Alertmanager

Checks Prometheus AlertManager for any firing alerts.

The following example transforms the list of alerts so that each alert becomes a single check result. Without the transform the health check will fail if any alerts are firing.

alert-manager-check.yaml

apiVersion: canaries.flanksource.com/v1
kind: Canary
metadata:
  name: alertmanager-check
spec:
  schedule: "*/5 * * * *"
  alertmanager:
    - host: alertmanager.example.com
      alerts:
        - .*
      ignore:
        - KubeScheduler.*
        - Watchdog
      transform:
        javascript: |
          var out = _.map(results, function(r) {
            return {
              name: r.name,
              labels: r.labels,
              icon: 'alert',
              message: r.message,
              description: r.message,
            }
          })
          JSON.stringify(out);

Field	Description	Scheme	Required
alerts	A list of alert prefix names to include	[]string
ignore	A list of alert prefix names to exclude	[]string
filters	A map of label to value prefixes to find alerts on	map[string]string
*	All other commons field	Common
Connection
connection	Path of existing connection e.g. connection://alertmanager/instance/ Mutually exclusive with username, password, host	Connection
host	Host endpoint mutually exclusive with connection	string
username	Mutually exclusive with connection	EnvVar
password	Mutually exclusive with connection	EnvVar