Deployment automation for branches (#837)

On every push on PR the application is deployed. When the PR is closed the app is undeployed.

.github/workflows/deploy-branch.yml

@@ -0,0 +1,70 @@
+name: Deploy Branch
+
+on:
+  pull_request:
+    types: [ opened, synchronize, reopened ]
+
+jobs:
+  deploy:
+
+    runs-on: ubuntu-latest
+
+    env:
+      IMAGE_NAME: eu.gcr.io/${{ secrets.GCP_PROJECT_ID }}/turnilo
+      REF_NAME: ${{ github.head_ref }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Authenticate on GCP
+        uses: google-github-actions/setup-gcloud@master
+        with:
+          project_id: ${{ secrets.GCP_PROJECT_ID }}
+          service_account_key: ${{ secrets.GCP_SA_KEY }}
+          export_default_credentials: true
+
+      - name: Configure Docker
+        run: gcloud auth configure-docker --quiet
+
+      - name: Build Docker image
+        run: docker build . -t $IMAGE_NAME:$REF_NAME
+
+      - name: Push Docker image
+        run: docker push $IMAGE_NAME:$REF_NAME
+
+      - name: Deploy app
+        run: |
+          gcloud run deploy turnilo-${REF_NAME//[^a-z0-9]/-} \
+            --image $IMAGE_NAME:$REF_NAME \
+            --region europe-west1 \
+            --platform managed \
+            --allow-unauthenticated \
+            --quiet \
+            --port 9090 \
+            --cpu 1 --memory 1G --max-instances 1 --concurrency 80 \
+            --args="--examples"
+
+
+      - name: Get app URL
+        id: app-url
+        run: |
+          echo ::set-output name=app_url::$(gcloud run services describe turnilo-${REF_NAME//[^a-z0-9]/-} --region europe-west1 --format 'value(status.url)')
+
+      - name: Print app URL
+        uses: actions/github-script@v6
+        env:
+          APP_URL: ${{ steps.app-url.outputs.app_url }}
+        with:
+          script: |
+            github.rest.issues.createComment({
+              issue_number: context.issue.number,
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              body: ':white_check_mark: Deployed successfully to: ' + process.env.APP_URL
+            })
+
+      - name: Delete previous Docker image(s)
+        run: |
+          gcloud container images list-tags $IMAGE_NAME:$REF_NAME --filter='-tags:*' --format='get(digest)' --limit=unlimited | \
+          xargs -I {digest} gcloud container images delete "$IMAGE_NAME@{digest}" --quiet

.github/workflows/deploy.yml → .github/workflows/deploy-master.yml

@@ -1,4 +1,4 @@
-name: Deploy
+name: Deploy Master
 
 on:
   push:
@@ -33,7 +33,7 @@ jobs:
       - name: Push Docker image
         run: docker push $IMAGE_NAME:latest
 
-      - name: Deploy on GCP
+      - name: Deploy app
         run: |
           gcloud run deploy turnilo \
             --image $IMAGE_NAME:latest \
@@ -45,7 +45,7 @@ jobs:
             --cpu 1 --memory 1G --max-instances 1 --concurrency 80 \
             --args="--examples"
 
-      - name: Delete previous Docker image
+      - name: Delete previous Docker image(s)
         run: |
           gcloud container images list-tags $IMAGE_NAME --filter='-tags:*' --format='get(digest)' --limit=unlimited | \
           xargs -I {digest} gcloud container images delete "$IMAGE_NAME@{digest}" --quiet

.github/workflows/undeploy-branch.yml

@@ -0,0 +1,35 @@
+name: Undeploy Branch
+
+on:
+  pull_request:
+    types: [closed]
+
+jobs:
+  undeploy:
+
+    runs-on: ubuntu-latest
+
+    env:
+      IMAGE_NAME: eu.gcr.io/${{ secrets.GCP_PROJECT_ID }}/turnilo
+      REF_NAME: ${{ github.head_ref }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Authenticate on GCP
+        uses: google-github-actions/setup-gcloud@master
+        with:
+          project_id: ${{ secrets.GCP_PROJECT_ID }}
+          service_account_key: ${{ secrets.GCP_SA_KEY }}
+          export_default_credentials: true
+
+      - name: Undeploy app
+        run: |
+          gcloud run services delete turnilo-${REF_NAME//[^a-z0-9]/-} \
+            --region europe-west1 \
+            --quiet
+
+      - name: Delete Docker image
+        run: |
+          gcloud container images delete $IMAGE_NAME:$REF_NAME --quiet