gcloud-lab/apps/base/osint-dashboard/templates/security/nats-netpol.yaml

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{{- if .Values.networkPolicies.enabled }}
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: nats-netpol
namespace: {{ .Values.namespace }}
labels:
{{- include "osint-dashboard.labels" . | nindent 4 }}
app.kubernetes.io/component: security
spec:
podSelector:
matchLabels:
app.kubernetes.io/name: osint-dashboard
app.kubernetes.io/component: messaging
policyTypes:
- Ingress
- Egress
ingress:
# Allow client connections from dashboard services
- from:
- podSelector:
matchLabels:
app.kubernetes.io/name: osint-dashboard
ports:
- protocol: TCP
port: {{ .Values.nats.ports.client }}
# Allow cluster communication
- from:
- podSelector:
matchLabels:
app.kubernetes.io/name: osint-dashboard
app.kubernetes.io/component: messaging
ports:
- protocol: TCP
port: {{ .Values.nats.ports.cluster }}
# Allow monitoring
- from:
- podSelector:
matchLabels:
app.kubernetes.io/component: monitoring
ports:
- protocol: TCP
port: {{ .Values.nats.ports.monitor }}
egress:
# Allow DNS
- to:
- namespaceSelector: {}
podSelector:
matchLabels:
k8s-app: kube-dns
ports:
- protocol: UDP
port: 53
- protocol: TCP
port: 53
# Allow cluster communication
- to:
- podSelector:
matchLabels:
app.kubernetes.io/name: osint-dashboard
app.kubernetes.io/component: messaging
ports:
- protocol: TCP
port: {{ .Values.nats.ports.cluster }}
- protocol: TCP
port: {{ .Values.nats.ports.client }}
{{- end }}