反向代理负载均衡-Nginx

Nginx 虚拟主机

我们使用 Docker 来安装和运行 Nginx，nginx的80端口映射到服务器的80端口。可修改。docker-compose.yml 配置如下：

root@faramita:/usr/local/docker/nginx# cat docker-compose.yml 
version: '3.1'
services:
  nginx:
    restart: always
    image: nginx
    container_name: nginx
    ports:
      - 80:80
    volumes:
      - ./conf/nginx.conf:/etc/nginx/nginx.conf
      - ./wwwroot:/usr/share/nginx/wwwroot

启动 Tomcat 容器

version: '3'
services:
  tomcat1:
    image: tomcat
    container_name: tomcat1
    ports:
      - 8080:8080

  tomcat2:
    image: tomcat
    container_name: tomcat2
    ports:
      - 9090:8080

Nginx 反向代理与负载均衡

配置nginx.conf

这里是通过访问139.224.117.172Nginx的80端口，映射到服务器的80端口，监听80端口，访问到代理服务器myapp1，myapp1有两个tomcat（相当于两台服务器），139.224.117.172:80可随机访问这两个tomcat，实现负载均衡

root@faramita:/usr/local/docker/nginx/conf# cat nginx.conf 
user  nginx;
worker_processes  1;

events {
    worker_connections  1024;
}

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

    sendfile        on;

    keepalive_timeout  65;

    upstream myapp1 {
        server 139.224.117.172:8080 weight=10;
        server 139.224.117.172:9090 weight=10;
    }

    server {
        listen 80;
        server_name 139.224.117.172;
        location / {
            proxy_pass http://myapp1;
            index index.jsp index.html index.htm;
        }
    }
}

cdn服务器

docker-compose

root@faramita:/usr/local/docker/nginx# cat docker-compose.yml 
version: '3.1'
services:
  nginx:
    restart: always
    image: nginx
    container_name: nginx
    ports:
      - 80:80
    volumes:
      - ./conf/nginx.conf:/etc/nginx/nginx.conf
      - ./wwwroot:/usr/share/nginx/wwwroot

放置cdn中要存放的资源

/usr/local/docker/nginx/wwwroot/cdn/adminlte/v2.4.3

nginx.conf

root@faramita:/usr/local/docker/nginx/conf# cat nginx.conf 
user  nginx;
worker_processes  1;

events {
    worker_connections  1024;
}

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

    sendfile        on;

    keepalive_timeout  65;

       server {
        listen 80;
        server_name 139.224.117.172;
        location / {
            add_header Access-Control-Allow-Origin *;
            add_header Access-Control-Allow-Headers X-Requested-With;
            add_header Access-Control-Allow-Methods GET,POST,OPTIONS;
            root /usr/share/nginx/wwwroot/cdn;
            index index.jsp index.html index.htm;
        }
    }
}