Docker-compose部署NGINX/TOMCAT负载均衡

为什么80%的码农都做不了架构师？>>>   

1. 准备需要的镜像
   1. NGINX
   2. tomcat:8.5.0(使用最新版的看不到Tomcat主页，所以就用这个版本了)
2. 准备nginx.conf配置文件，下一步需要挂载到nginx容器中(t01和t02待会创建Tomcat容器时挂载使用该别名，也可以更改)

   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;
       #tcp_nopush     on;
   
       keepalive_timeout  65;
   
       #gzip  on;
   
       #include /etc/nginx/conf.d/*.conf;
   
       upstream tomcat_client {
            server t01:8080 weight=1;
            server t02:8080 weight=1;
       } 
   
       server {
           server_name "";
           listen 80 default_server;
           listen [::]:80 default_server ipv6only=on;
   
           location / {
               proxy_pass http://tomcat_client;
               proxy_redirect default;
               proxy_set_header Host $host;
               proxy_set_header X-Real-IP $remote_addr;
           }
       }
   }

3. 编写docker-compose.yml文件

   version: "3"
   services:
     tomcat001:
       image: tomcat:8.5.0
       ports:
         - "8083:8080"
       restart: "always"
       container_name: tomcat001
     tomcat002:
       image: tomcat:8.5.0
       ports:
         - "8082:8080"
       container_name: tomcat002
       restart: "always"
     nginx:
       image: nginx
       volumes:
         - /root/componse_test/tomcat/nginx/nginx.conf:/etc/nginx/nginx.conf
       ports:
         - "81:80"
         - "443:443"
       links:
         - tomcat001:t01
         - tomcat002:t02

4. 如果要区分的话可以挂载自定义index.jsp到Tomcat容器中的/usr/local/tomcat/webapps/ROOT/ 该目录下

5. 然后使用docker-compose up -d 启动即可

6. 

转载于:https://my.oschina.net/xpx/blog/1845532