docker nginx reverse proxy

gistfile1.txt

# Dockerfile

version: '3.6'

services:
  foo:
    image: foo
    restart: unless-stopped
    ports:
      - 9030:8080

  nginx:
    image: nginx:latest
    restart: unless-stopped
    ports:
      - 9090:80
    volumes:
      - "./nginx:/etc/nginx/conf.d"
    depends_on:
      - foo

# nginx configuration

server {
    listen       80;
    server_name  localhost;

    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_buffering off;
    proxy_request_buffering off;
    proxy_http_version 1.1;
    proxy_intercept_errors on;

    location /foo {
        rewrite /foo/(.*) /$1  break;
        proxy_pass   http://foo:8080;  # must match port in the Dockerfile!
    }

    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }
}