Question

尝试通过docker compose运行nginx和Web应用程序

dockerfile

FROM node:12.16.2 as build

RUN mkdir /app

COPY package*.json ./
RUN npm install

COPY . /app
RUN npm run-script build

COPY --from=build /app/build /var/www/roundmap.app

EXPOSE 3000

nginx配置defauls.conf

server {
  listen 80;
  listen 443 ssl;
  listen 3000;
  server_name *.roundmap.app 185.146.157.206;

  root /var/www/roundmap.app;
  index index.html;

  ssl_certificate /etc/ssl/roundmap/roundmap.crt;
  ssl_certificate_key /etc/ssl/roundmap/roundmap.key;
  ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
  ssl_ciphers HIGH:!aNULL:!MD5;

  if ($scheme = http) {
    return 301 https://$server_name$request_uri;
  }

  location / {
    proxy_pass https://app:3000;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
  }
}

docker-compose.yml

version: "4"
services:
    app:
        build: roundmap/
        container_name: app
        ports:
            - 3000:3000
    nginx:
        image: nginx:1.17.2-alpine
        container_name: nginx
        ports:
            - 80:80
            - 443:443
        links:
            - app
        volumes:
            - ./default.conf:/etc/nginx/conf.d/default.conf
            - /etc/ssl/roundmap/roundmap.crt:/etc/ssl/roundmap/roundmap.crt
            - /etc/ssl/roundmap/roundmap.key:/etc/ssl/roundmap/roundmap.key

通过docker-compose up运行并得到错误

nginx | 2020/07/20 16:39:19 [emerg] 1＃1：在/etc/nginx/conf.d/default.conf:22的上游“应用”中找不到主机 nginx | nginx：在/etc/nginx/conf.d/default.conf:22的上游“应用”中找不到[emerg]主机 nginx以代码1退出

Сan，请帮助我在哪里弄错了？

Answer 1

在您的default.conf中，将https://app:3000替换为http://app:3000，因为Nginx本身正在进行SSL终止，而应用仍在使用http。

更新您的docker-compose.yaml

不推荐使用depends_on而不是links。

version: "3.8"
services:
    app:
        build: roundmap/
        container_name: app
        command: [ "node", "app.js"]
        ports:
            - 3000:3000
    nginx:
        image: nginx:1.17.2-alpine
        container_name: nginx
        ports:
            - 80:80
            - 443:443
        depends_on:
            - app
        volumes:
            - ./default.conf:/etc/nginx/conf.d/default.conf
            - /etc/ssl/roundmap/roundmap.crt:/etc/ssl/roundmap/roundmap.crt
            - /etc/ssl/roundmap/roundmap.key:/etc/ssl/roundmap/roundmap.key

Docker撰写错误：nginx：在/etc/nginx/conf.d/default.conf:21的上游“应用”中找不到[emerg]主机

1 个答案: