docker-compose 用於 nginx 和 nodejs 伺服器

我有以下docker-compose.yml文件：

version: '3'
services:
   server:
       build:
           context: ../../
           dockerfile: ./packages/website/Dockerfile
       command: node /cutting/index.js
       environment:
           PORT: 8000
           NODE_ENV: production
       restart: always
   nginx:
       build:
           context: ./
           dockerfile: ./nginx/Dockerfile
       command: tail -f /dev/null
       depends_on:
           - server
       ports:
           - "8000:8000"
       restart: always

以及以下內容nginx.conf：

worker_processes 1;

user nobody nogroup;
pid /tmp/nginx.pid;
error_log /tmp/logs/nginx.error.log;

events {
   worker_connections 1024;
   accept_mutex off;
}

http {
   include mime.types;
   default_type application/octet-stream;
   access_log /tmp/logs/nginx.access.log combined;
   sendfile on;

   server {
       proxy_http_version 1.1; # this is essential for chunked responses to work

       listen   80; ## listen for ipv4; this line is default and implied
       listen   [::]:80 default ipv6only=on; ## listen for ipv6
       client_max_body_size 4G;
       server_name frontend;

       gzip on;
       gzip_disable "msie6";
       gzip_vary on;
       gzip_proxied any;
       gzip_comp_level 6;
       gzip_buffers 16 8k;
       gzip_http_version 1.1;
       gzip_types application/javascript text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;

       keepalive_timeout 5;

       location /static/  {
           alias /static/;
       }

       location  / {
           proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
           proxy_set_header Host $http_host;

           # UNCOMMENT LINE BELOW IF THIS IS BEHIND A SSL PROXY
           #proxy_set_header X-Forwarded-Proto https;

           proxy_redirect off;
           proxy_pass   http://localhost:8000;
       }
   }
}

如果這創建了 2 個容器，我怎樣才能讓 nginx 在另一個容器上看到 localhost:8000？

您可以使用在 中name定義的容器docker-compose.yml。Docker 通過每個容器內的 DNS 為命名容器提供 IP 地址，並在容器更新時更新它們。

在這種情況下，您呼叫了它server，因此您將使用它。

   proxy_pass http://server:8000;

文件：Compose 中的網路

在這種情況下，您需要使用上游，例如：

upstream backend {
   server express-server:81; #you container/service name
}

然後使用：

proxy_pass http://backend

引用自：https://serverfault.com/questions/904131