ci: trigger workflow on changes to its own definition #5

	name: Build and Push Docker Image

	on:
	push:
	branches: [ main ]
	paths:
	- 'caddy/Dockerfile'
	- '.github/workflows/caddy-build-push.yml'
	pull_request:
	branches: [ main ]
	paths:
	- 'caddy/Dockerfile'
	- '.github/workflows/caddy-build-push.yml'
	workflow_dispatch: # Allow manual triggering

	jobs:
	build-and-push:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write
	steps:
	- uses: actions/checkout@v2

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v1

	- name: Login to GitHub Container Registry
	uses: docker/login-action@v1
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Get Caddy version
	id: caddy_version
	run: \|
	CADDY_VERSION=$(docker run --rm caddy:2-alpine caddy version \| cut -d ' ' -f 1)
	echo "version=${CADDY_VERSION}" >> $GITHUB_OUTPUT
	echo "CADDY_VERSION=${CADDY_VERSION}" >> $GITHUB_ENV


	- name: Build and push
	uses: docker/build-push-action@v2
	with:
	context: ./caddy
	file: ./caddy/Dockerfile
	push: true
	tags: \|
	ghcr.io/${{ github.repository_owner }}/caddy:latest
	ghcr.io/${{ github.repository_owner }}/caddy:2
	ghcr.io/${{ github.repository_owner }}/caddy:2.${{ env.CADDY_VERSION }}

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