chore(build): restore use of 'file' instead of context #25

	name: Docker Image CI

	on:
	push:
	branches: [ orange-master ]
	tags:
	- "v?[0-9]+.[0-9]+.[0-9]+*"
	pull_request:
	branches: [ orange-master ]
	workflow_dispatch:

	env:
	DOCKER_FILE_PATH: ./dockerfiles/alpine/Dockerfile
	IMAGE: "ghcr.io/${{ github.repository }}"
	DOCKERHUB_ORG: elpaasoci

	jobs:
	build_and_publish:
	name: build and publish
	runs-on: ubuntu-latest
	permissions:
	packages: write

	steps:
	- uses: actions/checkout@v4
	-
	name: Login to DockerHub
	uses: docker/login-action@v3
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_PASSWORD }}
	-
	name: Login to GitHub Container Registry
	uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{ github.repository_owner }}
	password: ${{ secrets.GITHUB_TOKEN }}
	-
	name: extract github repo name
	id: gh-repo-name
	run: \|
	echo "OCI_IMAGE=$(basename ${{ github.repository }})" >> $GITHUB_ENV
	shell: bash
	-
	name: publish concourse-pipeline-resource standard image
	uses: docker/build-push-action@v5.1.0
	with:
	file: ${{env.DOCKER_FILE_PATH}}
	push: true
	tags: \|
	${{env.DOCKERHUB_ORG}}/${{env.OCI_IMAGE}}:latest
	${{env.DOCKERHUB_ORG}}/${{env.OCI_IMAGE}}:${{github.sha}}
	${{ env.IMAGE}}:latest
	${{ env.IMAGE}}:${{github.sha}}
	-
	name: publish concourse-pipeline-resource tagged image
	if: github.ref_type == 'tag'
	uses: docker/build-push-action@v5.1.0
	with:
	push: true
	file: ${{ env.DOCKER_FILE_PATH }}
	tags: \|
	${{env.DOCKERHUB_ORG}}/${{env.OCI_IMAGE}}:${{github.ref_name}}
	${{env.IMAGE}}:${{github.ref_name}}

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