I have a GKE cluster running and trying to setup some dashboard and enable alerting.
ONe alert/event i l;ike to setup is when a kubernetes node is above 90% cpu utilization or memory above 90%. do i need to setup a MQL or PRMOQL query for this?
You can set up the Prometheus Stack with Alertmanager if you prefer self-managed monitoring tools. However, if you're short on time, you can opt for the managed service offered by GCP. The documentation at https://cloud.google.com/kubernetes-engine/docs/concepts/observability might be helpful for you!