How to stop creating extra instances when using google managed vms?

Question

Every time I deploy to Google\'s Managed VM service, the console automatically creates a duplicated instance. I am up to 15 instances running in parallel. I even tried using

Answer 1

You can deploy over the same version each time:

gcloud preview app deploy "...\app.yaml" --set-default --version=version-name

This will stop creating VMs.