tnb0/ha/mysql80/docker-compose3.yml

services:
  mysql80-3:
    image: registry.cn-chengdu.aliyuncs.com/reghao/mysql:8.0.36
    container_name: mysql80-3
    hostname: mysql80-3
    restart: always
    network_mode: host
    environment:
      MYSQL_ROOT_PASSWORD: "Root_123456"
    volumes:
      - /etc/localtime:/etc/localtime:ro
      - /opt/docker/mysql/conf/my.cnf:/etc/mysql/conf.d/my.cnf
      - /opt/docker/mysql/data:/var/lib/mysql
      - /opt/docker/mysql/log:/var/log/mysql
    # 🚨 容器日志限制
    logging:
      driver: "json-file"
      options:
        max-size: "100m"
        max-file: "3"
    # 🚨 资源限制（与节点 1、2 保持严格对称）
    deploy:
      resources:
        limits:
          cpus: '2.0'
          memory: 4G
        reservations:
          cpus: '1.0'
          memory: 2G
    healthcheck:
      test: [ "CMD", "mysqladmin", "ping", "-h", "127.0.0.1", "-u", "root", "-p$${MYSQL_ROOT_PASSWORD}" ]
      interval: 5s
      timeout: 5s
      retries: 10