Linux distributions base Docker images with just Python 3 installed:
| Distribution | Tag |
|---|---|
| Ubuntu 16.04 LTS | xenial |
| Ubuntu 18.04 LTS | bionic |
| Alpine Linux v3.8 | alpine |
Use the tag to pull the specific Docker image: docker pull codeyourinfra/python3:tag.
The default command tail -f /dev/null executed on container initialization keeps it up when in detached mode.
The bionic image, for example, can so be instantiated by simply executing: docker run --name bionic -d codeyourinfra/python3:bionic.
A good usage for the Python 3 custom Docker images is for testing Ansible roles. The build process of each Codeyourinfra's Ansible role, for example, uses the images for testing.