Reworked structure & added test build to PRs #464

	name: Build and push image

	on:
	pull_request:
	branches:
	- "main"
	push:
	branches:
	- main

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: ${{ github.repository }}

	jobs:
	build-and-push-image:
	name: Build and push image
	runs-on: self-hosted
	outputs:
	version: ${{ steps.build.version.outputs.version }}
	permissions:
	contents: write
	packages: write

	steps:
	# - name: Clear up some disk space
	#run: \|
	# sudo rm -rf /usr/share/dotnet
	#sudo rm -rf "$AGENT_TOOLSDIRECTORY"
	#df -h

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

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

	- name: Log in to the Container registry
	uses: docker/login-action@v2
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Test build
	if: github.event_name == 'pull_request'
	uses: docker/build-push-action@v3
	with:
	context: .
	file: ./build/docker/agent/Dockerfile
	load: true
	tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}:test
	cache-from: type=gha
	cache-to: type=gha,mode=max
	build-args: \|
	USERNAME=paf
	USER_UID=1000
	USER_GID=1000

	- name: Build and push Docker image
	id: build
	if: github.event_name != 'pull_request'
	uses: docker/build-push-action@v3
	with:
	context: .
	file: ./build/docker/agent/Dockerfile
	push: true
	# tag 'latest' and version on push to main, otherwise use the commit hash
	tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
	cache-from: type=gha
	cache-to: type=gha,mode=max
	build-args: \|
	USERNAME=paf
	USER_UID=1000
	USER_GID=1000

Provide feedback