ADD: automatic deploy to CloudRun via Github Actions

.github/workflows/gcr-deploy.yaml

@@ -0,0 +1,75 @@
+name: build
+
+on:
+  push:
+    branches:
+    - main
+
+# Environment variables available to all jobs and steps in this workflow
+env:
+  RUN_PROJECT: ${{ secrets.RUN_PROJECT }}
+  RUN_REGION: ${{ secrets.RUN_REGION }}
+  RUN_SERVICE: ${{ secrets.RUN_SERVICE }}
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+
+      # Setup gcloud CLI
+      - uses: google-github-actions/setup-gcloud@main
+        with:
+          project_id: ${{ env.RUN_PROJECT }}
+          service_account_key: ${{ secrets.GCP_SA_KEY }}
+
+      # Configure gcloud CLI
+      - name: gcloud Set up
+        run: |
+          gcloud config set project $RUN_PROJECT
+
+      # Build and push image to Google Container Registry
+      - name: Build
+        run: |
+          docker build \
+            --build-arg COMMIT=${GITHUB_SHA:0:7} \
+            --build-arg LASTMOD=$(date -u +%Y-%m-%dT%H:%M:%SZ) \
+            --tag gcr.io/$RUN_PROJECT/$RUN_SERVICE:$GITHUB_SHA .
+
+      - name: GCloud auth to docker
+        run: |
+          gcloud auth configure-docker
+
+      - name: Push to registry
+        run: |
+          docker push gcr.io/$RUN_PROJECT/$RUN_SERVICE:$GITHUB_SHA
+
+  deploy:
+    name: Deploy
+    needs: build
+    runs-on: ubuntu-latest
+
+    steps:
+      # Setup gcloud CLI
+      - uses: google-github-actions/setup-gcloud@main
+        with:
+          project_id: ${{ env.RUN_PROJECT }}
+          service_account_key: ${{ secrets.GCP_SA_KEY }}
+
+      # Configure gcloud CLI
+      - name: gcloud Set up
+        run: |
+          gcloud config set project $RUN_PROJECT
+
+      # Deploy to CloudRun
+      - name: Deploy $RUN_SERVICE
+        run: |
+          gcloud run deploy $RUN_SERVICE \
+            --allow-unauthenticated \
+            --image gcr.io/$RUN_PROJECT/$RUN_SERVICE:$GITHUB_SHA \
+            --platform managed \
+            --project ${RUN_PROJECT} \
+            --region $RUN_REGION