add maintenance mode #88

	on:
	push:
	pull_request:

	name: CI build
	jobs:
	build:
	name: CI build
	runs-on: ubuntu-latest
	env:
	# Use docker.io for Docker Hub if empty
	REGISTRY: ghcr.io
	# github.repository as <account>/<repo>
	IMAGE_NAME: ${{ github.repository }}
	permissions:
	contents: read
	packages: write
	steps:

	- name: Checkout repo
	uses: actions/checkout@v4
	with:
	fetch-depth: 0



	- name: Set up Docker Buildx
	id: buildx
	uses: docker/setup-buildx-action@v3
	- name: Log into registry ${{ env.REGISTRY }}
	if: github.event_name != 'pull_request'
	uses: docker/login-action@v3
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}
	- name: Extract Docker metadata
	id: meta-php
	uses: docker/metadata-action@v5
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}-php
	tags: \|
	type=schedule
	type=ref,event=branch
	type=ref,event=tag
	type=ref,event=pr
	type=semver,pattern={{version}}
	type=semver,pattern={{major}}.{{minor}}
	type=semver,pattern={{major}},enable=${{ !startsWith(github.ref, 'refs/tags/v0.') }}
	type=raw,value=latest,enable={{is_default_branch}}
	type=raw,value={{branch}}-{{sha}}-{{date 'X'}},enable=${{ github.event_name != 'pull_request' && !contains(github.ref, 'refs/tags/') }}
	- name: Build and push
	uses: docker/build-push-action@v5
	with:
	context: .
	file: ./Dockerfile.php
	push: ${{ github.event_name != 'pull_request' && github.actor != 'dependabot[bot]'}}
	tags: ${{ steps.meta-php.outputs.tags }}
	labels: ${{ steps.meta-php.outputs.labels }}

Provide feedback