github-esp-dockerfiles

This is the project for the standard Docker files. The images can be reused in GH events mainly on self-hosted runners.

Building a Docker image

• create a directory in the root of this project with the same name as the future Docker image.
• prepare a Dockerfile and place it in this new directory
• create a GH workflow (GH action) in .github/workflows/build_image_<name_of_your_image>.yml

RECOMMENDATION: The existing .yml workflow file can be copied and edited.

• Edit paths in the workflow file
• Set the following env variables in the workflow file:

env	value	example
IMAGE_DIR	Dockefile directory (context)	./pyenv_python
IMAGE_NAME	full image name	ghcr.io/${{ github.repository }}/pyenv_python
IMAGE_TAG	image version tag	v1
IMAGE_ARCHS	build for architectures	linux/amd64,linux/arm,linux/arm64

• the image is pushed to the GH packages of this repository only when merged into the master branch
• from there it can be used in any other project (images are public)