Test variables in Makefile #3

	name: Publish snapshot

	on: [push]
	# workflow_dispatch:
	# inputs:
	# branch:
	# description: 'For which branch build snapshot?'
	# required: true

	jobs:
	publish:

	runs-on: ubuntu-latest
	environment: ci

	steps:
	- name: Checkout
	uses: actions/checkout@v2
	with:
	fetch-depth: 0
	# ref: ${{ github.event.inputs.branch }}
	- name: Publish docker snapshot
	env:
	RETRY_COUNT: 3
	run: \|
	docker login --username ${{ secrets.DOCKER_HUB_USERNAME }} --password ${{ secrets.DOCKER_HUB_PASSWORD }}
	export RALPH_VERSION=$(shell ./get_version.sh show)
	until [ "$RETRY_COUNT" -le 0 ]
	do
	make publish-docker-snapshot-image && break
	RETRY_COUNT=$((RETRY_COUNT-1))
	echo "==== Publish docker failed. Remaining retries: $RETRY_COUNT ===="
	done
	docker logout

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