如何使用nginx docker容器访问localhost上的服务器？ [英] How do I access a server on localhost with nginx docker container?

问题描述

我试图使用一个dockerized版本的nginx作为我的节点（ExpressJS）应用程序的代理服务器。没有配置nginx和发布端口80的容器，我可以看到默认的nginx着陆页。所以我知道这很多工作。

I'm trying to use a dockerized version of nginx as a proxy server for my node (ExpressJS) application. Without any configuration to nginx and publishing port 80 for the container, I am able to see the default nginx landing page. So I know that much is working.

现在我可以挂载包含 proxy_pass localhost：3000 。我的节点应用程序在本地运行（不在任何Docker容器中），我可以通过端口3000访问（即 localhost：3000 ）。但是，我认为，使用nginx容器运行，映射到端口80，并代理我的localhost：3000，我可以看到我的 简单（hello world）应用程序。相反，我会收到一个502.

Now I can mount my sites-enabled directory that contains the configuration for proxy_pass localhost:3000. I have my node application running locally (not in any Docker container) and I can access it via port 3000 (i.e. localhost:3000). However, I would assume that with nginx container running, mapped to port 80, and proxying my localhost:3000, that I would be able to see my very simple (hello world) application. Instead I receive a 502.

我需要将一些东西传送到码头服务器吗？这可能是一个nginx配置错误吗？这是我的nginx配置：

Do I need to pass something into docker? Is this likely a nginx configuration error? Here is my nginx configuration:

server {
  listen 0.0.0.0:80;
  server_name localhost;

  location / {
    proxy_pass http://localhost:3000;
  }
}

我尝试使用这个问题但似乎没有帮助。

I have tried using this question but it did not seem to help. That is unless I'm doing something completely wrong.

推荐答案

您可以按照此处：

ifconfig en0 | grep inet | grep -v inet6 | awk '{print $2}'

然后你可以使用添加-host 标志与 docker运行：

Then you can use the --add-host flag with docker run:

docker run --add-host localnode:$(ifconfig en0 | grep inet | grep -v inet6 | awk '{print \$2}') ...

在您的 proxypass 中使用 localnode 而不是 localhost 。

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