Question

Your team runs a photo-sharing app. Whenever a user uploads an original image to a Cloud Storage bucket, you must automatically generate a thumbnail and write it to a second bucket. The processing code takes a few seconds per image, there is no steady traffic pattern, and the team wants to avoid managing any servers or clusters. Which compute option best fits this requirement?

Accepted Answer

Deploy a Cloud Function triggered by the Cloud Storage object finalize event.

Answer

Create a Compute Engine managed instance group that polls the bucket for new objects.

Answer

Run a GKE Standard cluster with a Deployment that watches the bucket.

Answer

Deploy the code to App Engine standard and configure a cron job to scan the bucket every minute.