Merge pull request #415 from afuetterer/gitignore #192

	name: Publish Docker image

	on:
	workflow_dispatch:
	push:
	# Publish `master` as Docker `latest` image.
	branches:
	- master
	# Publish `v1.2.3` tags as releases?
	# tags:
	# - v*
	release:
	types:
	- created

	env:
	DOCKER_BUILDKIT: 1
	IMAGE_NAME: fuji

	jobs:

	build-and-publish:
	# Build and push image to GitHub Container Registry https://docs.docker.com/docker-hub/builds/
	runs-on: ubuntu-22.04

	steps:

	- run: docker --version
	- run: docker buildx version

	- uses: actions/checkout@v3

	- name: Build image
	run: docker build . --file Dockerfile --tag $IMAGE_NAME

	- name: Log into GitHub Container Registry
	run: echo "${{ secrets.GITHUB_TOKEN }}" \| docker login https://ghcr.io -u ${{ github.actor }} --password-stdin

	- name: Push image to GitHub Container Registry
	run: \|
	IMAGE_ID=ghcr.io/${{ github.repository_owner }}/$IMAGE_NAME

	# Change all uppercase to lowercase
	IMAGE_ID=$(echo $IMAGE_ID \| tr '[A-Z]' '[a-z]')

	# Strip git ref prefix from version
	VERSION=$(echo "${{ github.ref }}" \| sed -e 's,./$.$,\1,')

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

	# Use Docker `latest` tag convention
	[ "$VERSION" == "master" ] && VERSION=latest

	echo IMAGE_ID=$IMAGE_ID
	echo VERSION=$VERSION

	docker tag $IMAGE_NAME $IMAGE_ID:$VERSION
	docker push $IMAGE_ID:$VERSION

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