daveshow/python3-boto3 repository overview

⁠boto3 image auto-builder (Alpine base)

This repository builds and pushes a Docker image that:

• Uses the plain Alpine base image
• Installs Python 3 and pip from Alpine packages
• Installs the exact latest boto3 release
• Pushes to your container registry
• Rebuilds automatically when a new boto3 version is detected (polled every 6 hours)

⁠Configure

1. Create a new GitHub repository and add these files.

2. Set repository variables (Settings → Secrets and variables → Variables):

• REGISTRY: ghcr.io (recommended) or docker.io
• IMAGE_NAME: e.g. daveshow/boto3-alpine
• ALPINE_TAG:
  • latest to always track the newest Alpine release (and its Python)
  • 3.20 to pin to Alpine 3.20 which includes Python 3.12

1. Authentication:

• If using GHCR (ghcr.io), the workflow uses ${{ secrets.GITHUB_TOKEN }}.
• If using Docker Hub or another registry, set repository secrets:
  • DOCKER_USERNAME
  • DOCKER_TOKEN (a Personal Access Token or password)

⁠Tags

• latest: updated whenever a new boto3 release is built
• boto3-<version>: e.g. boto3-1.35.69

⁠Triggers

• Scheduled every 6 hours
• Manual via "Run workflow"
• On push to main

The workflow checks if boto3-<version> already exists in the registry and skips rebuilding that tag if so.

⁠Python version notes

• With ALPINE_TAG=latest, Python tracks whatever version ships with the latest Alpine release.
• If you need Python 3.12 specifically, set ALPINE_TAG=3.20 (or another Alpine version that ships Python 3.12).

⁠Local build

docker build --build-arg ALPINE_TAG=latest --build-arg BOTO3_VERSION=LATEST -t local/boto3:latest .

⁠Optional weekly refresh

If you want to refresh the base even when boto3 hasn't changed, add a separate weekly job that rebuilds and pushes regardless of existing tags.