Docker Nginx反向代理提供了"502 Bad Gateway" [英] Docker nginx reverse proxy gives "502 Bad Gateway"

问题描述

我正在尝试使具有nginx的docker容器作为其他docker容器的反向代理，并且我在除基本位置'/'之外的其他位置不断获取错误的网关".

I'm trying to have a docker container with nginx work as reverse proxy to other docker containers and I keep getting "Bad Gateway" on locations other other than the base location '/'.

我有以下服务器块:

server {

  listen 80;

  location / {
    proxy_pass "http://game2048:8080";
  }

  location /game {
    proxy_pass "http://game:9999";
  }

}

它适用于http://localhost，但不适用于http://localhost/game，它在浏览器中提供了错误的网关"，并在nginx容器上提供了该信息:

It works for http://localhost but not for http://localhost/game which gives "Bad Gateway" in the browser and this on the nginx container:

[error] 7#7: *6 connect() failed (111: Connection refused) 
while connecting to upstream, client: 172.17.0.1, server: , 
request: "GET /game HTTP/1.1", upstream: "http://172.17.0.4:9999/game", 
host: "localhost"

我使用官方的nginx docker映像并在上面放置自己的配置.您可以对其进行测试并在此处查看所有详细信息: https://github.com/jollege/ngprox1

I use the official nginx docker image and put my own configuration on it. You can test it and see all details here: https://github.com/jollege/ngprox1

任何想法出什么问题了吗?

Any ideas what goes wrong?

注意:我已经在docker主机上设置了本地主机名条目以匹配这些名称:

NB: I have set local hostname entries on docker host to match those names:

127.0.1.1       game2048
127.0.1.1       game

推荐答案

我已修复它！我在nginx config中的不同服务器块中设置了服务器名称.记住要使用docker端口，而不要使用主机端口.

I fixed it! I set the server name in different server blocks in nginx config. Remember to use docker port, not host port.

server {

  listen 80;
  server_name game2048;

  location / {
    proxy_pass "http://game2048:8080";
  }

}

server {

  listen 80;
  server_name game;

  location / {
    # Remember to refer to docker port, not host port
    # which is 9999 in this case:
    proxy_pass "http://game:8080";
  }

}

github存储库已更新，以反映此修复程序，./README.old01.md下有旧的自述文件.

The github repo has been updated to reflect the fix, the old readme file is there under ./README.old01.md.

典型地，当我认真地向他人表达问题时，我会找到答案.你知道那种感觉吗?

Typical that I find the answer when I carefully phrase the question to others. Do you know that feeling?

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