compose: fix GOOSE_DOCKER_TAG var #60

	name: Push to GitHub registry

	on:
	push:
	branches:
	- main

	tags:
	- v*

	env:
	IMAGE_NAME: goose-docker

	jobs:
	push_ghcr:
	runs-on: ubuntu-latest
	permissions:
	packages: write
	contents: read

	steps:
	- uses: actions/checkout@v3

	- name: Build image
	run: docker build . --file Dockerfile --tag $IMAGE_NAME --label "runnumber=${GITHUB_RUN_ID}"

	- name: Log in to registry
	run: echo "${{ secrets.GITHUB_TOKEN }}" \| docker login ghcr.io -u $ --password-stdin

	- name: Generate names
	id: names
	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" == "main" ] && VERSION=latest

	echo IMAGE_ID=$IMAGE_ID
	echo VERSION=$VERSION

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

	- name: Push image
	run: \|
	IMAGE_ID=${{ steps.names.outputs.IMAGE_ID }}
	VERSION=${{ steps.names.outputs.VERSION }}

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

	- name: Test docker compose
	run: \|
	VERSION=${{ steps.names.outputs.VERSION }}
	sed -i "s/3.22.1/$VERSION/" .env
	cat .env

	docker compose up -d
	docker compose down

Provide feedback