docker环境下前后端分离项目部署（四）

打包部署后端项目

1. 进入人人开源后端项目，执行打包（修改配置文件，更改端口，打包三次生成三个JAR文件）

   mvn clean install -Dmaven.test.skip=true
   

2. 安装Java镜像

   docker pull java
   

3. 创建3节点Java容器

   #创建数据卷，上传JAR文件
   docker volume create j1
   #启动容器
   docker run -it -d --name j1 -v j1:/home/soft --net=host java
   #进入j1容器
   docker exec -it j1 bash
   #启动Java项目
   nohup java -jar /home/soft/renren-fast.jar
   
   #创建数据卷，上传JAR文件
   docker volume create j2
   #启动容器
   docker run -it -d --name j2 -v j2:/home/soft --net=host java
   #进入j1容器
   docker exec -it j2 bash
   #启动Java项目
   nohup java -jar /home/soft/renren-fast.jar
   
   #创建数据卷，上传JAR文件
   docker volume create j3
   #启动容器
   docker run -it -d --name j3 -v j3:/home/soft --net=host java
   #进入j1容器
   docker exec -it j3 bash
   #启动Java项目
   nohup java -jar /home/soft/renren-fast.jar
   

4. 安装Nginx镜像

   docker pull nginx
   

5. 创建Nginx容器，配置负载均衡

   宿主机上/home/n1/nginx.conf配置文件内容如下：

   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;
   
   	proxy_redirect          off;
   	proxy_set_header        Host $host;
   	proxy_set_header        X-Real-IP $remote_addr;
   	proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
   	client_max_body_size    10m;
   	client_body_buffer_size   128k;
   	proxy_connect_timeout   5s;
   	proxy_send_timeout      5s;
   	proxy_read_timeout      5s;
   	proxy_buffer_size        4k;
   	proxy_buffers           4 32k;
   	proxy_busy_buffers_size  64k;
   	proxy_temp_file_write_size 64k;
   
   	upstream tomcat {
   		server 192.168.99.104:6001;
   		server 192.168.99.104:6002;
   		server 192.168.99.104:6003;
   	}
   	server {
           listen       6101;
           server_name  192.168.99.104;
           location / {
               proxy_pass   http://tomcat;
               index  index.html index.htm;
           }
       }
   }
   

   创建第1个Nginx节点

   docker run -it -d --name n1 -v /home/n1/nginx.conf:/etc/nginx/nginx.conf --net=host --privileged nginx
   
   

   宿主机上/home/n2/nginx.conf配置文件内容如下：

   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;
   
   	proxy_redirect          off;
   	proxy_set_header        Host $host;
   	proxy_set_header        X-Real-IP $remote_addr;
   	proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
   	client_max_body_size    10m;
   	client_body_buffer_size   128k;
   	proxy_connect_timeout   5s;
   	proxy_send_timeout      5s;
   	proxy_read_timeout      5s;
   	proxy_buffer_size        4k;
   	proxy_buffers           4 32k;
   	proxy_busy_buffers_size  64k;
   	proxy_temp_file_write_size 64k;
   
   	upstream tomcat {
   		server 192.168.99.104:6001;
   		server 192.168.99.104:6002;
   		server 192.168.99.104:6003;
   	}
   	server {
           listen       6102;
           server_name  192.168.99.104;
           location / {
               proxy_pass   http://tomcat;
               index  index.html index.htm;
           }
       }
   }
   

   创建第2个Nginx节点

   docker run -it -d --name n2 -v /home/n2/nginx.conf:/etc/nginx/nginx.conf --net=host --privileged nginx
   

6. 在Nginx容器安装Keepalived

   #进入n1节点
   docker exec -it n1 bash
   #更新软件包
   apt-get update
   #安装VIM
   apt-get install vim
   #安装Keepalived
   apt-get install keepalived
   #编辑Keepalived配置文件(如下)
   vim /etc/keepalived/keepalived.conf
   #启动Keepalived
   service keepalived start
   

   vrrp_instance VI_1 {
       state MASTER
       interface ens33
       virtual_router_id 51
       priority 100
       advert_int 1
       authentication {
           auth_type PASS
           auth_pass 123456
       }
       virtual_ipaddress {
           192.168.99.151
       }
   }
   virtual_server 192.168.99.151 6201 {
       delay_loop 3
       lb_algo rr
       lb_kind NAT
       persistence_timeout 50
       protocol TCP
       real_server 192.168.99.104 6101 {
           weight 1
       }
   }
   

   #进入n1节点
   docker exec -it n2 bash
   #更新软件包
   apt-get update
   #安装VIM
   apt-get install vim
   #安装Keepalived
   apt-get install keepalived
   #编辑Keepalived配置文件(如下)
   vim /etc/keepalived/keepalived.conf
   #启动Keepalived
   service keepalived start
   

   vrrp_instance VI_1 {
       state MASTER
       interface ens33
       virtual_router_id 51
       priority 100
       advert_int 1
       authentication {
           auth_type PASS
           auth_pass 123456
       }
       virtual_ipaddress {
           192.168.99.151
       }
   }
   virtual_server 192.168.99.151 6201 {
       delay_loop 3
       lb_algo rr
       lb_kind NAT
       persistence_timeout 50
       protocol TCP
       real_server 192.168.99.104 6102 {
           weight 1
       }
   }