Fix for image signing #4

	name: Agent Docker Image CI - PR

	on:
	pull_request:
	branches:
	- 'main'

	env:
	# Use docker.io for Docker Hub if empty
	REGISTRY: ghcr.io
	# github.repository as <account>/<repo>
	IMAGE: ${{ github.repository }}/agent

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	-
	name: Checkout
	uses: actions/checkout@v3
	with:
	fetch-depth: 0

	-
	name: Set up QEMU
	uses: docker/setup-qemu-action@v2

	- uses: docker/setup-buildx-action@v1
	name: Set up Docker Buildx

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

	-
	name: Build and push on PR
	uses: docker/build-push-action@v4
	if: github.event_name == 'pull_request'
	with:
	context: .
	file: ./dockerfiles/agent/Dockerfile
	push: true
	tags: ${{ env.REGISTRY }}/${{ env.IMAGE }}:pr-${{ github.event.pull_request.number }}
	labels: ${{ steps.meta.outputs.labels }}
	build-args: \|
	"GITHUB_TOKEN=${{ secrets.GITHUB_TOKEN }}"

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