services:
  mariadb:
    image: mariadb:11.4
    container_name: mariadb-node${MGDB_NODE_NUMBER}
    restart: always
    network_mode: host
    environment:
      - MARIADB_ROOT_PASSWORD=${DB_ROOT_PASSWORD}
      - MARIADB_USER=${DB_ADMIN_USER}
      - MARIADB_PASSWORD=${DB_ADMIN_PASSWORD}
      - MARIADB_DATABASE=initial_db
      # Pass these through for the init script
      - APP_REGISTRY=${APP_REGISTRY}
      - REPL_USER=${REPL_USER}
      - REPL_PASSWORD=${REPL_PASSWORD}
      # Dynamic password variables for your apps
      - FORGEJO_DB_PASS=${FORGEJO_DB_PASS}
      - GUACAMOLE_DB_PASS=${GUACAMOLE_DB_PASS}
      - GRAFANA_DB_PASS=${GRAFANA_DB_PASS}
    volumes:
      - /docker/maria/data:/var/lib/mysql
      - /docker/maria/conf:/etc/mysql/conf.d
      - /docker/maria/init:/docker-entrypoint-initdb.d
    command:
      - mariadbd
      # NETWORK BINDING
      - --bind-address=0.0.0.0
      # ASYNC REPLICATION CONFIG
      - --log-bin=mysql-bin
      - --binlog-format=ROW
      - --server-id=${MGDB_NODE_NUMBER}
      - --log-slave-updates=ON
      - --gtid-strict-mode=ON
      # COLLISION PREVENTION (Odds vs Evens)
      - --auto-increment-increment=2
      - --auto-increment-offset=${MGDB_NODE_NUMBER}
      # PERFORMANCE
      - --innodb-buffer-pool-size=1G # Adjust based on your RAM
      - --innodb-flush-log-at-trx-commit=2 # 1=Safest, 2=Faster