使用docker-compose部署nacos集群并通过nginx实现负载均衡

单机部署nacos+mysql

nacos_mysql.yml

version: "3"
services:
  nacos:
    image: nacos/nacos-server:latest
    container_name: nacos-standalone-mysql
    environment:
      - PREFER_HOST_MODE=hostname
      - MODE=standalone
      - SPRING_DATASOURCE_PLATFORM=mysql
      - MYSQL_SERVICE_HOST=mysql
      - MYSQL_SERVICE_DB_NAME=nacos_devtest
      - MYSQL_SERVICE_PORT=3306 #mysql数据库对应的端口
      - MYSQL_SERVICE_USER=nacos
      - MYSQL_SERVICE_PASSWORD=nacos
      - MYSQL_DATABASE_NUM=1 #数据源为1个
      - JVM_XMS=128m
      - JVM_XMX=128m
      - JVM_XMN=128m
    volumes:
      - /data/nacos/standalone-logs/:/home/nacos/logs
      - /data/nacos/init.d/custom.properties:/home/nacos/init.d/custom.properties
    ports:
      - "8848:8848"
      - "9555:9555"
    depends_on:
      - mysql
    restart: always
  mysql:
    container_name: mysql
    image: nacos/nacos-mysql:5.7 #用mysql8改下镜像就好nacos/nacos-mysql:8.0.16
    environment:
      - MYSQL_ROOT_PASSWORD=root
      - MYSQL_DATABASE=nacos_devtest
      - MYSQL_USER=nacos
      - MYSQL_PASSWORD=nacos
    volumes:
      - /data/mysql:/var/lib/mysql
    ports:
      - "3306:3306"
    restart: always

多台服务器通过ip部署集群

cluster_nacos1.yml

version: "3"
services:
  nacos:
    image: nacos/nacos-server:latest
    container_name: nacos-standalone-mysql
    environment:
      - MODE=cluster # 集群模式
      - NACOS_SERVERS=IP1:8848 IP2:8848 IP3:8848 # IP1,IP2是对应的服务器外网,PORT1,PORT2是对应的nacos服务端口
      - SPRING_DATASOURCE_PLATFORM=mysql
      - MYSQL_SERVICE_HOST=xxx.xxx.xx.xx# mysql数据库对应的ip
      - MYSQL_SERVICE_DB_NAME=nacos_devtest
      - MYSQL_SERVICE_PORT=3306 #mysql数据库对应的端口
      - MYSQL_SERVICE_USER=nacos
      - MYSQL_SERVICE_PASSWORD=nacos
      - MYSQL_DATABASE_NUM=1 #数据源为1个
      - JVM_XMS=128m
      - JVM_XMX=128m
      - JVM_XMN=128m
    volumes:
      - /data/nacos/standalone-logs/:/home/nacos/logs
      - /data/nacos/init.d/custom.properties:/home/nacos/init.d/custom.properties
    ports:
      - "8848:8848"
      - "9555:9555"
    restart: always

cluster_nacos2.yml

version: "3"
services:
  nacos:
    image: nacos/nacos-server:latest
    container_name: nacos-standalone-mysql
    environment:
      - MODE=cluster # 集群模式
      - NACOS_SERVERS=IP1:8848 IP2:8848 IP3:8848 # IP1,IP2是对应的服务器外网,PORT1,PORT2是对应的nacos服务端口
      - SPRING_DATASOURCE_PLATFORM=mysql
      - MYSQL_SERVICE_HOST=xxx.xxx.xx.xx# mysql数据库对应的ip
      - MYSQL_SERVICE_DB_NAME=nacos_devtest
      - MYSQL_SERVICE_PORT=3306 #mysql数据库对应的端口
      - MYSQL_SERVICE_USER=nacos
      - MYSQL_SERVICE_PASSWORD=nacos
      - MYSQL_DATABASE_NUM=1 #数据源为1个
      - JVM_XMS=128m
      - JVM_XMX=128m
      - JVM_XMN=128m
    volumes:
      - /data/nacos/standalone-logs/:/home/nacos/logs
      - /data/nacos/init.d/custom.properties:/home/nacos/init.d/custom.properties
    ports:
      - "8848:8848"
      - "9555:9555"
    restart: always

cluster_nacos3.yml

version: "3"
services:
  nacos:
    image: nacos/nacos-server:latest
    container_name: nacos-standalone-mysql
    environment:
      - MODE=cluster # 集群模式
      - NACOS_SERVERS=IP1:8848 IP2:8848 IP3:8848 # IP1,IP2是对应的服务器外网,PORT1,PORT2是对应的nacos服务端口
      - SPRING_DATASOURCE_PLATFORM=mysql
      - MYSQL_SERVICE_HOST=xxx.xxx.xx.xx# mysql数据库对应的ip
      - MYSQL_SERVICE_DB_NAME=nacos_devtest
      - MYSQL_SERVICE_PORT=3306 #mysql数据库对应的端口
      - MYSQL_SERVICE_USER=nacos
      - MYSQL_SERVICE_PASSWORD=nacos
      - MYSQL_DATABASE_NUM=1 #数据源为1个
      - JVM_XMS=128m
      - JVM_XMX=128m
      - JVM_XMN=128m
    volumes:
      - /data/nacos/standalone-logs/:/home/nacos/logs
      - /data/nacos/init.d/custom.properties:/home/nacos/init.d/custom.properties
    ports:
      - "8848:8848"
      - "9555:9555"
    restart: always

mysql

nacos_mysql.yml

version: "3"
services:
  mysql:
    container_name: mysql
    image: nacos/nacos-mysql:5.7 #用mysql8改下镜像就好nacos/nacos-mysql:8.0.16
    environment:
      - MYSQL_ROOT_PASSWORD=root
      - MYSQL_DATABASE=nacos_devtest
      - MYSQL_USER=nacos
      - MYSQL_PASSWORD=nacos
    volumes:
      - /data/mysql:/var/lib/mysql
    ports:
      - "3306:3306"
    restart: always

nginx配置

nacos_nginx.yaml

version: "3"
services:
  nginx:
    restart: always
    image: nginx:latest
    container_name: nginx
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - /etc/localtime:/etc/localtime:ro
      - /opt/nginx/conf.d/:/etc/nginx/conf.d/
      - /opt/nginx/nginx.conf:/etc/nginx/nginx.conf
      - /opt/nginx/logs:/var/log/nginx/
      - /opt/nginx/html:/var/www/html
      - /opt/nginx/ssl:/etc/nginx/ssl
    restart: always

nginx.conf配置文件，主要是改http中的配置

user  nginx;
worker_processes  1;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile        on;

    keepalive_timeout  65;
    
    

    upstream nacos_cluster{
        server nacos1的IP:port weight=1 max_fails=2 fail_timeout=30s;
        server nacos2的IP:port weight=1 max_fails=2 fail_timeout=30s;
        server nacos3的IP:port weight=1 max_fails=2 fail_timeout=30s;
    }
 
    server{
        listen nginx端口号;
        server_name nginx的IP;
        
        large_client_header_buffers 4 16k;     # 读取大型客户端请求头的缓冲区的最大数量和大小
        client_max_body_size 300m;     #设置nginx能处理的最大请求主体大小。
        client_body_buffer_size 128k;  #请求主体的缓冲区大小。 
        
        fastcgi_connect_timeout 300;
        fastcgi_send_timeout 300;
        fastcgi_read_timeout 300;
        fastcgi_buffer_size 64k;
        fastcgi_buffers 8 32k;
        fastcgi_busy_buffers_size 128k;
        fastcgi_temp_file_write_size 64k;

    location / {
        proxy_pass http://nacos_cluster;
    }
    }
    include /etc/nginx/conf.d/*.conf;
}

mysql数据库建表语句

大家要用mysql官网的数据库镜像可以自建表，下载对应版本的nacos，mysql数据库文件在nacos/conf/nacos-mysql.sql就是了，进入mysql数据库导入即可。

属性配置列表

高级配置

如果上面的属性列表无法满足你的需求时,可以挂载custom.properties到/home/nacos/init.d/ 目录,然后在里面像使用Spring Boot的application.properties文件一样配置属性, 并且这个文件配置的属性**优先级高于application.properties