Re-add coffea casa centos 7 image #159

	name: Test docker images

	on:
	pull_request:
	paths:
	- docker/**
	branches:
	- master
	workflow_dispatch:

	env:
	PROJECT: 'coffea-casa'
	GITHUB_ACTIONS: 'true'
	REGISTRY: 'hub.opensciencegrid.org'

	jobs:
	matrix-build:
	strategy:
	fail-fast: false
	matrix:
	image: [cc-base-ubuntu, cc-analysis-ubuntu, cc-base-centos7, cc-analysis-centos7]
	# Keep this line in sync with gh actions @ coffea-dask repo
	# python: [3.8, 3.9, '3.10']
	#exclude:
	# - image: cc7
	# python: 3.8
	name: ${{ matrix.image }}
	runs-on: ubuntu-latest
	steps:
	- name: Fetch current date (with timestamp)
	id: date
	run: \|
	echo "::set-output name=date::$(date +"%Y-%m-%d_%H-%M-%S")"
	- name: Check out code
	uses: actions/checkout@v2
	- name: Set up QEMU
	uses: docker/setup-qemu-action@v2
	- name: Set up Docker Buildx
	id: buildx
	uses: docker/setup-buildx-action@v2
	with:
	version: latest
	driver-opts: network=host
	- name: Login to Harbor Hub
	if: success() && github.event_name != 'pull_request'
	uses: docker/login-action@v2
	with:
	registry: hub.opensciencegrid.org
	username: ${{ secrets.HARBOR_USER }}
	password: ${{ secrets.HARBOR_PASSWORD }}
	- name: Build and push
	uses: docker/[email protected]
	with:
	context: docker/
	file: docker/Dockerfile.${{ matrix.image }}
	push: ${{ github.event_name == 'push' }}
	platforms: linux/amd64
	tags: ${{ env.REGISTRY }}/coffea-casa/${{ matrix.image }}:${{ steps.date.outputs.date }}
	build-args: \|
	TAG=${{ steps.date.outputs.date }}
	PROJECT=${{ env.PROJECT }}
	GITHUB_ACTIONS=${{ env.GITHUB_ACTIONS }}
	REGISTRY=${{ env.REGISTRY }}

Provide feedback