Having a look at our Prometheus rules and comparing them to the runbook entries, it seems we have a few missing entries. Using yq and comparing the entries I've found to what's in the runbook repo, the following Prometheus rules are missing runbook entries:

• ExtremelyHighIndividualControlPlaneMemory
• HighOverallControlPlaneMemory
• KubeletHealthState
• MCDPivotError
• MCDRebootError
• SystemMemoryExceedsReservation

Done When:

• Each of the following Prometheus rules has an entry in the runbook repository.

Notes:

• I've excluded MCDDrainError (as MCCDrainError) because that effort is being tracked here: https://issues.redhat.com/browse/MCO-88.
• I've also excluded MCDRebootError since there is additional investigative work that needs to be done. This is being tracked in https://issues.redhat.com/browse/MCO-203.
• The yq command I used to generate the above list is: $ yq eval-all '.spec[][].rules[].alert' ./install/0000_90_machine-config-operator_01_prometheus-rules.yaml | sort | uniq