Nginx docker 配置失败答案

【问题标题】：Nginx docker configuration is failingNginx docker 配置失败
【发布时间】：2022-01-03 17:41:57
【问题描述】：

我尝试构建一个 Django / Gunicorn / Nginx 配置以在 AWS 上运行。数据库容器单独运行。但是，在执行 docker-compose 构建步骤时，nginx 步骤失败了。文件如下所示：

dockerfile.prod：

version: '3'

services:
  web:
    build:
      context: .
      dockerfile: Dockerfile.prod
    container_name: app
    command: gunicorn The6ix.wsgi:application --bind 0.0.0.0:8000
    volumes:
      - static_volume:/home/app/web/staticfiles
    networks:
      - dbnet
    expose:
      - 8000
    environment:
      aws_access_key_id: ${aws_access_key_id}
      aws_secret_access_key: ${aws_secret_access_key}

  nginx:
    build: ./nginx
    ports:
      - 1337:80
    volumes:
      - static_volume:/home/app/web/staticfiles
      - media_volume:/home/app/web/mediafiles
    depends_on:
      - web

volumes:
  static_volume:
  media_volume:


networks:
  dbnet:
    external: true

我的 nginx Dockerfile（在 ./nginx 文件夹中）：

FROM nginx:1.21-alpine

RUN rm /etc/nginx/conf.d/default.conf
COPY nginx.conf /etc/nginx/conf.d

我的 nginx.conf 文件（在 ./nginx 文件夹中）：

upstream The6ix {
    server web:8000;
}

server {

    listen 80;

    location / {
        proxy_pass http://The6ix;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $host;
        proxy_redirect off;
    }

    location /static/ {
        alias /home/app/web/staticfiles/;
    }

    location /media/ {
        alias /home/app/web/mediafiles/;
    }

我的 nginx 容器的错误日志如下：

/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
10-listen-on-ipv6-by-default.sh: info: /etc/nginx/conf.d/default.conf is not a file or does not exist
/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh
/docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh
/docker-entrypoint.sh: Configuration complete; ready for start up
2022/01/03 17:33:59 [emerg] 1#1: host not found in upstream "web:8000" in /etc/nginx/conf.d/nginx.conf:2
nginx: [emerg] host not found in upstream "web:8000" in /etc/nginx/conf.d/nginx.conf:2

一些帖子提到使用 .yaml 文件中的卷创建步骤是罪魁祸首。但是有没有更好的方法来排序以启用 nginx 的正确运行？

【问题讨论】：

标签： docker nginx docker-compose

【解决方案1】：

我曾怀疑错误是我的配置副本造成的。最后，实际上是网络错误。以下修改更正了该问题：

在外壳中：

docker network create nginx_network

修改 docker-compose.yaml 文件：

version: '3'

services:
  web:
    build:
      context: .
      dockerfile: Dockerfile.prod
    command: gunicorn The6ix.wsgi:application --bind 0.0.0.0:8000
    volumes:
      - static_volume:/home/app/web/staticfiles
      - media_volume:/home/app/web/mediafiles
    networks:
      - dbnet
      - nginx_network
    ports:
      - "8000:8000"
    environment:
      aws_access_key_id: ${aws_access_key_id}
      aws_secret_access_key: ${aws_secret_access_key}

  nginx:
    build: ./nginx
    ports:
      - 80:80
    volumes:
      - static_volume:/home/app/web/staticfiles
      - media_volume:/home/app/web/mediafiles
    depends_on:
      - web
    networks:
      - nginx_network

volumes:
  static_volume:
  media_volume:


networks:
  dbnet:
    external: true
  nginx_network:
    external: true

【讨论】：