groups:
- name: ./kube-scheduler.rules
  rules:
  - alert: K8SSchedulerDown
    expr: absent(up{job="kube-scheduler"} == 1)
    for: 5m
    labels:
      severity: critical
    annotations:
      description: There is no running K8S scheduler. New pods are not being assigned
        to nodes.
      runbook: https://coreos.com/tectonic/docs/latest/troubleshooting/controller-recovery.html#recovering-a-scheduler
      summary: Scheduler is down