init #2

	name: build docker & deploy

	on:
	push:
	branches:
	- main
	pull_request:
	workflow_dispatch:

	jobs:
	build:
	runs-on: ubuntu-latest
	permissions:
	packages: write
	contents: read
	outputs:
	IMAGE_ID: ${{ steps.prepare.outputs.IMAGE_ID }}
	steps:
	- uses: actions/checkout@v4

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3

	- name: Log in to registry
	uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Prepare
	id: prepare
	run: \|
	IMAGE_ID=ghcr.io/${{ github.repository }}

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

	VERSION="${{ github.ref_name }}"
	# Strip slash from tag name
	[[ "${{ github.ref_type }}" == "branch" ]] && VERSION=$(echo $VERSION \| sed 's/\//_/')
	# Strip "v" prefix from tag name
	[[ "${{ github.ref_type }}" == "tag" ]] && VERSION=$(echo $VERSION \| sed -e 's/^v//')
	# Use Docker `latest` tag convention
	[ "$VERSION" == "main" ] && VERSION=latest

	echo "VERSION=$VERSION" >> $GITHUB_OUTPUT
	echo "IMAGE_ID=$IMAGE_ID" >> $GITHUB_OUTPUT

	- name: Build and push
	uses: docker/build-push-action@v6
	with:
	context: .
	push: true
	tags: \|
	${{ steps.prepare.outputs.IMAGE_ID }}:${{ steps.prepare.outputs.VERSION }}
	${{ steps.prepare.outputs.IMAGE_ID }}:${{ github.run_id }}
	cache-from: type=gha
	cache-to: type=gha,mode=max

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