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Docker 部署 Nacos

Nacos 是阿里巴巴开源的服务发现、配置管理和服务管理平台。

快速开始​

单机模式​

docker run -d \
  --name nacos \
  -p 8848:8848 \
  -p 9848:9848 \
  -e MODE=standalone \
  -e TZ="Asia/Shanghai" \
  nacos/nacos-server:latest

使用 MySQL​

1. 创建数据库​

CREATE DATABASE nacos_config;
USE nacos_config;
SOURCE /path/to/nacos-mysql.sql;

2. 启动容器​

docker run -d \
  --name nacos \
  -p 8848:8848 \
  -p 9848:9848 \
  -e MODE=standalone \
  -e SPRING_DATASOURCE_PLATFORM=mysql \
  -e MYSQL_SERVICE_HOST=mysql \
  -e MYSQL_SERVICE_PORT=3306 \
  -e MYSQL_SERVICE_DB_NAME=nacos_config \
  -e MYSQL_SERVICE_USER=root \
  -e MYSQL_SERVICE_PASSWORD=123456 \
  --network freekit-net \
  nacos/nacos-server:latest

Docker Compose 部署​

version: '3.8'

services:
  mysql:
    image: mysql:8.0
    container_name: nacos-mysql
    environment:
      MYSQL_ROOT_PASSWORD: 123456
      MYSQL_DATABASE: nacos_config
    ports:
      - "3306:3306"
    volumes:
      - mysql-data:/var/lib/mysql
      - ./docker/nacos/sql:/docker-entrypoint-initdb.d
    command: --default-authentication-plugin=mysql_native_password

  nacos:
    image: nacos/nacos-server:latest
    container_name: nacos
    ports:
      - "8848:8848"
      - "9848:9848"
    environment:
      MODE: standalone
      SPRING_DATASOURCE_PLATFORM: mysql
      MYSQL_SERVICE_HOST: mysql
      MYSQL_SERVICE_PORT: 3306
      MYSQL_SERVICE_DB_NAME: nacos_config
      MYSQL_SERVICE_USER: root
      MYSQL_SERVICE_PASSWORD: 123456
    depends_on:
      - mysql

volumes:
  mysql-data:

高级配置​

集群模式​

version: '3.8'

services:
  nacos1:
    image: nacos/nacos-server:latest
    container_name: nacos1
    ports:
      - "8848:8848"
      - "9848:9848"
    environment:
      MODE: cluster
      NACOS_SERVERS: "nacos1:8848 nacos2:8848 nacos3:8848"
      SPRING_DATASOURCE_PLATFORM: mysql
      MYSQL_SERVICE_HOST: mysql
      MYSQL_SERVICE_PORT: 3306
      MYSQL_SERVICE_DB_NAME: nacos_config
      MYSQL_SERVICE_USER: root
      MYSQL_SERVICE_PASSWORD: 123456

  nacos2:
    image: nacos/nacos-server:latest
    container_name: nacos2
    ports:
      - "8849:8848"
      - "9849:9848"
    environment:
      MODE: cluster
      NACOS_SERVERS: "nacos1:8848 nacos2:8848 nacos3:8848"
      SPRING_DATASOURCE_PLATFORM: mysql
      MYSQL_SERVICE_HOST: mysql
      MYSQL_SERVICE_PORT: 3306
      MYSQL_SERVICE_DB_NAME: nacos_config
      MYSQL_SERVICE_USER: root
      MYSQL_SERVICE_PASSWORD: 123456

  nacos3:
    image: nacos/nacos-server:latest
    container_name: nacos3
    ports:
      - "8850:8848"
      - "9850:9848"
    environment:
      MODE: cluster
      NACOS_SERVERS: "nacos1:8848 nacos2:8848 nacos3:8848"
      SPRING_DATASOURCE_PLATFORM: mysql
      MYSQL_SERVICE_HOST: mysql
      MYSQL_SERVICE_PORT: 3306
      MYSQL_SERVICE_DB_NAME: nacos_config
      MYSQL_SERVICE_USER: root
      MYSQL_SERVICE_PASSWORD: 123456

  mysql:
    image: mysql:8.0
    container_name: nacos-mysql
    environment:
      MYSQL_ROOT_PASSWORD: 123456
      MYSQL_DATABASE: nacos_config
    ports:
      - "3306:3306"
    volumes:
      - mysql-data:/var/lib/mysql

volumes:
  mysql-data:

自定义配置​

docker run -d \
  --name nacos \
  -p 8848:8848 \
  -p 9848:9848 \
  -e MODE=standalone \
  -e JVM_XMS=256m \
  -e JVM_XMX=512m \
  -e JVM_XMN=128m \
  -v /usr/local/nacos/logs:/home/nacos/logs \
  -v /usr/local/nacos/conf/application.properties:/home/nacos/conf/application.properties \
  nacos/nacos-server:latest

常用命令​

# 查看日志
docker logs -f nacos

# 进入容器
docker exec -it nacos /bin/bash

# 查看配置
curl http://localhost:8848/nacos/v1/cs/configs?dataId=test&group=DEFAULT_GROUP

# 发布配置
curl -X POST "http://localhost:8848/nacos/v1/cs/configs?dataId=test&group=DEFAULT_GROUP&content=test"

运维建议​

建议说明
使用 MySQL生产环境使用 MySQL 持久化
集群部署部署 3 个以上节点
备份数据定期备份数据库
监控监控 JVM 内存和连接数

故障排查​

问题解决方案
启动失败检查 MySQL 连接
配置不生效检查命名空间和分组
内存不足调整 JVM 参数
连接超时检查网络配置

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