I'm aware that Google Cloud Run will send SIGTERM when it's actually shutting an instance down, but what I need is to identify when an instance of a container is no longer serving traffic, since they can continue to run for 15 minutes to an hour after that.
Is that possible?
From my experience, using Cloud Logging or Cloud Monitoring API could allow to get this information, for example in cloud logging getting the last requests using the request below:
resource.type = "cloud_run_revision"
resource.labels.service_name = "backend"
resource.labels.location = "europe-west3"
httpRequest:*You can use the gcloud cli(gcloud logging read) or the console