Modernize swarm parameters. #7

	name: Build Jenkins swarm client container
	on:
	push:
	branches:
	- master
	pull_request:

	env:
	CONTAINER_NAME: jenkins-swarm-client

	jobs:
	push:
	runs-on: ubuntu-latest
	permissions:
	packages: write
	contents: read
	steps:
	- name: Checkout
	uses: actions/checkout@v3

	- name: Build swarm image
	run: \|
	docker build . \
	--build-arg JSWARM_UID=48435 \
	--build-arg JSWARM_GID=202 \
	--tag $CONTAINER_NAME \
	--label "runnumber=${GITHUB_RUN_ID}"
	- name: Log in to GitHub Container Registry
	run: echo "${{ secrets.GITHUB_TOKEN }}" \| docker login ghcr.io -u $ --password-stdin

	- name: Push images
	run: \|
	CONTAINER_ID=ghcr.io/${{ github.repository_owner }}/$CONTAINER_NAME
	VERSION=$(echo "${{ github.ref }}" \| sed -e 's,./$.$,\1,')
	[[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION \| sed -e 's/^v//')
	[ "$VERSION" == "master" ] && VERSION=latest
	echo CONTAINER_ID=$CONTAINER_ID
	echo VERSION=$VERSION
	docker tag $CONTAINER_NAME $CONTAINER_ID:$VERSION
	docker push $CONTAINER_ID:$VERSION

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