Jwilder/nginx-Proxy 503服务暂时不可用

Question

我正在尝试使用docker-compose和jwilder/nginx-proxy以及letsencrypt companion构建一个web应用程序，但是当我尝试时，nginx向我抛出一个503错误。

version: '2'

services:
  nginx-proxy:
    image: jwilder/nginx-proxy:alpine
    restart: always
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - /etc/nginx/certs
      - /etc/nginx/vhost.d
      - /usr/share/nginx/html
      - /var/run/docker.sock:/tmp/docker.sock:ro
    labels:
      - com.github.jrcs.letsencrypt_nginx_proxy_companion.nginx_proxy

  letsencrypt:
    image: jrcs/letsencrypt-nginx-proxy-companion
    restart: always
    environment:
      - NGINX_PROXY_CONTAINER=nginx-proxy
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
    volumes_from:
      - nginx-proxy:rw

  www:
    build:
      context: .
      dockerfile: Dockerfile
    restart: always
    expose:
      - "80"
    environment:
      - VIRTUAL_HOST=example.com, www.example.com
      - LETSENCRYPT_HOST=example.com, www.example.com
      - LETSENCRYPT_EMAIL=[e-mail]

我的web应用程序是用react构建的，我制作了这个Dockerfile来构建容器映像：

FROM node:10-alpine as build

WORKDIR /usr/src/app

COPY package.json .

RUN npm install

COPY . .

RUN npm run build

FROM nginx:1.14-alpine

COPY --from=build /usr/src/app/build/ /usr/share/nginx/html

COPY www/nginx.config /etc/nginx/conf.d/default.conf

这是此映像使用的nginx.config：

server {
  server_name example.com www.example.com;
  listen 80 reuseport default;
  sendfile on;
  default_type application/octet-stream;
  gzip on;
  gzip_http_version 1.1;
  gzip_disable      "MSIE [1-6].";
  gzip_min_length   1100;
  gzip_vary         on;
  gzip_proxied      expired no-cache no-store private auth;
  gzip_types        text/plain text/css application/json application/javascript application/x-javascript text/xml application/xml application/xml+rss text/javascript;
  gzip_comp_level   9;
  root /usr/share/nginx/html;
  location / {
    try_files $uri $uri/ /index.html =404;
  }
}

web应用程序映像工作良好，我可以打开它，如果我只运行这个。问题是nginx-proxy和同伴容器，可能nginx-proxy无法找到www容器？

Answer 1

您需要在backends环境变量中指定正确的virtual_host，并确保它们位于同一网络（或docker桥接器网络）上

然后它应该自动链接到彼此，并能够通过您提供的域访问。