fix? #20

	name: Create and publish a Docker image
	on:
	push:
	tags:
	- 'v[0-9]+.[0-9]+.[0-9]+'

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

	jobs:
	build-and-push-image:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write

	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Get current branch and exit if not main
	run: \|
	raw=$(git branch -r --contains ${{ github.ref }})
	branch=${raw##*/}
	echo "{name}=branch" >> $GITHUB_OUTPUT
	echo "Branch is $branch."
	if [ "$branch" != "main" ]; then
	echo "Not on main branch, exiting."
	exit 0
	fi

	- name: Log in to the Container registry
	uses: docker/login-action@v2
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@v4
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

	- name: Build and push Docker image
	uses: docker/build-push-action@v4
	with:
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}
	file: docker/Dockerfile.prod
	secrets: \| # pass insensitive buildtime variables to docker
	"NEXT_PUBLIC_TG_BOT_NAME=${{ vars.NEXT_PUBLIC_TG_BOT_NAME }}"

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