Multi coupon support #57

	name: Publish Docker Image

	on:
	push:
	branches: ["main"]
	paths:
	- self-registration/**
	pull_request:
	paths:
	- self-registration/**

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

	jobs:
	push:
	runs-on: ubuntu-latest
	permissions:
	packages: write
	contents: read
	steps:
	- uses: actions/checkout@v3
	- name: Set lower case image name
	run: echo "IMAGE_LC=${IMAGE_NAME,,}" >>${GITHUB_ENV}
	- name: Set the timestamp for version
	run: echo "VERSION=$(date +'%Y%m%d-%H%M')" >> ${GITHUB_ENV}
	- name: Build image
	run: docker build self-registration --file self-registration/Dockerfile --tag $IMAGE_LC --label "runnumber=${GITHUB_RUN_ID}"
	- name: Log in to registry
	run: echo "${{ secrets.GITHUB_TOKEN }}" \| docker login $REGISTRY -u $ --password-stdin
	- name: Push image
	run: \|
	IMAGE_ID=ghcr.io/$IMAGE_LC
	IMAGE_ID=$(echo $IMAGE_ID \| tr '[A-Z]' '[a-z]')

	[[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION \| sed -e 's/^v//')

	[ "$VERSION" == "main" ] && VERSION=latest
	echo IMAGE_ID=$IMAGE_ID
	echo VERSION=$VERSION
	docker tag $IMAGE_LC $IMAGE_ID:$VERSION
	docker push $IMAGE_ID:$VERSION

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