Add logging to webapp deployer (#863)

Helps with diagnosing failures and odd behavior seen in the deployer in production.

Reviewed-on: #863
Co-authored-by: David Boreham <david@bozemanpass.com>
Co-committed-by: David Boreham <david@bozemanpass.com>

stack_orchestrator/deploy/webapp/deploy_webapp_from_registry.py

@@ -122,21 +122,26 @@ def process_app_deployment_request(
         shared_tag_exists = remote_image_exists(image_registry, app_image_shared_tag)
         if shared_tag_exists and not force_rebuild:
             # simply add our unique tag to the existing image and we are done
-            logger.log(f"Using existing app image {app_image_shared_tag} for {deployment_container_tag}")
+            logger.log(
+                f"Existing image found for this app: {app_image_shared_tag} "
+                "tagging it with: {deployment_container_tag} to use in this deployment"
+                )
             add_tags_to_image(image_registry, app_image_shared_tag, deployment_container_tag)
             logger.log("Tag complete")
         else:
             extra_build_args = []  # TODO: pull from request
-            logger.log(f"Building container image {deployment_container_tag}")
+            logger.log(f"Building container image: {deployment_container_tag}")
             build_container_image(app, deployment_container_tag, extra_build_args, logger)
             logger.log("Build complete")
-            logger.log(f"Pushing container image {deployment_container_tag}")
+            logger.log(f"Pushing container image: {deployment_container_tag}")
             push_container_image(deployment_dir, logger)
             logger.log("Push complete")
             # The build/push commands above will use the unique deployment tag, so now we need to add the shared tag.
-            logger.log(f"Updating app image tag {app_image_shared_tag} from build of {deployment_container_tag}")
+            logger.log(f"Adding global app image tag: {app_image_shared_tag} to newly built image: {deployment_container_tag}")
             add_tags_to_image(image_registry, deployment_container_tag, app_image_shared_tag)
             logger.log("Tag complete")
+    else:
+        logger.log("Requested app is already deployed, skipping build and image push")
 
     # 7. update config (if needed)
     if not deployment_record or file_hash(deployment_config_file) != deployment_record.attributes.meta.config:

stack_orchestrator/deploy/webapp/util.py

@@ -299,11 +299,12 @@ def push_container_image(deployment_dir, logger):
 
 def deploy_to_k8s(deploy_record, deployment_dir, logger):
     if not deploy_record:
-        command = "up"
+        command = "start"
     else:
         command = "update"
 
     logger.log("Deploying to k8s ...")
+    logger.log(f"Running {command} command on deployment dir: {deployment_dir}")
     result = subprocess.run([sys.argv[0], "deployment", "--dir", deployment_dir, command],
                             stdout=logger.file, stderr=logger.file)
     result.check_returncode()