Define where to send your alerts

AlertManagerConfig.yaml

apiVersion: monitoring.coreos.com/v1alpha1
kind: AlertmanagerConfig
metadata:
  name: starburst-pagerduty
  namespace: <installation_namespace>
  labels:
    alertmanagerConfig: starburst
spec:
  route:
    groupBy: [alertname,cluster,service,job]
    groupWait: 2s #15s
    groupInterval: 2s #15s
    repeatInterval: 2s #15s
    receiver: 'pagerduty-instance'
    routes: 

   # Don't page on warnings

   # - match: 
   #     severity: 'warn'
   #   receiver: pagerduty-instance
   # - match: 
   #     severity: 'acknowledged'
   #   receiver: pagerduty-instance

   # Only pager under severe conditions 

    - match: 
        severity: 'page'
      receiver: pagerduty-instance

  receivers:
  - name: 'pagerduty-instance'
    pagerdutyConfigs:
    - serviceKey: 
        key: secretKey
        name: pagerduty-key
      url: https://events.pagerduty.com/generic/2010-04-15/create_event.json