docker-compose.yml

version: '3.4'
services:
  mariadb_node01:
    hostname: mariadb_node01
    image: garutilorenzo/mariadb-galera:10.5
    volumes:
      - type: volume
        source: mariadb_node01
        target: /var/lib/mysql/
        volume:
          nocopy: true
    networks:
       cluster:
          ipv4_address: 172.16.0.2
    environment:
       MYSQL_ROOT_PASSWORD: root
       MYSQL_USER: test
       MYSQL_PASSWORD: P@ssw0rd
       MYSQL_DATABASE: db_test
       CLUSTER_MEMBERS: mariadb_node02,mariadb_node03
       CLUSTER_NAME: mariadb-galera-cluster
       BOOTSTRAP: 1

  mariadb_node02:
    hostname: mariadb_node02
    image: garutilorenzo/mariadb-galera:10.5
    restart: always
    volumes:
      - type: volume
        source: mariadb_node02
        target: /var/lib/mysql/
        volume:
          nocopy: true
    networks:
       cluster:
          ipv4_address: 172.16.0.3
    environment:
       MYSQL_ROOT_PASSWORD: root
       CLUSTER_MEMBERS: mariadb_node01,mariadb_node03
       CLUSTER_NAME: mariadb-galera-cluster
    depends_on:
      - "mariadb_node01"

  mariadb_node03:
    hostname: mariadb_node03
    image: garutilorenzo/mariadb-galera:10.5
    restart: always
    volumes:
      - type: volume
        source: mariadb_node03
        target: /var/lib/mysql/
        volume:
          nocopy: true
    networks:
       cluster:
          ipv4_address: 172.16.0.4
    environment:
       MYSQL_ROOT_PASSWORD: root
       CLUSTER_MEMBERS: mariadb_node01,mariadb_node02
       CLUSTER_NAME: mariadb-galera-cluster
    depends_on:
      - "mariadb_node01"

volumes:
 mariadb_node01:
 mariadb_node02:
 mariadb_node03:

networks:
  cluster:
    ipam:
      driver: default
      config:
      - subnet: 172.16.0.0/16