quorate/vendor/workloads/grafana/network-policies.yaml

---
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
  name: grafana
  namespace: grafana
spec:
  endpointSelector:
    matchLabels:
      app.kubernetes.io/name: grafana
      app.kubernetes.io/instance: grafana
  ingress:
    # Kubelet probes, local port-forwarding, and same-node Gateway backend flows.
    - fromEntities:
        - host
      toPorts:
        - ports:
            - port: "3000"
              protocol: TCP
    # Gateway I Envoy proxy: outbound connections use reserved:ingress identity.
    - fromEntities:
        - ingress
      toPorts:
        - ports:
            - port: "3000"
              protocol: TCP
    - fromEndpoints:
        - matchLabels:
            k8s:io.kubernetes.pod.namespace: kube-system
            gateway.networking.k8s.io/gateway-name: gateway-internal
      toPorts:
        - ports:
            - port: "3000"
              protocol: TCP
    - fromEndpoints:
        - matchLabels:
            k8s:io.kubernetes.pod.namespace: grafana
            app.kubernetes.io/name: grafana-operator
            app.kubernetes.io/instance: grafana-operator
      toPorts:
        - ports:
            - port: "3000"
              protocol: TCP
  egress:
    - toEndpoints:
        - matchLabels:
            k8s:io.kubernetes.pod.namespace: minecraft
            app.kubernetes.io/name: minecraft
            app.kubernetes.io/instance: skies
      toPorts:
        - ports:
            - port: "25575"
              protocol: TCP
    - toEndpoints:
        - matchLabels:
            k8s:io.kubernetes.pod.namespace: versitygw
            app.kubernetes.io/name: versitygw
      toPorts:
        - ports:
            - port: "7070"
              protocol: TCP
    - toFQDNs:
        - matchName: s3.quorate.internal
      toPorts:
        - ports:
            - port: "443"
              protocol: TCP
    - toEndpoints:
        - matchLabels:
            k8s:io.kubernetes.pod.namespace: postgres
            cnpg.io/cluster: main
      toPorts:
        - ports:
            - port: "5432"
              protocol: TCP
    - toEndpoints:
        - matchLabels:
            k8s:io.kubernetes.pod.namespace: victoriametrics
            app.kubernetes.io/name: vmauth
      toPorts:
        - ports:
            - port: "8427"
              protocol: TCP
    - toEndpoints:
        - matchLabels:
            k8s:io.kubernetes.pod.namespace: kube-system
            k8s-app: kube-dns
      toPorts:
        - ports:
            - port: "53"
              protocol: UDP
            - port: "53"
              protocol: TCP
          rules:
            dns:
              - matchPattern: "*"
    - toServices:
        - k8sService:
            namespace: kube-system
            serviceName: kube-dns
      toPorts:
        - ports:
            - port: "53"
              protocol: UDP
            - port: "53"
              protocol: TCP
---
apiVersion: cilium.io/v2
kind: CiliumClusterwideNetworkPolicy
metadata:
  name: gateway-internal-egress-grafana
spec:
  endpointSelector:
    matchLabels:
      "reserved:ingress": ""
  egress:
    - toEndpoints:
        - matchLabels:
            k8s:io.kubernetes.pod.namespace: grafana
            app.kubernetes.io/name: grafana
            app.kubernetes.io/instance: grafana
      toPorts:
        - ports:
            - port: "3000"
              protocol: TCP
---
apiVersion: cilium.io/v2
kind: CiliumClusterwideNetworkPolicy
metadata:
  name: host-egress-grafana
spec:
  nodeSelector: {}
  egress:
    - toEndpoints:
        - matchLabels:
            k8s:io.kubernetes.pod.namespace: grafana
            app.kubernetes.io/name: grafana
            app.kubernetes.io/instance: grafana
      toPorts:
        - ports:
            - port: "3000"
              protocol: TCP
---
# Same-node Gateway backend selections can return to node-local ephemeral
# source ports via the host path.
apiVersion: cilium.io/v2
kind: CiliumClusterwideNetworkPolicy
metadata:
  name: host-ingress-grafana-replies
spec:
  nodeSelector: {}
  ingress:
    - fromEndpoints:
        - matchLabels:
            k8s:io.kubernetes.pod.namespace: grafana
            app.kubernetes.io/name: grafana
            app.kubernetes.io/instance: grafana
      toPorts:
        - ports:
            - port: "32768"
              endPort: 60999
              protocol: TCP
---
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
  name: grafana-artifacts
  namespace: versitygw
spec:
  endpointSelector:
    matchLabels:
      app.kubernetes.io/name: versitygw
      app.kubernetes.io/instance: versitygw
  ingress:
    - fromEndpoints:
        - matchLabels:
            k8s:io.kubernetes.pod.namespace: grafana
            app.kubernetes.io/name: grafana
            app.kubernetes.io/instance: grafana
      toPorts:
        - ports:
            - port: "7070"
              protocol: TCP