docker-compose.yaml

version: "3.9"
services:
  server-1:
    image: alejandrodu/mariadb
    container_name: server-1
    environment:
      - MARIADB_CREATE_DATABASE=demo
      - MARIADB_CREATE_USER=user:Password123!
      - MARIADB_CREATE_REPLICATION_USER=replication_user:ReplicationPassword123!
      - MARIADB_CREATE_MAXSCALE_USER=maxscale_user:MaxScalePassword123!

  server-2:
    image: alejandrodu/mariadb
    container_name: server-2
    environment:
      - MARIADB_REPLICATE_FROM=replication_user:ReplicationPassword123!@server-1:3306

  server-3:
    image: alejandrodu/mariadb
    container_name: server-3
    environment:
      - MARIADB_REPLICATE_FROM=replication_user:ReplicationPassword123!@server-1:3306

  maxscale:
    image: alejandrodu/mariadb-maxscale
    container_name: maxscale
    command: --admin_host 0.0.0.0 --admin_secure_gui false
    ports:
      - "8989:8989"
      - "3306:4000"
      - "27017:27017"
    environment:
      - MAXSCALE_USER=maxscale_user:MaxScalePassword123!
      - MARIADB_HOST_1=server-1 3306
      - MARIADB_HOST_2=server-2 3306
      - MARIADB_HOST_3=server-3 3306