Common Chart example

deployment.yaml

{{ $params := dict "top" . "deployment" .Values.deployment -}}

{{ define "mariadb.env" }}
env:
- name: MARIADB_ROOT_PASSWORD
  valueFrom:
    secretKeyRef:
      name: {{ template "common.fullname" . }}
      key: mariadb-root-password
- name: MARIADB_USER
  value: {{ default "" .Values.mariadbUser | quote }}
- name: MARIADB_PASSWORD
  valueFrom:
    secretKeyRef:
      name: {{ template "common.fullname" . }}
      key: mariadb-password
- name: MARIADB_DATABASE
  value: {{ default "" .Values.mariadbDatabase | quote }}
{{ end }}
{{ $_ := set $params.deployment.pod "env" (include "mariadb.env" . | fromYaml).env }}

{{ define "mariadb.annotations" }}
annotations:
  pod.alpha.kubernetes.io/init-containers: '[
  {
    "name": "copy-custom-config",
    "image": "{{ .Values.deployment.pod.image }}",
    "imagePullPolicy": {{ .Values.deployment.pod.imagePullPolicy | quote }},
    "command": ["sh", "-c", "mkdir -p /bitnami/mariadb/conf && cp -n /bitnami/mariadb_config/my.cnf /bitnami/mariadb/conf/my_custom.cnf"],
    "volumeMounts": [
      {
        "name": "config",
        "mountPath": "/bitnami/mariadb_config"
      },
      {
        "name": "data",
        "mountPath": "/bitnami/mariadb"
      }
    ]
  }
]'
{{ end }}
{{ $_ := set $params.deployment.pod "annotations" (include "mariadb.annotations" . | fromYaml).annotations }}

{{ template "common.deployment" $params }}

service.yaml

{{ $params := dict "top" . "service" .Values.service -}}
{{ template "common.service" $params }}

values.yaml

service:
  ports:
  - name: mysql
    port: 3306
    targetPort: 3306

deployment:
  pod:
    name: mariadb
    image: bitnami/mariadb
    tag: 10.2.21-r0
    imagePullPolicy: IfNotPresent
    ports:
    - name: mysql
      containerPort: 3306
    livenessProbe:
      exec:
        command:
        - mysqladmin
        - ping
      initialDelaySeconds: 30
      timeoutSeconds: 5
    readinessProbe:
      exec:
        command:
        - mysqladmin
        - ping
      initialDelaySeconds: 5
      timeoutSeconds: 1
    persistence:
      enabled: true
      mounts:
      - path: /bitnami/mariadb