MariaDB Kubernets

mariadb-persistent-volume-claim.yml

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: phoenix-main-mariadb
  annotations:
    volumeType: local
spec:
  accessModes:
    - ReadWriteOnce
  storageClassName: local-path
  resources:
    requests:
      storage: 1Gi

mariadb-service.yml

apiVersion: v1
kind: Service
metadata:
  name: phoenix-main-mariadb
spec:
  selector:
    tier: backend
    layer: database
  ports:
    - protocol: TCP
      port: 3306
      targetPort: 3306

mariadb-statefulset.yml

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: phoenix-main-mariadb
  labels:
    tier: backend
    layer: database
spec:
  selector:
    matchLabels:
      tier: backend
      layer: database
  serviceName: phoenix-main-mariadb
  replicas: 1
  template:
    metadata:
      labels:
        tier: backend
        layer: database
    spec:
      containers:
      - name: mariadb
        image: mariadb
        ports:
        - name: mariadb-port
          containerPort: 3306
        env:
        - name: MARIADB_ROOT_PASSWORD
          valueFrom:
            secretKeyRef:
              name: phoenix-main-mariadb
              key: root-password
        - name: MARIADB_DATABASE
          value: maindb
        - name: MARIADB_MYSQL_LOCALHOST_USER
          value: "1"
        - name: MARIADB_USER
          valueFrom:
            secretKeyRef:
              name: phoenix-main-mariadb
              key: db-username
        - name: MARIADB_PASSWORD
          valueFrom:
            secretKeyRef:
              name: phoenix-main-mariadb
              key: db-password
        - name: MARIADB_INITDB_SKIP_TZINFO
          value: "1"
        volumeMounts:
        - name: data
          mountPath: /var/lib/mysql
          subPath: mysql
        resources:
          requests:
            cpu: 300m
            memory: 256Mi
        livenessProbe:
          exec:
            command:
            - bash
            - -c
            - mysqladmin -u ${MARIADB_USER} -p${MARIADB_PASSWORD} ping
          periodSeconds: 10
        startupProbe:
          exec:
            command:
            - bash
            - -c
            - mysql -u ${MARIADB_USER} -p${MARIADB_PASSWORD} -e "SELECT 1"
          periodSeconds: 10
          failureThreshold: 60 # total 600s = 10min to startup and configure all the databases
      volumes:
      - name: data
        persistentVolumeClaim:
          claimName: phoenix-main-mariadb

secrets.yml

apiVersion: v1
kind: Secret
metadata:
  name: phoenix-main-mariadb
type: Opaque
data:
  # notmyuser
  db-username: bm90bXl1c2Vy
  # notmypassword:-)
  db-password: bm90bXlwYXNzd29yZDotKQ==
  # notmyrootpassword:-)
  root-password: bm90bXlyb290cGFzc3dvcmQ6LSk=