb`
+type: postgresql
+
+###
+# Cluster mode of operation. Available modes:
+# * `standalone` - Default mode. Creates new or updates an existing CNPG cluster.
+# * `recovery` - Same as standalone but creates a cluster from a backup, object store or via pg_basebackup
+# * `replica` - Create database as a replica from another CNPG cluster
+mode: standalone
+
+cluster:
+  instances: 3
+
+  image:
+    repository: ghcr.io/cloudnative-pg/postgresql
+    tag: "16.3"
+    pullPolicy: IfNotPresent
+
+  # The UID and GID of the postgres user inside the image
+  postgresUID: 26
+  postgresGID: 26
+
+  walStorage:
+    size: 2Gi
+    storageClass: ""
+  storage:
+    size: 10Gi
+    storageClass: ""
+
+  resources:
+    requests:
+      memory: 256Mi
+      cpu: 10m
+    limits:
+      memory: 1Gi
+      cpu: 800m
+      hugepages-2Mi: 256Mi
+
+  # See: https://cloudnative-pg.io/documentation/current/cloudnative-pg.v1/#postgresql-cnpg-io-v1-AffinityConfiguration
+  affinity:
+    enablePodAntiAffinity: true
+    topologyKey: kubernetes.io/hostname
+
+  additionalLabels: {}
+  annotations: {}
+
+  priorityClassName: ""
+
+  # Method to follow to upgrade the primary server during a rolling update procedure, after all replicas have been
+  # successfully updated. It can be switchover (default) or in-place (restart).
+  primaryUpdateMethod: switchover
+
+  # Strategy to follow to upgrade the primary server during a rolling update procedure, after all replicas have been
+  # successfully updated: it can be automated (unsupervised - default) or manual (supervised)
+  primaryUpdateStrategy: unsupervised
+
+  logLevel: "info"
+
+  monitoring:
+    enabled: false
+    podMonitor:
+      enabled: true
+    prometheusRule:
+      enabled: true
+      excludeRules: []
+
+  # See: https://cloudnative-pg.io/documentation/current/cloudnative-pg.v1/#postgresql-cnpg-io-v1-PostgresConfiguration
+  postgresql:
+    parameters:
+      shared_buffers: 128MB
+      max_slot_wal_keep_size: 2000MB
+      hot_standby_feedback: "on"
+
+  # BootstrapInitDB is the configuration of the bootstrap process when initdb is used.
+  # See: https://cloudnative-pg.io/documentation/current/bootstrap/
+  # See: https://cloudnative-pg.io/documentation/current/cloudnative-pg.v1/#postgresql-cnpg-io-v1-bootstrapinitdb
+  initdb:
+    {}
+    # database: app
+    # owner: app
+    # secret: "" # Name of the secret containing the initial credentials for the owner of the user database. If empty a new secret will be created from scratch
+    # postInitApplicationSQL:
+    #   - CREATE TABLE IF NOT EXISTS example;
+
+recovery:
+  # Point in time recovery target in RFC3339 format
+  pitrTarget:
+    time: ""
+
+  # S3 https endpoint and the s3:// path
+  endpointURL: ""
+  destinationPath: ""
+
+  # Specifies secret that contains a CA bundle to validate a privately signed certificate, should contain the key ca-bundle.crt
+  endpointCA: ""
+
+  # Specifies secret that contains S3 credentials, should contain the keys ACCESS_KEY_ID and ACCESS_SECRET_KEY
+  endpointCredentials: ""
+
+  # Generate external cluster name, uses: {{ .Release.Name }}postgresql-<major version>-cluster-backup-index-{{ .Values.recovery.recoveryIndex }}
+  recoveryIndex: 1
+
+  # Name of the recovery cluster in the object store, defaults to "cluster.name"
+  recoveryServerName: ""
+
+  # Name of the recovery cluster in the object store, defaults to ".Release.Name"
+  recoveryInstanceName: ""
+
+  wal:
+    # WAL compression method. One of `` (for no compression), `gzip`, `bzip2` or `snappy`.
+    compression: snappy
+    # Whether to instruct the storage provider to encrypt WAL files. One of `` (use the storage container default), `AES256` or `aws:kms`.
+    encryption: ""
+    # Number of WAL files to be archived or restored in parallel.
+    maxParallel: 2
+  data:
+    # Data compression method. One of `` (for no compression), `gzip`, `bzip2` or `snappy`.
+    compression: snappy
+    # Whether to instruct the storage provider to encrypt data files. One of `` (use the storage container default), `AES256` or `aws:kms`.
+    encryption: ""
+    # Number of data files to be archived or restored in parallel.
+    jobs: 2
+
+replica:
+  # See https://cloudnative-pg.io/documentation/current/database_import/
+  # * `microservice` - Single database import as expected from cnpg clusters
+  # * `monolith` - Import multiple databases and roles
+  importType: microservice
+
+  # If type microservice only one database is allowed, default is app as standard in cnpg clusters
+  importDatabases:
+    - app
+
+  # If type microservice no roles are imported and ignored
+  importRoles: []
+
+  # If import type is monolith postImportApplicationSQL is not supported and ignored
+  postImportApplicationSQL: []
+
+  # External cluster connection, password specifies a secret name and the key containing the password value
+  externalCluster:
+    connectionParameters:
+      host: postgresql
+      user: app
+      dbname: app
+    password:
+      name: postgresql
+      key: password
+
+backup:
+  enabled: false
+
+  # S3 endpoint starting with "https://"
+  endpointURL: ""
+
+  # S3 path starting with "s3://"
+  destinationPath: ""
+
+  # Specifies secret that contains a CA bundle to validate a privately signed certificate, should contain the key ca-bundle.crt
+  endpointCA: ""
+
+  # Specifies secret that contains S3 credentials, should contain the keys ACCESS_KEY_ID and ACCESS_SECRET_KEY
+  endpointCredentials: ""
+
+  # Generate external cluster name, creates: postgresql-{{ .Release.Name }}-cluster-backup-index-{{ .Values.backups.backupIndex }}"
+  backupIndex: 1
+
+  # Name of the backup cluster in the object store, defaults to "cluster.name"
+  backupName: ""
+
+  wal:
+    # WAL compression method. One of `` (for no compression), `gzip`, `bzip2` or `snappy`.
+    compression: snappy
+    # Whether to instruct the storage provider to encrypt WAL files. One of `` (use the storage container default), `AES256` or `aws:kms`.
+    encryption: ""
+    # Number of WAL files to be archived or restored in parallel.
+    maxParallel: 2
+  data:
+    # Data compression method. One of `` (for no compression), `gzip`, `bzip2` or `snappy`.
+    compression: snappy
+    # Whether to instruct the storage provider to encrypt data files. One of `` (use the storage container default), `AES256` or `aws:kms`.
+    encryption: ""
+    # Number of data files to be archived or restored in parallel.
+    jobs: 2
+
+  # Retention policy for backups
+  retentionPolicy: "30d"
+
+  # Scheduled backup in cron format
+  schedule: "0 0 0 * * *"