Merge branch 'dev' of https://github.com/uwcirg/isacc-messaging-clien… #478

	# docker continuous delivery
	# deliver docker images to configured repo with tags to match branches and git tags
	---
	name: Build & Deliver
	on: [push]
	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout git commit
	uses: actions/checkout@master
	with:
	fetch-depth: 0

	- name: Set environment variable for version from git output
	run: echo "REACT_APP_VERSION_STRING=$(git describe --always --tags)" >> $GITHUB_ENV

	- name: Publish to GitHub Container Registry
	# TODO: pin to hash
	uses: elgohr/Publish-Docker-Github-Action@master
	with:
	name: ${{ github.repository }}
	registry: ghcr.io

	# GitHub actor
	username: ${{ github.actor }}

	# GitHub access token
	password: ${{ secrets.GITHUB_TOKEN }}

	# create docker image tags to match git tags
	tag_names: true
	buildargs: REACT_APP_VERSION_STRING

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