Update cl.yml - images base #539

	name: Purl GitHub Actions

	on:
	push:
	branches:
	- master
	pull_request:
	branches:
	- master
	workflow_dispatch:

	jobs:
	DockertTest:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: List files in the repository
	run: \|
	ls ${{ github.workspace }}

	- name: Prepare
	id: prep
	run: \|
	TAG=latest
	IMAGE="purl"
	echo ::set-output name=tagged_image::${IMAGE}:${TAG}
	echo ::set-output name=tag::${TAG}
	- name: Set up Docker Buildx
	id: buildx
	uses: docker/setup-buildx-action@master

	# Registry login step intentionally missing
	- name: Cache Docker layers
	uses: actions/cache@v2
	with:
	path: /tmp/.buildx-cache
	key: ${{ runner.os }}-single-buildx-${{ github.sha }}
	restore-keys: \|
	${{ runner.os }}-single-buildx

	- name: Build image
	uses: docker/build-push-action@v2
	with:
	context: .
	builder: ${{ steps.buildx.outputs.name }}
	file: docker/Dockerfile
	push: false
	load: true
	tags: ${{ steps.prep.outputs.tagged_image }}
	cache-from: type=local,src=/tmp/.buildx-cache
	cache-to: type=local,dest=/tmp/.buildx-cache-new

	- name: Move cache
	run: \|
	rm -rf /tmp/.buildx-cache
	mv /tmp/.buildx-cache-new /tmp/.buildx-cache

	- name: Run Tests
	run: \|
	docker run -w /var/www/purl.obolibrary.org -v ${{ github.workspace }}:/var/www/purl.obolibrary.org -t purl:latest sudo make all test

Provide feedback