workflows: Enhance s390x mkosi workflow #2957

	# (C) Copyright Confidential Containers Contributors 2023.
	# SPDX-License-Identifier: Apache-2.0
	#
	# Run end-to-end (e2e) tests on pull request.
	---
	name: e2e tests

	on:
	# Note on repository checkout: pull_request_target sets `GITHUB_SHA` to the
	# "last commit on the PR base branch", meaning that by default `actions/checkout`
	# is going to checkout the repository main branch. In order to pick up the pull
	# request code, this workflow uses the `github.event.pull_request.head.sha`
	# property to get the last commit on the HEAD branch. One limitation of this approach
	# is that, unlike the `pull_request` event, the checked pull request isn't necessarily
	# rebased to main (so it is up to users ensure the pull request is rebased *before
	# triggering this workflow).
	pull_request_target:
	types:
	# This workflow will be run if the pull request is labeled test_e2e_libvirt, so
	# adding 'labeled' to the list of activity types.
	#
	- opened
	- synchronize
	- reopened
	- labeled
	branches:
	- 'main'

	concurrency:
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	authorize:
	runs-on: ubuntu-24.04
	if: contains(github.event.pull_request.labels.*.name, 'test_e2e_libvirt')
	steps:
	- run: "true"
	e2e:
	uses: ./.github/workflows/e2e_run_all.yaml
	needs: [authorize]
	with:
	caa_image_tag: ci-pr${{ github.event.number }}
	git_ref: ${{ github.event.pull_request.head.sha }}
	podvm_image_tag: ci-pr${{ github.event.number }}
	registry: ghcr.io/${{ github.repository_owner }}
	secrets: inherit

Provide feedback