Feature/automated docker release (#42)

* Changes

-> Created a separate yaml file only for releases (develop -> main)
-> Renamed yaml files

* correct tag

Correct test tag, instead of tag test

* Combining to a single workflow

* Testing Docker Image Push

* fixed the condition back

.github/workflows/migration-workflow.yml → .github/workflows/tests.yml

@@ -1,4 +1,4 @@
-name: GitHub Actions Migration
+name: Standard Tests Workflow
 on: [push, pull_request, workflow_dispatch] #workflow_dispatch works only if its active in the main branch
 jobs:
   Unit-Test:
@@ -65,10 +65,10 @@ jobs:
       uses: docker/build-push-action@v2
       with:
         context: .
-        builder: ${{ steps.buildx.outputs.name }} #didn't fix
+        builder: ${{ steps.buildx.outputs.name }}
         file: ./Dockerfile
-        push: true #not pushing the docker image yet
-        tags: ga4gh/ga4gh-starter-kit-common:test
+        push: true
+        tags: ga4gh/ga4gh-starter-kit-common:test #labelled test because it is only needed for the Gradle Integ. Tests
         build-args: VERSION=${{ env.version }}
         cache-from: type=gha #GitHub Actions Cache Exporter
         cache-to: type=gha,mode=max
@@ -80,3 +80,37 @@ jobs:
     
     - name: Gradle Integration Test
       run: ./gradlew test --tests=integration.*
+
+  Docker-Release:
+    needs: Docker-Integration-Test
+    runs-on: ubuntu-latest
+    if: github.ref == 'refs/heads/main' && github.event_name == 'push' #Only runs if pushing to main
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Setting Up Docker Buildx #used for caching image layers, improves performance
+      id: buildx
+      uses: docker/setup-buildx-action@v1
+
+    - name: Login to Docker Hub
+      uses: docker/login-action@v1
+      with: 
+        username: ${{ secrets.DOCKER_HUB_USERNAME }}
+        password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
+
+    - name: Get and Set Version
+      run: |
+        source ci/set-docker-image-version.sh
+        echo "version=${DOCKER_IMG_VER}" >> $GITHUB_ENV
+
+    - name: Build and push
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        builder: ${{ steps.buildx.outputs.name }}
+        file: ./Dockerfile
+        push: true
+        tags: ga4gh/ga4gh-starter-kit-common:${{ env.version }} #Using the correct version as the tag
+        build-args: VERSION=${{ env.version }}
+        cache-from: type=gha #GitHub Actions Cache Exporter
+        cache-to: type=gha,mode=max