Docker + Nginx:让 proxy_pass 开始工作

Docker + Nginx: Getting proxy_pass to work

我在尝试让 Nginx 代理到另一个服务器的路径时遇到问题,该服务器也是 Docker 中的 运行。

为了说明,我以 Nexus 服务器为例。

这是我的第一次尝试...

docker-compose.yml:-

version: '2'
services:
  nexus:
    image: "sonatype/nexus3"
    ports:
     - "8081:8081"
    volumes:
     - ./nexus:/nexus-data

  nginx:
    image: "nginx"
    ports:
    - "80:80"
    volumes:
    - ./nginx/nginx.conf:/etc/nginx/nginx.conf:ro

nginx.conf:-

worker_processes 4;
events { worker_connections 1024; }
http {
        server {
              listen 80;

              location /nexus/ {
                proxy_pass http://localhost:8081/;
              }
        }
}

当我点击 http://localhost/nexus/ 时,我得到 502 Bad Gateway 和以下日志:-

nginx_1  | 2017/05/29 02:20:50 [error] 7#7: *4 connect() failed (111: Connection refused) while connecting to upstream, client: 172.18.0.1, server: , request: "GET /nexus/ HTTP/1.1", upstream: "http://[::1]:8081/", host: "localhost"
nginx_1  | 2017/05/29 02:20:50 [error] 7#7: *4 connect() failed (111: Connection refused) while connecting to upstream, client: 172.18.0.1, server: , request: "GET /nexus/ HTTP/1.1", upstream: "http://127.0.0.1:8081/", host: "localhost"
nginx_1  | 172.18.0.1 - - [29/May/2017:02:20:50 +0000] "GET /nexus/ HTTP/1.1" 502 575 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36"

第二次尝试...,

docker-compose.yml - 我在 Nginx 配置中添加了 links:-

version: '2'
services:
  nexus:
    image: "sonatype/nexus3"
    ports:
     - "8081:8081"
    volumes:
     - ./nexus:/nexus-data

  nginx:
    image: "nginx"
    ports:
    - "80:80"
    volumes:
    - ./nginx/nginx.conf:/etc/nginx/nginx.conf:ro
    links:
    - nexus:nexus

nginx.conf... 而不是使用 http://localhost:8081/,我使用 http://nexus:8081/:-

worker_processes 4;
events { worker_connections 1024; }
http {
        server {
              listen 80;

              location /nexus/ {
                proxy_pass http://nexus:8081/;
              }
        }
}   

现在,当我点击 http://localhost/nexus/ 时,它得到了正确的代理,但 Web 内容被部分呈现。检查该页面的 HTML 源代码时,javascript、样式表和图像链接指向 http://nexus:8081/[path]... 因此,404.

我应该更改什么才能使其正常工作?

非常感谢。

以下附加选项是我用过的

http {
    server {
          listen 80;

          location /{
            proxy_set_header    X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header    Host $http_host;
            server_name_in_redirect on;
            proxy_pass      http://nexus:8081;

          }

          location /nexus/ {
            proxy_pass          http://nexus:8081/;
            proxy_set_header    X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header    X-Real-IP $remote_addr;
            proxy_set_header    Host $http_host;
            server_name_in_redirect on;
          }
    }

}

我的解决方案是在 nginx 配置中包含“/”路径的重定向。 Nexus 应用程序将向“/”请求它无法工作的资源。

但是,这并不理想,不适用于为多个应用程序提供服务的 Nginx 配置。

docs 覆盖此配置并指示您需要配置 Nexus 以在 /nexus 上提供服务。这将使您能够按以下方式配置 Nginx(来自文档)减去上面的 hack。

location /nexus {
  proxy_pass http://localhost:8081/nexus;
  proxy_set_header Host $host;
  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}

我建议使用该配置。