Merge pull request #460 from dres-dev/dev #23

	name: Publish DRES Distribution and Docker Image

	on:
	push:
	tags:
	- 'v' # Push events to matching v, i.e. v1.0, v20.15.10

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	with:
	submodules: true
	- name: set up JDK 11
	uses: actions/setup-java@v1
	with:
	java-version: 11.0.6
	- name: Cache Gradle packages
	uses: actions/cache@v1
	with:
	path: ~/.gradle/caches
	key: ${{ runner.os }}-gradle-${{ hashFiles('*/.gradle') }}
	restore-keys: ${{ runner.os }}-gradle
	- name: Build distribution
	run: ./gradlew distTar
	- name: Get the version
	id: get_version
	run: echo "VERSION=${GITHUB_REF/refs\/tags\/v/}" >> $GITHUB_ENV
	- name: Create Release
	id: create_release
	uses: actions/create-release@v1
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	with:
	tag_name: ${{ env.VERSION }}
	release_name: Release ${{ env.VERSION }}
	draft: false
	prerelease: false
	- name: Upload Release Asset
	id: upload-release-asset
	uses: actions/upload-release-asset@v1
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	with:
	upload_url: ${{ steps.create_release.outputs.upload_url }} # This pulls from the CREATE RELEASE step above, referencing it's ID to get its outputs object, which include a `upload_url`. See this blog post for more info: https://jasonet.co/posts/new-features-of-github-actions/#passing-data-to-future-steps
	asset_path: ./backend/build/distributions/dres-dist.tar
	asset_name: dres-dist-${{ env.VERSION }}.tar
	asset_content_type: application/tar

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