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 / docker-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。
Nginx配置不正确,但你的docker-compose还需要一些修正:
Nginx website有一些有用的技巧,用于部署Docker,你应该阅读,包括一个示例,非常简单的Dockerfile:
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:
service.conf
- > service.template
listen ${NGINX_PORT};
server_name ${NGINX_HOST};
proxy_pass http://${DAPHNE_HOST}:${DAPHNE_PORT};
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 page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};
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。
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 / docker-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;
}
}
您的NGINX配置错误。试试proxy_pass http://127.0.0.1:8000;
对于静态文件,这是因为您没有将文件提供给容器。我建议进行以下修改:
MyProject的/ Dockerfile:
[...]
ADD . /opt/myproject
VOLUME ["/opt/myproject/collected_static"]
[..]
# may I also suggest automatic static file collection?
RUN python manage.py collectstatic --noinput
myproject / docker-compose.yml:
[...]
build: ./nginx
volumes_from:
- "worker" # or daphne
我还会考虑在daphne和工作服务中添加image
选项。这将标记图像并允许重复使用它,因此它只会构建一次(而不是两次)。
myproject:
build: .
image: "myproject:latest"
[..]
worker:
image: "myproject:latest"
[..]
daphne:
image: "myproject:latest"