使用nginx,django,daphne部署到docker

Question

我想将我的服务部署到docker.

我的服务是使用python + django和django-channels开发的

?? myproject ??? myproject ? ??? settings.py ? ??? urls.py ? ??? asgi.py ? ??? ... ??? collected_static ? ??? js ? ??? css ? ??? ... ??? nginx ? ??? Dockerfile ? ??? service.conf ??? requirements.txt ??? manage.py ??? Dockerfile ??? docker-compose.yml

myproject/Dockerfile:

FROM python
ENV PYTHONUNBURRERED 1

RUN mkdir -p /opt/myproject
WORKDIR /opt/myproject
ADD . /opt/myproject

RUN pip install -r requirements.txt
RUN python manage.py migrate

MyProject的/泊坞窗,compose.yml:

version: '2'
services:
  nginx:
    build: ./nginx
    networks:
      - front
      - back
    ports:
      - "80:80"
    depends_on:
      - daphne
  redis:
    image: redis
    networks:
      - "back"
    ports:
      - "6379:6379"
  worker:
    build: .
    working_dir: /opt/myproject
    command: bash -c "python manage.py runworker"
    environment:
      - REDIS_HOST=redis
    networks:
      - front
      - back
    depends_on:
      - redis
    links:
      - redis
  daphne:
    build: .
    working_dir: /opt/myproject
    command: bash -c "daphne -b 0.0.0.0 -p 8000 myproject.asgi:channel_layer"
    ports:
      - "8000:8000"
    environment:
      - REDIS_HOST=redis
    networks:
      - front
      - back
     depends_on:
      - redis
     links:
      - redis
  networks:
    front:
    back:

的myproject/nginx的/ Dockerfile

FROM nginx
COPY service.conf /etc/nginx/sites-enabled/

的myproject/nginx的/ service.conf

server {
  listen 80;
  server_name example.com #i just want to hide domain name..
  charset utf-8;
  client_max_body_size 20M;

  location /static/ {
    alias /opt/myproject/collected_static/;
  }

  location / {
    proxy_pass http://0.0.0.0:8000;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";

    proxy_redirect off;
    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-Host $server_name;
  }
}

我写了一个命令docker-compose up -d,nginx和daphne工作得很好.

但当我连接到example.com:80时,我只能看到nginx默认页面.

当我连接到example.com:8000时,我只能看到myproject的服务页面.(但看不到静态文件)

我想链接nginx和daphne服务!我该怎么办？请帮我.

• 当我只使用没有docker的nginx + daphne + django进行部署时,我的服务运行良好.

Answer 1

TLDR;

Nginx配置不正确,但你的docker-compose还需要一些修正:

Nginx的

该Nginx的网站具有与泊坞部署,你应该阅读,包括样品,非常简单Dockerfile一些有用的技巧:

FROM nginx
RUN rm /etc/nginx/conf.d/default.conf
RUN rm /etc/nginx/conf.d/example_ssl.conf
COPY content /usr/share/nginx/html
COPY conf /etc/nginx

这表明您需要进行一些改进(有关Docker的更多帮助,请参阅Docker Compose部分).

考虑到我们将在下面进行的部署更新,您还需要更改Nginx配置:

• 重命名service.conf- >service.template
• 更改 listen ${NGINX_PORT};
• 更改 server_name ${NGINX_HOST};
• 更改 proxy_pass http://${DAPHNE_HOST}:${DAPHNE_PORT};

Docker撰写

现在你的Nginx配置是正确的,你需要正确设置docker compose指令,谢天谢地,Docker Hub Nginx页面有一个docker compose的例子:

以下是使用docker-compose.yml的示例:

web:
  image: nginx
  volumes:
   - ./mysite.template:/etc/nginx/conf.d/mysite.template
  ports:
   - "8080:80"
  environment:
   - NGINX_HOST=foobar.com
   - NGINX_PORT=80
  command: /bin/bash -c "envsubst < /etc/nginx/conf.d/mysite.template > /etc/nginx/conf.d/default.conf && nginx -g 'daemon off;'"

然后mysite.template文件可能包含这样的变量引用:

listen ${NGINX_PORT};

从r00m的答案

您可以进行所有这些改进,事实上,在不共享卷的情况下,您的静态文件将无法正确提供.

• 为项目创建一个图像并重新使用它
• 添加Volume引用以允许共享静态文件
• 可选:您还应该遵循有关收集静态文件的建议,但您的项目结构类型表明您已经完成了.

将它们整合在一起

最后,我们可以合并这三个改进,为我们提供以下设置:

MyProject的/ Dockerfile:

FROM python
ENV PYTHONUNBUFFERED 1

RUN mkdir -p /opt/myproject
WORKDIR /opt/myproject
ADD . /opt/myproject

RUN pip install -r requirements.txt
RUN python manage.py migrate # Can this be done during build? i.e. no link to the DB?

VOLUME ["/opt/myproject/collected_static"]

MyProject的/泊坞窗,compose.yml:

version: '2'
services:
  nginx:
    build: ./nginx
    networks:
      - front
      - back
    ports:
      - "80:80"
    volumes_from:
      - "daphne"
    environment:
      - NGINX_HOST=example.com
      - NGINX_PORT=80
      - DAPHNE_HOST=daphne
      - DAPHEN_PORT=8000
    depends_on:
      - daphne
    links:
      - daphne
    command: /bin/bash -c "envsubst < /etc/nginx/conf.d/service.template > /etc/nginx/conf.d/default.conf && nginx -g 'daemon off;'"
  redis:
    image: redis
    networks:
      - "back"
    ports:
      - "6379:6379"
  daphne:
    build: .
    image: "myproject:latest"
    working_dir: /opt/myproject
    command: bash -c "daphne -b 0.0.0.0 -p 8000 myproject.asgi:channel_layer"
    ports:
      - "8000:8000"
    environment:
      - REDIS_HOST=redis
    networks:
      - front
      - back
     depends_on:
      - redis
     links:
      - redis
  worker:
    image: "myproject:latest"
    working_dir: /opt/myproject
    command: bash -c "python manage.py runworker"
    environment:
      - REDIS_HOST=redis
    networks:
      - front
      - back
    depends_on:
      - redis
    links:
      - redis
  networks:
    front:
    back:

的myproject/nginx的/ Dockerfile

FROM nginx
RUN rm /etc/nginx/conf.d/default.conf
RUN rm /etc/nginx/conf.d/example_ssl.conf
COPY service.template /etc/nginx/conf.d

的myproject/nginx的/ service.template

server {
  listen ${NGINX_PORT};
  server_name ${NGINX_HOST}
  charset utf-8;
  client_max_body_size 20M;

  location /static/ {
    alias /opt/myproject/collected_static/;
  }

  location / {
    proxy_pass http://${DAPHNE_HOST}:${DAPHNE_PORT};
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";

    proxy_redirect off;
    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-Host $server_name;
  }
}

最后的想法

• 我不确定你要用你的网络指令实现什么,但它几乎肯定无法实现它,例如nginx不应该连接到你的后端网络(我想......).
• 您需要考虑是否应在构建时或运行时完成"迁移".
• 您是否需要能够轻松更改nginx配置？如果是这样,您应该从nginx构建中删除COPY并从Docker Compose部分添加volumes指令.