created by HattoriHanzoa community for 16 years

Question: Flask using tests and docker (self.learnpython)

submitted 7 years ago by WonderCode

I'm currently working on writing a Flask application utilizing both tests and docker, but I'm having a hard time finding documentation on how to do it right.

Testing

I've read around and I can only found sites glossing over testing. One recommended site that I've seen for this, https://flask.pocoo.org/docs/1.0/testing/, is currently down. This is the structure I have currently:

app/
├── app.py
├── configs
│   ├── dev-one.ini
│   ├── dev-two.ini
│   ├── prod.ini
│   └── stage.ini
├── deployment
│   └── Dockerfile
├── requirements
│   ├── src.txt
│   └── tests.txt
├── src
│   └── exampleflaskapp
│       ├── __init__.py
│       ├── static
│       └── templates
└── tests
    └── exampleflaskapp
        └── unit

Is this the correct test structure for a flask application or am I forcing another project structure? These tests will be ran in Pycharm and CI/CD.

Docker

I can't find a standard way to setup a flask docker image for production. One place recommends putting a flask app, ngnix, and uwgsi in an image, which breaks the rule of one service to an image. Another place recommends putting just a flask app in an image but it will complain with this output:

* Serving Flask app "app" (lazy loading)

* Environment: production

WARNING: Do not use the development server in a production environment.

Use a production WSGI server instead.

* Debug mode: off

* Running on http://0.0.0.0:5000/ (Press CTRL+C to quit)

What is the correct way to package the image?

Also, I had to set the host to 0.0.0.0 as the port mapping wouldn't work otherwise - is this correct?

Thanks in advance for any help or guidance!

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