version: '3.8'

# Deploy with:
#   docker stack deploy -c mariadb.yml mariadb
#
# Runs on: adder-ghost

services:
  mariadb:
    image: mariadb:11
    environment:
      MYSQL_ROOT_PASSWORD: ${MARIADB_ROOT_PASSWORD}
    ports:
      - target: 3306
        published: 3306
        protocol: tcp
        mode: host
    volumes:
      - mariadb_data:/var/lib/mysql
    networks:
      - overlay-net
    deploy:
      replicas: 1
      placement:
        constraints:
          - node.hostname == adder-ghost
      restart_policy:
        condition: on-failure
        delay: 5s
        max_attempts: 3

volumes:
  mariadb_data:

networks:
  overlay-net:
    external: true
    name: ${OVERLAY_NETWORK:-homelab-net}