Do expired SSH keys get deleted?

Google Cloud Compute Infrastructure
1

I added an SSH key with a ttl of 60 seconds with this command:

gcloud compute os-login ssh-keys add --key-file ~/.ssh/id_rsa.pub --ttl 60s

I expected after after expiration, the SSH key would be deleted. After the expiration, the key is still listed in the output of gcloud compute os-login ssh-keys list.

Do expired os-login SSH keys get periodically deleted?

For more background: I am creating and SSHing into temporary GCP instances for automated tests. I want to delete expired SSH keys to avoid the error Login profile size exceeds 32 KiB. Delete profile values to make additional space. described here: https://github.com/kyma-project/test-infra/issues/93.

Sincerely,
Kevin

2

I may have spoken too soon. After waiting a day, the key no longer appears in gcloud compute os-login ssh-keys list.

I am still curious when SSH keys are expected to be deleted, but this resolves my issue.