Create images #249

	# This workflow creates docker images that are used for building ROOT in a Jenkins pipeline
	#
	# All created images are uploaded to GitHub Container registry

	name: Create images v2

	on:
	workflow_dispatch:
	push:
	branches:
	- main
	schedule:
	# every day
	- cron: '0 2 * * *'

	jobs:
	build:
	strategy:
	matrix:
	image: ["debug", "debian10", "fedora37", "fedora37-test", "fedora38", "alma8", "alma9", "ubuntu2304", "ubuntu22", "ubuntu20", "ubuntu18"]
	fail-fast: false

	runs-on: ubuntu-latest

	steps:
	- name: Checkout
	uses: actions/checkout@v3

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v2

	- name: Login to Github Container Registry
	uses: docker/login-action@v2
	with:
	registry: registry.cern.ch
	username: robot-root-ci+github
	password: ${{ secrets.CR_PAT }}

	- name: Build and push
	uses: docker/build-push-action@v4
	with:
	context: ./${{ matrix.image }}/
	push: true
	tags: registry.cern.ch/root-ci/${{ matrix.image }}:buildready
	labels: org.opencontainers.image.source=https://github.com/${{ github.repository }}
	no-cache: ${{ github.event_name != 'push' }}
	cache-from: type=gha,scope=${{ matrix.image }}
	cache-to: type=gha,mode=max,scope=${{ matrix.image }}

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