docker-python3

docker pull vevende/python3:latest

Create a Dockerfile

FROM vevende/python:latest
COPY requirements.txt /requirements.txt
RUN gosu app pip install --no-cache-dir -r /requirements.txt
COPY . /app
EXPOSE 8000
CMD ["python", "manage.py", "runserver", "0.0.0.0:8000"]

Extending

If you would like to do additional initialization in an image derived from this one, add one or more *.py or *.sh scripts under /docker-entrypoint.d/.

Just before the main entrypoint runs the CMD command, it will run any *.py files and source any *.sh scripts found in that directory.

For example if you have a Django project, you could run migrations and create a default superuser before the app is running.

Having /docker-entrypoint.d/00_init-django-project.sh:

#!/bin/bash
set -e

echo -n "Django check project ... "
python src/manage.py check
echo "Done"

echo "Running migrations"
python src/manage.py migrate --no-input

Having /docker-entrypoint.d/10_create_superuser.py:

import os
import django

os.environ.setdefault("DJANGO_SETTINGS_MODULE", "myproject.settings")
django.setup()

from django.contrib.auth import User

print("Creating superuser... ", end='')

superuser = User.objects.create_superuser(
    username='admin',
    email='admin@localhost',
    password='admin'
)

print("Done")

Notes:

• Library requirements for compiling uWSGI, Pillow and other common python modules are already installed
• The user app is meant to run all python applications
• The python environment is on /python. Useful if you want to mount it as a volume