feat: add cloudbuild.yaml generation for new apps

internal/serv/tmpl/cloudbuild.yaml

@@ -0,0 +1,42 @@
+steps:
+  # Build image with tag 'latest'
+  - name: "gcr.io/cloud-builders/docker"
+    args:
+      [
+        "build",
+        "--tag",
+        "gcr.io/$PROJECT_ID/{% app_name_slug %}:latest",
+        "--build-arg",
+        "GO_ENV=production",
+        ".",
+      ]
+
+  # Push new image to Google Container Registry
+  - name: "gcr.io/cloud-builders/docker"
+    args: ["push", "gcr.io/$PROJECT_ID/{% app_name_slug %}:latest"]
+
+  # Deploy image to Cloud Run
+  - name: "gcr.io/cloud-builders/gcloud"
+    args:
+      [
+        "run",
+        "deploy",
+        "data",
+        "--image",
+        "gcr.io/$PROJECT_ID/{% app_name_slug %}:latest",
+        "--add-cloudsql-instances",
+        "$PROJECT_ID:$REGION:{% app_name_slug %}_production",
+        "--region",
+        "$REGION",
+        "--platform",
+        "managed",
+        "--update-env-vars",
+        "GO_ENV=production,SG_DATABASE_HOST=/cloudsql/$PROJECT_ID:$REGION:{% app_name_slug %}_production,SECRETS_FILE=prod.secrets.yml",
+        "--port",
+        "8080",
+        "--service-account",
+        "$SERVICE_ACCOUNT",
+        "--allow-unauthenticated",
+        "--verbosity",
+        "debug",
+      ]