Update node.js.yml #992

	# This workflow will do a clean installation of node dependencies, cache/restore them, build the source code and run tests across different versions of node
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions

	name: Node.js CI

	on:
	push:
	branches: [main]
	pull_request:
	types: [opened, synchronize, reopened]

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2
	- name: Setup node.js
	uses: actions/setup-node@v2
	with:
	node-version: 16.x
	cache: "npm"
	- run: npm ci
	- run: npm run build --if-present

	build-docker:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2
	- name: Build Docker Image
	run: \|
	docker build -t ghcr.io/clouditor/medina-ui .
	- name: Login Docker Registry
	run: \|
	echo ${{ secrets.GITHUB_TOKEN }} \| docker login ghcr.io -u $GITHUB_ACTOR --password-stdin
	if: github.ref == 'refs/heads/main'
	- name: Push Docker Image
	run: \|
	docker push ghcr.io/clouditor/medina-ui
	if: github.ref == 'refs/heads/main'
	- name: Push Docker Image (as Version)
	run: \|
	export VERSION=`expr substr $GITHUB_REF 12 5`
	docker tag ghcr.io/clouditor/medina-ui ghcr.io/clouditor/medina-ui:$VERSION
	docker push ghcr.io/clouditor/medina-ui:$VERSION
	if: startsWith(github.ref, 'refs/tags')

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