Nginx worker connections number

• You can now use NGINX_WORKER_CONNECTIONS to set the maximum number of Nginx worker connections and NGINX_WORKER_OPEN_FILES to set the maximum number of open files. Thanks to ronlut in this PR.

Graceful shutdown handling

2018-06-22:

Improvements from parent image:

• Make uWSGI require an app to run, instead of going in "full dynamic mode" while there was an error. Supervisord doesn't terminate itself but tries to restart uWSGI and shows the errors. Uses need-app as suggested by luckydonald in this comment.

• Correctly handled graceful shutdown of uWSGI and Nginx. Thanks to desaintmartin in this PR.

Alpine, USE_NGINX_WORKER_PROCESSES, and bug fixes

There are now Alpine flavors for Python3.6 and Python2.7. They have been there for some time, but I hadn't created a release including them.

There's now a USE_NGINX_WORKER_PROCESSES to control how many Nginx processes to run.

And several bug fixes in this image and the parent image.

Use explicit uwsgi.ini file in example projects

Note: The purpose of this release is mainly to upload the updated example zip projects.

Added support for prestart.sh script, e.g. for migrations

2017-12-10: Added support for /app/prestart.sh script to run arbitrary code before starting the app (for example, Alembic - SQLAlchemy migrations). The documentation for the /app/prestart.sh is in the main README.

Configure which port the container should listen on with LISTEN_PORT

2017-12-08: Now you can configure which port the container should listen on, using the environment variable LISTEN_PORT.

Thanks to @tmshn in #27

Examples for Single-Page Apps (front end) updated to work even with pacakges

Examples for Single-Page Apps (front end) updated to work even with packages, using app.static_folder instead of hardcoding the path.

Python package example project and instructions

2017-09-02:

• Example project with a Python package structure and a section explaining how to use it and structure a Flask project like that.
• Also, the examples and documentation now use the flask run commands, that allows running a package application while developing more easily.

New architecture, env vars for configs, Python 3.6

Many changes:

• New official image tags: python3.6, python3.6-index, python.3.5, python3.5-index, python2.7 and python2.7-index. All the other images are deprecated in favor is this ones.
• Python 3.6 is now the recommended default. Even the example projects for other versions were removed to discourage using older Python versions for new projects.
• Any of the older images that didn't have a Python version will show a deprecation warning and take some time to start. As soon the tag latest will point to Python 3.6 and the other tags will be removed.
• There were several improvements in the bas image tiangolo/uwsgi-nginx that improved this image too.
• By default, now there is no limit in the upload file size in Nginx. It can be configured in an environment variable.
• It's now possible to configure several things with environment variables:
  • Serve index.html directly: STATIC_INDEX
  • Set the max upload file size: NGINX_MAX_UPLOAD
  • Set a custom uwsgi.ini file (that allows using a custom directory different than /app): UWSGI_INI (using the ideas by @bercikr in #5 ).
  • Set a custom ./static/ path: STATIC_PATH
  • Set a custom /static/ URL: STATIC_URL
• As all this configurations are available as environment variables, the choices are a lot more simple. Actually, any new project would just need to use a Dockerfile with:

FROM tiangolo/uwsgi-nginx-flask:python3.6

COPY ./app /app

and then customize with environment variables.

v0.2.0

Update examples, with new base uwsgi-nginx image that starts a dynamic number of processes from 2 to 16 to handle uWSGI responses.

That's specially useful in cases where there are some slow requests that take time to respond, allowing all the other fast requests to be answered quickly (in a different process) without having to wait for the first slow request to finish.

Also, there's now support for Python 3.5. With an equivalent image tag in Python 3.5 for each standard image tag and an equivalent example project template for each image tag. Nevertheless, Python 2.7 is still the default, as is for the Flask developers.