How to list all the keys of a GCP service account.
gcloud iam service-accounts keys list \
--iam-account=your-service-account@your-project-id.iam.gserviceaccount.com \
--project project-id
Result. Keys are redacted.
KEY_ID CREATED_AT EXPIRES_AT DISABLED
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 2022-01-10T19:21:18Z 2022-01-26T19:21:18Z
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 2022-01-19T00:06:49Z 2022-02-04T00:06:49Z