feat: initial kuberzero-sql module incl. MariaDB-Galera

charts/kubezero-sql/Chart.yaml

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+apiVersion: v2
+name: kubezero-sql
+description: KubeZero umbrella chart for SQL databases like MariaDB, PostgreSQL
+type: application
+version: 0.1.0
+home: https://kubezero.com
+icon: https://cdn.zero-downtime.net/assets/kubezero/logo-small-64.png
+keywords:
+  - kubezero
+  - mariadb
+  - postgresql
+maintainers:
+  - name: Quarky9
+dependencies:
+  - name: kubezero-lib
+    version: ">= 0.1.3"
+    repository: https://zero-down-time.github.io/kubezero/
+  - name: mariadb-galera
+    version: 5.8.0
+    repository: https://charts.bitnami.com/bitnami
+    condition: mariadb.enabled
+kubeVersion: ">= 1.18.0"

charts/kubezero-sql/README.md

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+# kubezero-mq
+
+![Version: 0.2.0](https://img.shields.io/badge/Version-0.2.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square)
+
+KubeZero umbrella chart for MQ systems like NATS, RabbitMQ
+
+**Homepage:** <https://kubezero.com>
+
+## Maintainers
+
+| Name | Email | Url |
+| ---- | ------ | --- |
+| Quarky9 |  |  |
+
+## Requirements
+
+Kubernetes: `>= 1.18.0`
+
+| Repository | Name | Version |
+|------------|------|---------|
+|  | nats | 0.8.3 |
+| https://charts.bitnami.com/bitnami | rabbitmq | 8.13.1 |
+| https://zero-down-time.github.io/kubezero/ | kubezero-lib | >= 0.1.3 |
+
+## Values
+
+| Key | Type | Default | Description |
+|-----|------|---------|-------------|
+| nats.enabled | bool | `false` |  |
+| nats.exporter.serviceMonitor.enabled | bool | `false` |  |
+| nats.nats.advertise | bool | `false` |  |
+| nats.nats.image | string | `"nats:2.2.1-alpine3.13"` |  |
+| nats.nats.jetstream.enabled | bool | `true` |  |
+| nats.natsbox.enabled | bool | `false` |  |
+| rabbitmq.auth.erlangCookie | string | `"randomlongerlangcookie"` |  |
+| rabbitmq.auth.password | string | `"supersecret"` |  |
+| rabbitmq.auth.tls.enabled | bool | `false` |  |
+| rabbitmq.auth.tls.existingSecret | string | `"rabbitmq-server-certificate"` |  |
+| rabbitmq.auth.tls.existingSecretFullChain | bool | `true` |  |
+| rabbitmq.auth.tls.failIfNoPeerCert | bool | `false` |  |
+| rabbitmq.clustering.forceBoot | bool | `true` |  |
+| rabbitmq.enabled | bool | `false` |  |
+| rabbitmq.hosts | list | `[]` | hostnames of rabbitmq services, used for Istio and TLS |
+| rabbitmq.istio.enabled | bool | `false` |  |
+| rabbitmq.istio.gateway | string | `"istio-ingress/private-ingressgateway"` |  |
+| rabbitmq.metrics.enabled | bool | `false` |  |
+| rabbitmq.metrics.serviceMonitor.enabled | bool | `false` |  |
+| rabbitmq.pdb.create | bool | `true` |  |
+| rabbitmq.podAntiAffinityPreset | string | `""` |  |
+| rabbitmq.replicaCount | int | `1` |  |
+| rabbitmq.resources.requests.cpu | string | `"100m"` |  |
+| rabbitmq.resources.requests.memory | string | `"256Mi"` |  |
+| rabbitmq.topologySpreadConstraints | string | `"- maxSkew: 1\n  topologyKey: topology.kubernetes.io/zone\n  whenUnsatisfiable: DoNotSchedule\n  labelSelector:\n    matchLabels: {{- include \"common.labels.matchLabels\" . | nindent 6 }}\n- maxSkew: 1\n  topologyKey: kubernetes.io/hostname\n  whenUnsatisfiable: DoNotSchedule\n  labelSelector:\n    matchLabels: {{- include \"common.labels.matchLabels\" . | nindent 6 }}"` |  |
+
+## Resources
+
+### NATS
+- https://grafana.com/grafana/dashboards/13707

charts/kubezero-sql/README.md.gotmpl

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+{{ template "chart.header" . }}
+{{ template "chart.deprecationWarning" . }}
+
+{{ template "chart.versionBadge" . }}{{ template "chart.typeBadge" . }}{{ template "chart.appVersionBadge" . }}
+
+{{ template "chart.description" . }}
+
+{{ template "chart.homepageLine" . }}
+
+{{ template "chart.maintainersSection" . }}
+
+{{ template "chart.sourcesSection" . }}
+
+{{ template "chart.requirementsSection" . }}
+
+{{ template "chart.valuesSection" . }}
+
+## Resources
+
+### MariaDB

charts/kubezero-sql/example-mariadb-galera.yaml

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+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: test-mariadb
+  namespace: argocd
+spec:
+  project: default
+  source:
+    repoURL: 'https://github.com/zero-down-time/kubezero'
+    path: charts/kubezero-sql
+    targetRevision: master
+    helm:
+      values: |
+        mariadb-galera:
+          enabled: true
+          metrics:
+            serviceMonitor:
+              enabled: true
+
+  destination:
+    server: 'https://kubernetes.default.svc'
+    namespace: db-sandbox
+  syncPolicy:
+    automated:
+      prune: true
+    syncOptions:
+    - CreateNamespace=true

charts/kubezero-sql/update.sh

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+#!/bin/bash
+set -ex
+
+### MariaDB
+
+
+# Fetch dashboards

charts/kubezero-sql/values.yaml

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+mariadb-galera:
+  enabled: true
+
+  replicaCount: 2
+
+  # Passwords should be fixed otherwise helm will create random new ones each time we template|apply
+  rootUser:
+    password: 12345qwert
+  db:
+    password: 12345qwert
+  galera:
+    mariabackup:
+      password: 12345qwert
+
+  metrics:
+    serviceMonitor:
+      enabled: false
+
+    prometheusRules:
+      enabled: false