在Docker中用Angular 4，Django和postgresql部署项目
我想部署在Heroku我的项目在Docker Angular 4前端与Django后端和postgresql数据库。 在这个时候我的文件看起来如下所示。 我记得确定这是否正确完成？ 我使用heroku container:push web --app myproject推送它heroku container:push web --app myproject但它不起作用（日志）。 我假设如果我使用Docker，我不必创buildProcfile等？ 可能错误是由于数据库迁移不足造成的？
我不知道我正在走向正确的方向，但我正在尝试迁移我的数据库。 也许我的错误是由缺乏数据库引起的？
当我运行heroku run python manage.py migrate ，我得到：
django.db.utils.OperationalError：无法将主机名“db”翻译为地址：名称或服务未知
日志：
2017-07-07T10:27:30.448951+00:00 heroku[web.1]: State changed from crashed to starting 2017-07-07T10:27:30.436282+00:00 heroku[web.1]: Process exited with status 0 2017-07-07T10:27:50.846928+00:00 heroku[web.1]: Starting process with command `python3` 2017-07-07T10:27:53.350381+00:00 heroku[web.1]: Process exited with status 0 2017-07-07T10:27:53.365013+00:00 heroku[web.1]: State changed from starting to crashed 2017-07-07T10:27:53.876208+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host= myproject.herokuapp.com request_id=e1f8edfc-7dc4-4bd3-91be-0a853e948452 fwd="109.173.154.199" dyno= connect= service= status=503 bytes= protocol=https 2017-07-07T10:28:43.444860+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host= myproject.herokuapp.com request_id=361846d1-41cd-403a-989f-4c29a0d1179e fwd="109.173.154.199" dyno= connect= service= status=503 bytes= protocol=https 2017-07-07T10:28:43.984059+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host= myproject.herokuapp.com request_id=658795c8-0ba7-4988-9d39-34601b1334c7 fwd="109.173.154.199" dyno= connect= service= status=503 bytes= protocol=https 2017-07-07T10:28:44.673789+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host= myproject.herokuapp.com request_id=63fbabdc-7ba7-4997-81be-c601a0d83368 fwd="109.173.154.199" dyno= connect= service= status=503 bytes= protocol=https 2017-07-07T10:29:53.091547+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host= myproject.herokuapp.com request_id=a3943544-9dc4-44f0-b788-a462cdfba7d0 fwd="109.173.154.199" dyno= connect= service= status=503 bytes= protocol=https 2017-07-07T10:29:54.419623+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host= myproject.herokuapp.com request_id=eb5191e2-21d9-410c-823e-c57bb0fb7fa4 fwd="109.173.154.199" dyno= connect= service= status=503 bytes= protocol=https
项目树：
├── Backend │ ├── AI │ │ ├── __init__.py │ │ ├── __pycache__ │ │ │ ├── __init__.cpython-36.pyc │ │ │ ├── settings.cpython-36.pyc │ │ │ ├── urls.cpython-36.pyc │ │ │ └── wsgi.cpython-36.pyc │ │ ├── settings.py │ │ ├── urls.py │ │ └── wsgi.py │ └── manage.py ├── Dockerfile ├── init.sql ├── Frontend │ └── angularProject ├── Dockerfile │ └── all files in my angular project ├── docker-compose.yml └── requirements.txt
前端的Dockerfile：
# Create image based on the official Node 6 image from dockerhub FROM node:6 # Create a directory where our app will be placed RUN mkdir -p /usr/src/app # Change directory so that our commands run inside this new directory WORKDIR /usr/src/app # Copy dependency definitions COPY package.json /usr/src/app # Install dependecies RUN npm install # Get all the code needed to run the app COPY . /usr/src/app # Expose the port the app runs in EXPOSE 4200 # Serve the app CMD ["npm", "start"]
主目录的Dockerfile：
FROM python:3.6.1 ENV PYTHONUNBUFFERED 1 RUN mkdir /code WORKDIR /code ADD requirements.txt /code/ RUN pip3 install -r requirements.txt ADD . /code/
泊坞窗，compose.yml：
version: '3' services: db: image: postgres environment: POSTGRES_USER: aso POSTGRES_PASSWORD: somepass django: build: . command: python3 MainDirectory/backend/myProject/manage.py runserver 0.0.0.0:8001 volumes: - .:/code ports: - "8001:8001" depends_on: - db angular: build: MainDirectory/frontend ports: - "4200:4200" depends_on: - django
init.sql：
CREATE USER myUser; CREATE DATABASE myProject; GRANT ALL PRIVILEGES ON DATABASE myProject TO myUser;
在我看来，你没有在需要的地方连接容器。 如果你希望db可以通过django添加links指令到你的docker-compose.yml中 ：
... django: build: . command: python3 MainDirectory/backend/myProject/manage.py runserver 0.0.0.0:8001 volumes: - .:/code ports: - "8001:8001" depends_on: - db links: - db
这样db主机名将被正确parsing。 希望。
希望这可以帮助。 …
您应该使用dockernetworking将容器链接在一起。
像这样的东西：
version: '3' services: db: image: postgres environment: POSTGRES_USER: aso POSTGRES_PASSWORD: somepass networks: - app django: build: . command: python3 MainDirectory/backend/myProject/manage.py runserver 0.0.0.0:8001 volumes: - .:/code ports: - "8001:8001" networks: - app depends_on: - db angular: build: MainDirectory/frontend ports: - "4200:4200" networks: - app depends_on: - django networks: app:
这使您可以更轻松地添加和删除需要与链接进行通信的容器和服务。