server/monitoring/alertmanagerconfig-ntfy-webhook.yaml

apiVersion: monitoring.coreos.com/v1alpha1
kind: AlertmanagerConfig
metadata:
  name: alertmanagerconfig-ntfy-webhook
  namespace: monitoring
  labels:
    alertmanagerConfig: ntfy-webhook
spec:
  route:
    groupBy: ['job']
    groupWait: 30s
    groupInterval: 5m
    repeatInterval: 12h
    receiver: 'ntfy'
  receivers:
  - name: 'ntfy'
    webhookConfigs:
    - url: 'http://ntfy-alertmanager.monitoring.svc.cluster.local/'
      httpConfig:
        basicAuth:
          username:
            name: ntfy-alertmanager-user
            key: name
          password:
            name: ntfy-alertmanager-user
            key: password