set -a fix #189

	name: Docker

	# This workflow uses actions that are not certified by GitHub.
	# They are provided by a third-party and are governed by
	# separate terms of service, privacy policy, and support
	# documentation.

	on:
	push:
	# branches: [ "master", "*" ]
	# # Publish semver tags as releases.
	# tags: [ 'v..*' ]
	# paths-ignore:
	# - 'README.md'
	# - '*.yaml'
	pull_request:
	# branches: [ "master" ]

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: ${{ github.repository }}

	jobs:
	build-and-push-image:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	include:
	- dockerfile: ./Dockerfile
	image: ghcr.io/ucsd-ets/spark-notebook
	- dockerfile: ./spark-image/Dockerfile
	image: ghcr.io/ucsd-ets/spark-node
	permissions:
	contents: read
	packages: write

	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Log in to the Container registry
	uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
	with:
	images: ${{ matrix.image }}

	- name: prune
	run: docker system prune -af

	- name: Build and push Docker image
	uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
	with:
	context: .
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}

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