version: '3.8'

services:



  nacos1:
    container_name: nacos1
    image: nacos/nacos-server:latest
    hostname: nacos1
    restart: always
    ports:
      - target: 8848
        published: 8848
        protocol: tcp
        mode: host  #采用host模式（默认为ingress，配置较灵活，根据自己的需求也可调整为ingress，本案例防止nacos 采用 swarm集群调度，所以改为host模式，两台服务器之间通过内网及nacos端口访问，通过nginx配置对外服务）
    volumes:
      - cluster1_logs:/home/nacos/logs  #配置docker存储日志的卷
    environment:
      MODE: cluster
      PREFER_HOST_MODE: hostname
      NACOS_SERVERS: 192.168.3.75:8848 192.168.3.94:8848 192.168.3.142:8848
      NACOS_SERVER_IP: 192.168.3.75
      NACOS_SERVER_PORT: 8848
      NACOS_AUTH_ENABLE: 'true'     #1.2.0版本默认关闭登陆界面
      MYSQL_SERVICE_HOST: mysql
      MYSQL_SERVICE_DB_NAME: nacos_devtest
      MYSQL_SERVICE_PORT: 3306
      MYSQL_SERVICE_USER: nacos
      MYSQL_SERVICE_PASSWORD: 123456
    deploy:
      replicas: 1       #部署时，指定部署一个副本
      placement:
        constraints:
          - node.labels.env==docker-server-1
      restart_policy:
        condition: on-failure
    depends_on:
    - mysql
    networks:
       - srm



  nacos2:
    container_name: nacos2
    image: nacos/nacos-server:latest
    restart: always
    hostname: nacos2
    ports:
      - target: 8848
        published: 8848
        protocol: tcp
        mode: host
    volumes:
        - cluster2_logs:/home/nacos/logs
    environment:
      MODE: cluster
      PREFER_HOST_MODE: hostname
      NACOS_SERVERS: 192.168.3.75:8848 192.168.3.94:8848 192.168.3.142:8848
      NACOS_SERVER_IP: 192.168.3.94
      NACOS_SERVER_PORT: 8848
      NACOS_AUTH_ENABLE: 'true'
      MYSQL_SERVICE_HOST: mysql
      MYSQL_SERVICE_DB_NAME: nacos_devtest
      MYSQL_SERVICE_PORT: 3306
      MYSQL_SERVICE_USER: nacos
      MYSQL_SERVICE_PASSWORD: 123456
    deploy:
      replicas: 1
      placement:
        constraints:
          - node.labels.env==docker-server-2
      restart_policy:
        condition: on-failure
    depends_on:
    - mysql
    networks:
       - srm



  nacos3:
    container_name: nacos3
    image: nacos/nacos-server:latest
    restart: always
    hostname: nacos3
    ports:
      - target: 8848
        published: 8848
        protocol: tcp
        mode: host
    volumes:
        - cluster3_logs:/home/nacos/logs
    environment:
      MODE: cluster
      PREFER_HOST_MODE: hostname
      NACOS_SERVERS: 192.168.3.75:8848 192.168.3.94:8848 192.168.3.142:8848 
      NACOS_SERVER_IP: 192.168.3.142
      NACOS_SERVER_PORT: 8848
      NACOS_AUTH_ENABLE: 'true'
      MYSQL_SERVICE_HOST: mysql
      MYSQL_SERVICE_DB_NAME: nacos_devtest
      MYSQL_SERVICE_PORT: 3306
      MYSQL_SERVICE_USER: nacos
      MYSQL_SERVICE_PASSWORD: 123456
    deploy:
      replicas: 1
      placement:
        constraints:
          - node.labels.env==docker-server-3
      restart_policy:
        condition: on-failure
    depends_on:
    - mysql
    networks:
       - srm


  mysql:
    image: mysql:5.7.33
    restart: always
    container_name: mysql
    hostname: mysql
    ports:
      - 3306:3306
    volumes:
      - /data/software/nacos/mysql/data:/var/lib/mysql
      - /etc/localtime:/etc/localtime:ro
      - /etc/my.cnf:/etc/mysql/mysql.conf.d/my.cnf
    environment:
      TZ: Asia/Shanghai
      MYSQL_ROOT_PASSWORD: sonar
      MYSQL_DATABASE: nacos_devtest
    deploy:
      replicas: 1
      placement:
        constraints:
          - node.labels.env==docker-server-1
      restart_policy:
        condition: on-failure
    networks:
       - srm

volumes:
  cluster1_logs:
  cluster2_logs:
  cluster3_logs:


networks:
  srm:
    external: true

#https://blog.51cto.com/u_12898848/4054447