Add tag version based on dockerfile #19

	name: Build and Push PHP+Composer Images

	on:
	push:
	branches:
	- main

	jobs:
	build:
	runs-on: ubuntu-latest

	permissions:
	contents: read
	packages: write

	steps:
	- name: Checkout code
	uses: actions/checkout@v4

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

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

	- name: Extract versions
	id: vars
	run: \|
	php=$(grep 'ARG PHP_VERSION' Dockerfile \| cut -d= -f2)
	composer=$(grep 'ARG COMPOSER_VERSION' Dockerfile \| cut -d= -f2)
	echo "tag=$php-$composer" >> $GITHUB_OUTPUT

	- name: Build and push multi-arch image
	uses: docker/build-push-action@v6
	with:
	context: .
	push: true
	platforms: linux/amd64,linux/arm64
	tags: ghcr.io/${{ github.repository }}:${{ steps.vars.outputs.tag }}

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