nacos1.2.0集群搭建|nacos1.2.0集群搭建 linux docker swarm环境 nacos1.2.0集群搭建linuxdockerswar

1.环境准备 nacos 的官方地址
文档手册
https://nacos.io/zh-cn/index.html
下载页面
https://github.com/alibaba/nacos/releases
由于服务器资源有限，方便测试，我主要采用2台centos云服务器，并且已经具备docker swarm环境（搭建参见 docker swarm环境），来搭建4个节点的nacos集群服务：
两台服务器，每台分别部署两个nacos节点，IP及端口如下：

192.168.62.15:9851 192.168.62.15:9850 192.168.62.37:9848 192.168.62.37:9849

集群需要mysql数据库环境支持，脚本conf/nacos-mysql.sql。
【nacos1.2.0集群搭建|nacos1.2.0集群搭建 linux docker swarm环境】同时4个节点通过nginx通过对外服务，nginx搭建请参考其他文件，nginx配置在后面会给出。
2.docker-cluster.yml文件通过swarm集群，配置好docker-compose文件内容，自动部署到不同的docker节点

version: '3.7'services: nacos_cluster_1: container_name: nacos_cluster_1 image: nacos/nacos-server:1.2.0 restart: always ports: - target: 9848 published: 9848 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: PREFER_HOST_MODE: ip NACOS_SERVERS: 192.168.62.37:9848 192.168.62.37:9849 192.168.62.15:9850 192.168.62.15:9851 NACOS_SERVER_IP: 192.168.62.37 NACOS_SERVER_PORT: 9848 NACOS_AUTH_ENABLE: 'true'#1.2.0版本默认关闭登陆界面 MYSQL_SERVICE_HOST: 192.168.62.37 MYSQL_SERVICE_DB_NAME: nacos_devtest MYSQL_SERVICE_PORT: 23306 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#根据标签指定部署到的节点，标签需要自己事先配置好（本案例节点docker-server-1为192.168.62.37docker-server-2为192.168.62.15） restart_policy: condition: on-failure nacos_cluster_2: container_name: nacos_cluster_2 image: nacos/nacos-server:1.2.0 restart: always ports: - target: 9849 published: 9849 protocol: tcp mode: host volumes: - cluster2_logs:/home/nacos/logs environment: PREFER_HOST_MODE: ip NACOS_SERVERS: 192.168.62.37:9848 192.168.62.37:9849 192.168.62.15:9850 192.168.62.15:9851 NACOS_SERVER_IP: 192.168.62.37 NACOS_SERVER_PORT: 9849 NACOS_AUTH_ENABLE: 'true' MYSQL_SERVICE_HOST: 192.168.62.37 MYSQL_SERVICE_DB_NAME: nacos_devtest MYSQL_SERVICE_PORT: 23306 MYSQL_SERVICE_USER: nacos MYSQL_SERVICE_PASSWORD: 123456 deploy: replicas: 1 placement: constraints: - node.labels.env==docker-server-1 restart_policy: condition: on-failure nacos_cluster_3: container_name: nacos_cluster_3 image: nacos/nacos-server:1.2.0 restart: always ports: - target: 9850 published: 9850 protocol: tcp mode: host volumes: - cluster3_logs:/home/nacos/logs environment: PREFER_HOST_MODE: ip NACOS_SERVERS: 192.168.62.37:9848 192.168.62.37:9849 192.168.62.15:9850 192.168.62.15:9851 NACOS_SERVER_IP: 192.168.62.15 NACOS_SERVER_PORT: 9850 NACOS_AUTH_ENABLE: 'true' MYSQL_SERVICE_HOST: 192.168.62.37 MYSQL_SERVICE_DB_NAME: nacos_devtest MYSQL_SERVICE_PORT: 23306 MYSQL_SERVICE_USER: nacos MYSQL_SERVICE_PASSWORD: 123456 deploy: replicas: 1 placement: constraints: - node.labels.env==docker-server-2 restart_policy: condition: on-failure nacos_cluster_4: container_name: nacos_cluster_4 image: nacos/nacos-server:1.2.0 restart: always ports: - target: 9851 published: 9851 protocol: tcp mode: host volumes: - cluster4_logs:/home/nacos/logs environment: PREFER_HOST_MODE: ip NACOS_SERVERS: 192.168.62.37:9848 192.168.62.37:9849 192.168.62.15:9850 192.168.62.15:9851 NACOS_SERVER_IP: 192.168.62.15 NACOS_SERVER_PORT: 9851 NACOS_AUTH_ENABLE: 'true' MYSQL_SERVICE_HOST: 192.168.62.37 MYSQL_SERVICE_DB_NAME: nacos_devtest MYSQL_SERVICE_PORT: 23306 MYSQL_SERVICE_USER: nacos MYSQL_SERVICE_PASSWORD: 123456 deploy: replicas: 1 placement: constraints: - node.labels.env==docker-server-2 restart_policy: condition: on-failurevolumes: cluster1_logs: cluster2_logs: cluster3_logs: cluster4_logs:

3.启动

docker stack deploy -c docker-cluster.yml nacos_cluster

采用stack部署，会根据配置文件中部署条件，按照docker节点标签部署到不同的节点上，每个docker节点部署2个nacos节点
4.Nginx代理配置 nginx配置文件添加

upstream nacos { server 192.168.62.37:9848 weight=1 max_fails=2 fail_timeout=10s; server 192.168.62.37:9849 weight=1 max_fails=2 fail_timeout=10s; server 192.168.62.15:9850 weight=1 max_fails=2 fail_timeout=10s; server 192.168.62.15:9851 weight=1 max_fails=2 fail_timeout=10s; }

location /nacos/ { proxy_passhttp://nacos; 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 REMOTE-HOST $remote_addr; add_header X-Cache $upstream_cache_status; add_header Cache-Control no-cache; }

5.web访问是否成功在浏览器输入：http://nginxIP:端口/nacos/index.html访问，如下：表示部署成功