# kube_prometheus_alertmanager-networkPolicy.yaml
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  labels:
    app.kubernetes.io/component: alert-router
    app.kubernetes.io/instance: main
    app.kubernetes.io/name: alertmanager
    app.kubernetes.io/part-of: kube-prometheus
    app.kubernetes.io/version: 0.31.1
  name: alertmanager-main
  namespace: monitoring
spec:
  egress:
  - {}
  ingress:
  - from:
    - podSelector:
        matchLabels:
          app.kubernetes.io/name: prometheus
    ports:
    - port: 9093
      protocol: TCP
    - port: 8080
      protocol: TCP
  - from:
    - podSelector:
        matchLabels:
          app.kubernetes.io/name: alertmanager
    ports:
    - port: 9094
      protocol: TCP
    - port: 9094
      protocol: UDP
  podSelector:
    matchLabels:
      app.kubernetes.io/component: alert-router
      app.kubernetes.io/instance: main
      app.kubernetes.io/name: alertmanager
      app.kubernetes.io/part-of: kube-prometheus
  policyTypes:
  - Egress
  - Ingress