Base Docker Image - Build and Push #4

	# This YAML file is used to build and push a base Docker image with the necessary tools and dependencies for an ML project
	# It contains a job that builds the Docker image and pushes it to GitHub Container Registry

	name: Base Docker Image - Build and Push

	on:
	# Trigger the workflow manually
	workflow_dispatch:

	jobs:
	build_and_push:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	# Check out the repository containing the Dockerfile and other necessary files
	uses: actions/checkout@v2

	- name: Log in to GitHub Container Registry
	# Log in to GitHub Container Registry using the actor and a GitHub token
	uses: docker/login-action@v1
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Set up Docker Buildx
	# Set up Docker Buildx for building multi-architecture images
	uses: docker/setup-buildx-action@v2

	- name: Format repo slug
	# Format the repository slug to lowercase for use in the Docker image tags
	id: repo_slug
	run: echo "REPO_SLUG=$(echo ${{ github.repository }} \| tr '[:upper:]' '[:lower:]')" >> $GITHUB_ENV

	- name: Build and push Docker image
	# Build the Docker image using the Dockerfile in the `docker_base` directory and push it to GitHub Container Registry
	uses: docker/build-push-action@v4
	with:
	context: ./docker_base
	push: true
	tags: ghcr.io/${{ env.REPO_SLUG }}/arm-mlops-docker-base:latest
	# Use GitHub Actions cache to speed up the build process
	cache-from: type=gha
	cache-to: type=gha,mode=max

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