基于Docker搭建Nacos集群

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file

准备机器3台

  • 192.168.1.160
  • 192.168.1.161
  • 192.168.1.162

docker安装

CentOS 7下安装Docker及基础操作

安装

mysql
Nacos
  • 创建Nacos的工作目录

    // 每个节点都创建
    mkdir -p /usr/local/docker/nacos-server
    mkdir -p /usr/local/docker/nacos-server/env
    mkdir -p /usr/local/docker/nacos-server/logs
    mkdir -p /usr/local/docker/nacos-server/init.d
    
  • 调整custom.properties

    vim /usr/local/docker/nacos-server/init.d/custom.properties
    
    // 添加以下配置
    #spring.security.enabled=false
    #management.security=false
    #security.basic.enabled=false
    #nacos.security.ignore.urls=/**
    #management.metrics.export.elastic.host=http://localhost:9200
    # metrics for prometheus
    management.endpoints.web.exposure.include=*
    
    # metrics for elastic search
    #management.metrics.export.elastic.enabled=false
    #management.metrics.export.elastic.host=http://localhost:9200
    
    # metrics for influx
    #management.metrics.export.influx.enabled=false
    #management.metrics.export.influx.db=springboot
    #management.metrics.export.influx.uri=http://localhost:8086
    #management.metrics.export.influx.auto-create-db=true
    #management.metrics.export.influx.consistency=one
    #management.metrics.export.influx.compressed=true
    
    
  • 调整nacos-hostname.env

    vim /usr/local/docker/nacos-server/env/nacos-hostname.env
    
    #nacos dev env
    # 首选主机模式
    PREFER_HOST_MODE=hostname
    # 当前主机的IP
    NACOS_SERVER_IP=192.168.1.160
    # 集群的各个节点
    NACOS_SERVERS=192.168.1.160:8848 192.168.1.161:8848 192.168.1.162:8848
    # 数据库的配置
    MYSQL_SERVICE_HOST=192.168.1.100
    MYSQL_SERVICE_DB_NAME=nacos
    MYSQL_SERVICE_PORT=3306
    MYSQL_SERVICE_USER=root
    MYSQL_SERVICE_PASSWORD=root
    
    # 从节点 这里就使用单节点测试,因此就不配置从节点
    #MYSQL_SLAVE_SERVICE_HOST=xxx 
    #MYSQL_SLAVE_SERVICE_PORT=3306
    
    # JVM参数 默认是2G 如果使用虚拟机,内存没有2G,就需要调整这里的参数,否则将无法启动
    JVM_XMS=256m
    JVM_XMX=256m
    JVM_XMN=256m
    
  • 将配置文件拷贝到其他两台机器

    scp -r /usr/local/docker/nacos-server/env/nacos-hostname.env  root@192.168.1.161:/usr/local/docker/nacos-server/env/nacos-hostname.env
    scp -r /usr/local/docker/nacos-server/env/nacos-hostname.env  root@192.168.1.162:/usr/local/docker/nacos-server/env/nacos-hostname.env
    
    scp -r /usr/local/docker/nacos-server/init.d/custom.properties  root@192.168.1.161:/usr/local/docker/nacos-server/init.d/custom.properties
    scp -r /usr/local/docker/nacos-server/init.d/custom.properties  root@192.168.1.162:/usr/local/docker/nacos-server/init.d/custom.properties
    
  • docker启动(3个节点)

    docker run \
    -p 8848:8848 \
    --restart=always \
    --name nacos-node \
    --env-file=/usr/local/docker/nacos-server/env/nacos-hostname.env \
    -v /usr/local/docker/nacos-server/logs:/home/nacos/logs \
    -v /usr/local/docker/nacos-server/init.d/custom.properties:/home/nacos/init.d/custom.properties \
    -d nacos/nacos-server
    

    file

  • 异常查看

    // 如果出现异常,可以在/usr/local/docker/nacos-server/logs目录下查看
    tail -f /usr/local/docker/nacos-server/logs/nacos.log
    

测试

访问任意节点的8848端口; 如: 192.168.1.160:8848/nacos 默认用户名和密码为: nacos/nacos ;登录之后查看节点即可看到如下效果.
file

当停用任何一个节点,都不会影响正常的使用

Nginx代理Nacos集群

  • 创建nacos.conf;添加以下配置

    upstream nacos_server {
       server 192.168.1.160:8848;
       server 192.168.1.161:8848;
       server 192.168.1.162:8848;
    }
    
    server {
        listen 80;
        listen 443 ssl;
        #填写绑定证书的域名
        server_name nacos.你的域名;
        #ssl on;
        ssl_certificate /你的证书路径.crt;
        ssl_certificate_key /你的密钥路径.key;
        ssl_session_timeout 5m;
        #按照这个协议配置
        ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
        #按照这个套件配置
        ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:HIGH:!aNULL:!MD5:!RC4:!DHE;
        ssl_prefer_server_ciphers on;
    
        charset utf-8;
    
        resolver 223.5.5.5 223.6.6.6 1.2.4.8 114.114.114.114 valid=3600s;
    
        location / {
            proxy_read_timeout 90;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $http_connection;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;
            proxy_cache_bypass $http_upgrade;
    
            proxy_pass http://nacos_server;
        }
    }
    
  • 重启服务

    sbin/nginx -t
    sbin/nginx -s reload
    

    file



标题:基于Docker搭建Nacos集群
作者:码霸霸
地址:https://blog.lupf.cn/articles/2020/05/21/1590058654840.html