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docker compose 快速搭建Nacos单节点测试环境(mysql 版)

article 2024/12/1 13:40:39

〓 参考：
https://nacos.io/docs/latest/quickstart/quick-start-docker/?source=wuyi
https://github.com/nacos-group/nacos-docker
https://nacos.io/docs/latest/manual/admin/deployment/deployment-standalone/?source=wuyi
https://nacos.io/docs/latest/manual/admin/deployment/deployment-overview/?source=wuyi

1.在宿主机创建相关文件的映射挂载目录

● nacos - 挂载目录

mkdir -p /opt/docker/nacos/{data,logs}
sudo chmod -R 777 /opt/docker/nacos/{data,logs}

● mysql - 挂载目录

mkdir -p /opt/docker/mysql/{conf,data,logs,init}
sudo chmod -R 777 /opt/docker/mysql/{conf,data,logs,init}

2.下载nacos官方提供的mysql数据库初始化脚本并存放到init脚本目录下

● 下载 https://github.com/alibaba/nacos/blob/2.2.3/distribution/conf/mysql-schema.sql
● 将 mysql-schema.sql 存放在上面创建的 /opt/docker/mysql/init 挂载目录下

3.编写 docker-compose-nacos-mysql.yml 编排文件

version: '3.8'
services:
  nacos-server:
    image: nacos/nacos-server:v2.2.3
    container_name: nacos-standalone-server
    restart: unless-stopped
    privileged: true
    ports:
      - "8848:8848"
      - "9848:9848"
    volumes:
      - /opt/docker/nacos/logs:/home/nacos/logs
      - /opt/docker/nacos/data:/home/nacos/data
      - /etc/localtime:/etc/localtime:ro
    environment:
      NACOS_REPLICAS: 1
      NACOS_SERVER_PORT: 8848
      MODE: standalone
      PREFER_HOST_MODE: hostname
      SPRING_DATASOURCE_PLATFORM: mysql    # 数据源平台为 MySQL
      MYSQL_SERVICE_HOST: mysql            # 或者使用IP地址，例如：192.168.110.20
      MYSQL_SERVICE_PORT: 3306
      MYSQL_SERVICE_DB_NAME: nacos_config  # nacos 使用的数据库名
      MYSQL_SERVICE_USER: nacos            # nacos 服务访问 mysql 数据库的用户名
      MYSQL_SERVICE_PASSWORD: nacos123     # nacos 服务访问 mysql 数据库的用户名对应密码
      MYSQL_SERVICE_DB_PARAM: "characterEncoding=utf8&connectTimeout=10000&socketTimeout=30000&autoReconnect=true&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=Asia/Shanghai"
      NACOS_AUTH_ENABLE: true              # 开启鉴权功能
      NACOS_AUTH_IDENTITY_KEY: 2222
      NACOS_AUTH_IDENTITY_VALUE: 2xxx
      NACOS_AUTH_TOKEN: SecretKey012345678901234567890123456789012345678901234567890123456789
      NACOS_AUTH_TOKEN_EXPIRE_SECONDS: 18000
      JAVA_OPT_EXT: "-Xmx256M -Xms256M -Xmn128M"
    networks:
      nacos:
        ipv4_address: 172.60.0.10
    depends_on:
      mysql:
        condition: service_healthy

  mysql:
    image: mysql:8.0.40
    container_name: mysql-nacos-server
    restart: unless-stopped
    privileged: true
    ports:
      - "3306:3306"
    volumes: # 映射配置 {宿主机目录:容器内目录}
      - /opt/docker/mysql/data:/var/lib/mysql
      - /opt/docker/mysql/logs:/var/log/mysql
      # - /opt/nacos_docker/mysql/conf/my.cnf:/etc/mysql/my.cnf -- 根据需要编写自定义my.cnf配置文件
      - /opt/docker/mysql/init/mysql-schema.sql:/docker-entrypoint-initdb.d/mysql-schema.sql
      - /etc/localtime:/etc/localtime:ro
    environment:
      MYSQL_ROOT_PASSWORD: Root@666
      MYSQL_DATABASE: nacos_config   # 启动后会创建的数据库
      MYSQL_USER: nacos              # nacos_config 数据库的访问用户名
      MYSQL_PASSWORD: nacos123       # nacos_config 数据库的访问用户名对应密码
      LANG: C.UTF-8
    command:
      --max_connections=1024
      --character-set-server=utf8mb4
      --collation-server=utf8mb4_general_ci
      --default-authentication-plugin=mysql_native_password
      --lower_case_table_names=1
      --max_allowed_packet=128M
      --explicit_defaults_for_timestamp=true
    networks:
      nacos:
        ipv4_address: 172.60.0.12
    healthcheck:
      test: [ "CMD", "mysqladmin" ,"ping", "-h", "localhost" ]
      interval: 10s
      timeout: 10s
      retries: 3

networks:   # 自定义 docker 网络
  nacos:
    driver: bridge
    ipam:
      config:
        - subnet: 172.60.0.0/24  # 定义网络注意不要出现子网冲突
          gateway: 172.60.0.1


〓 校验配置格式是否有误

$ docker-compose -f docker-compose-nacos-mysql.yml config

〓 几点说明

● 网络设置要注意网段，子网冲突会报错：Error response from daemon: Pool overlaps with other one on this address space
● docker-entrypoint-initdb.d 目录：这是一个docker安装MySQL服务的特殊目录，用于执行一些初始化数据库的脚本任务


4.拉取镜像

docker pull nacos/nacos-server:v2.2.3
docker pull mysql:8.0.40


5.创建并启动容器

$ docker-compose -f docker-compose-nacos-mysql.yml up -d

● 其他运维命令
$ docker-compose -f docker-compose-nacos-mysql.yml down
$ docker-compose -f docker-compose-nacos-mysql.yml stop {容器名 | ID}
$ docker-compose -f docker-compose-nacos-mysql.yml start {容器名 | ID}

● 查看容器 IP 地址分配是否正确
docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' mysql-nacos-server
docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' nacos-standalone-server


6.访问确认安装成果

ip:/nacos/index.html

访问业务正常显示，则搭建成功，Over ！