add path to dockerfile github action #3

	name: Build and publish docker image

	on:
	push:
	tags:
	- 'l1-devnet-*'
	jobs:
	build:
	name: Clone, Build, Publish
	runs-on: ubuntu-latest
	steps:

	- name: Check out repository
	uses: actions/checkout@v2

	- name: Set up QEMU
	uses: docker/setup-qemu-action@v2

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v2

	- name: Login to Dockerhub
	uses: docker/login-action@v2
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}

	- name: Extract tag version
	id: extract_tag
	run: \|
	# Extract the tag version part from the ref name
	VERSION=$(echo "${GITHUB_REF##*/}" \| sed 's/^l1-devnet-//')
	echo "VERSION=${VERSION}" >> $GITHUB_ENV

	- name: Build image
	id: build
	env:
	REGISTRY: ${{ steps.login-ecr.outputs.registry }}
	REPOSITORY: l1-devnet
	uses: docker/build-push-action@v3
	with:
	platforms: linux/amd64,linux/arm64
	push: true
	context: .
	file: custom-images/l1-devnet/Dockerfile
	tags: \|
	${{ secrets.DOCKERHUB_USERNAME }}/${{ env.REPOSITORY }}:${{ env.VERSION }}
	${{ secrets.DOCKERHUB_USERNAME }}/${{ env.REPOSITORY }}:latest

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