增加helm部署mariadb集群

manifests/mariadb-cluster/mariadb/.helmignore

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+.git

manifests/mariadb-cluster/mariadb/Chart.yaml

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+name: mariadb
+version: 5.5.0
+appVersion: 10.1.37
+description: Fast, reliable, scalable, and easy to use open-source relational database system. MariaDB Server is intended for mission-critical, heavy-load production systems as well as for embedding into mass-deployed software. Highly available MariaDB cluster.
+keywords:
+- mariadb
+- mysql
+- database
+- sql
+- prometheus
+home: https://mariadb.org
+icon: https://bitnami.com/assets/stacks/mariadb/img/mariadb-stack-220x234.png
+sources:
+- https://github.com/bitnami/bitnami-docker-mariadb
+- https://github.com/prometheus/mysqld_exporter
+maintainers:
+- name: Bitnami
+  email: [email protected]
+engine: gotpl

manifests/mariadb-cluster/mariadb/OWNERS

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+approvers:
+- prydonius
+- tompizmor
+- sameersbn
+- carrodher
+- juan131
+reviewers:
+- prydonius
+- tompizmor
+- sameersbn
+- carrodher
+- juan131

manifests/mariadb-cluster/mariadb/files/docker-entrypoint-initdb.d/README.md

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+You can copy here your custom .sh, .sql or .sql.gz file so they are executed during the first boot of the image.
+
+More info in the [bitnami-docker-mariadb](https://github.com/bitnami/bitnami-docker-mariadb#initializing-a-new-instance) repository.

manifests/mariadb-cluster/mariadb/templates/NOTES.txt

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+
+Please be patient while the chart is being deployed
+
+Tip:
+
+  Watch the deployment status using the command: kubectl get pods -w --namespace {{ .Release.Namespace }} -l release={{ .Release.Name }}
+
+Services:
+
+  echo Master: {{ template "mariadb.fullname" . }}.{{ .Release.Namespace }}.svc.cluster.local:{{ .Values.service.port }}
+{{- if .Values.replication.enabled }}
+  echo Slave:  {{ template "slave.fullname" . }}.{{ .Release.Namespace }}.svc.cluster.local:{{ .Values.service.port }}
+{{- end }}
+
+Administrator credentials:
+
+  Username: root
+  Password : $(kubectl get secret --namespace {{ .Release.Namespace }} {{ template "mariadb.fullname" . }} -o jsonpath="{.data.mariadb-root-password}" | base64 --decode)
+
+To connect to your database:
+
+  1. Run a pod that you can use as a client:
+
+      kubectl run {{ template "mariadb.fullname" . }}-client --rm --tty -i --restart='Never' --image  {{ template "mariadb.image" . }} --namespace {{ .Release.Namespace }} --command -- bash
+
+  2. To connect to master service (read/write):
+
+      mysql -h {{ template "mariadb.fullname" . }}.{{ .Release.Namespace }}.svc.cluster.local -uroot -p {{ .Values.db.name }}
+
+{{- if .Values.replication.enabled }}
+
+  3. To connect to slave service (read-only):
+
+      mysql -h {{ template "slave.fullname" . }}.{{ .Release.Namespace }}.svc.cluster.local -uroot -p {{ .Values.db.name }}
+{{- end }}
+
+To upgrade this helm chart:
+
+  1. Obtain the password as described on the 'Administrator credentials' section and set the 'rootUser.password' parameter as shown below:
+
+      ROOT_PASSWORD=$(kubectl get secret --namespace {{ .Release.Namespace }} {{ template "mariadb.fullname" . }} -o jsonpath="{.data.mariadb-root-password}" | base64 --decode)
+      helm upgrade {{ .Release.Name }} stable/mariadb --set rootUser.password=$ROOT_PASSWORD

manifests/mariadb-cluster/mariadb/templates/_helpers.tpl

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+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "mariadb.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "mariadb.fullname" -}}
+{{- if .Values.fullnameOverride -}}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- if contains $name .Release.Name -}}
+{{- printf .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
+{{- end -}}
+
+{{- define "master.fullname" -}}
+{{- if .Values.replication.enabled -}}
+{{- printf "%s-%s" .Release.Name "mariadb-master" | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s" .Release.Name "mariadb" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
+
+{{- define "slave.fullname" -}}
+{{- printf "%s-%s" .Release.Name "mariadb-slave" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{- define "mariadb.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Return the proper MariaDB image name
+*/}}
+{{- define "mariadb.image" -}}
+{{- $registryName := .Values.image.registry -}}
+{{- $repositoryName := .Values.image.repository -}}
+{{- $tag := .Values.image.tag | toString -}}
+{{/*
+Helm 2.11 supports the assignment of a value to a variable defined in a different scope,
+but Helm 2.9 and 2.10 doesn't support it, so we need to implement this if-else logic.
+Also, we can't use a single if because lazy evaluation is not an option
+*/}}
+{{- if .Values.global }}
+    {{- if .Values.global.imageRegistry }}
+        {{- printf "%s/%s:%s" .Values.global.imageRegistry $repositoryName $tag -}}
+    {{- else -}}
+        {{- printf "%s/%s:%s" $registryName $repositoryName $tag -}}
+    {{- end -}}
+{{- else -}}
+    {{- printf "%s/%s:%s" $registryName $repositoryName $tag -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Return the proper metrics image name
+*/}}
+{{- define "metrics.image" -}}
+{{- $registryName :=  .Values.metrics.image.registry -}}
+{{- $repositoryName := .Values.metrics.image.repository -}}
+{{- $tag := .Values.metrics.image.tag | toString -}}
+{{- printf "%s/%s:%s" $registryName $repositoryName $tag -}}
+{{- end -}}
+
+{{ template "mariadb.initdbScriptsCM" . }}
+{{/*
+Get the initialization scripts ConfigMap name.
+*/}}
+{{- define "mariadb.initdbScriptsCM" -}}
+{{- if .Values.initdbScriptsConfigMap -}}
+{{- printf "%s" .Values.initdbScriptsConfigMap -}}
+{{- else -}}
+{{- printf "%s-init-scripts" (include "mariadb.fullname" .) -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "mariadb.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create -}}
+    {{ default (include "mariadb.fullname" .) .Values.serviceAccount.name }}
+{{- else -}}
+    {{ default "default" .Values.serviceAccount.name }}
+{{- end -}}
+{{- end -}}

manifests/mariadb-cluster/mariadb/templates/initialization-configmap.yaml

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+{{- if and (or (.Files.Glob "files/docker-entrypoint-initdb.d/*.{sh,sql,sql.gz}") .Values.initdbScripts) (not .Values.initdbScriptsConfigMap) }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "master.fullname" . }}-init-scripts
+  labels:
+    app: {{ template "mariadb.name" . }}
+    chart: {{ template "mariadb.chart" . }}
+    release: {{ .Release.Name | quote }}
+    heritage: {{ .Release.Service | quote }}
+    component: "master"
+{{- if and (.Files.Glob "files/docker-entrypoint-initdb.d/*.sql.gz") (not .Values.initdbScriptsConfigMap) }}
+binaryData:
+{{- $root := . }}
+{{- range $path, $bytes := .Files.Glob "files/docker-entrypoint-initdb.d/*.sql.gz" }}
+  {{ base $path }}: {{ $root.Files.Get $path | b64enc | quote }}
+{{- end }}
+{{- end }}
+data:
+{{- if and (.Files.Glob "files/docker-entrypoint-initdb.d/*.{sh,sql}") (not .Values.initdbScriptsConfigMap) }}
+{{ (.Files.Glob "files/docker-entrypoint-initdb.d/*.{sh,sql}").AsConfig | indent 2 }}
+{{- end }}
+{{- with .Values.initdbScripts }}
+{{ toYaml . | indent 2 }}
+{{- end }}
+{{ end }}

manifests/mariadb-cluster/mariadb/templates/master-configmap.yaml

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+{{- if .Values.master.config }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "master.fullname" . }}
+  labels:
+    app: {{ template "mariadb.name" . }}
+    component: "master"
+    chart: {{ template "mariadb.chart" . }}
+    release: {{ .Release.Name | quote }}
+    heritage: {{ .Release.Service | quote }}
+data:
+  my.cnf: |-
+{{ .Values.master.config | indent 4 }}
+{{- end -}}