{{- if .Values.networkPolicy.enabled }}
# NetworkPolicy mínima del shape rest-api: bajo deny-all-default del namespace, permite:
# - Ingress: Traefik Proxy (público) + Prometheus (scrape de /metrics).
# - Egress: DNS, Harbor pull HTTPS.
# Sin acceso a ns-addons (rest-api no tiene BD por diseño).
# Nota: el cluster tenant usa Traefik Proxy + Gateway API en ns traefik-system
# (ADR-060 Fase 1; reemplaza rke2-ingress-nginx que corría en kube-system).
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: {{ .Release.Name }}
  labels:
    {{- include "app.labels" . | nindent 4 }}
spec:
  podSelector:
    matchLabels:
      {{- include "app.selectorLabels" . | nindent 6 }}
  policyTypes: [Ingress, Egress]

  ingress:
    # Tráfico HTTP desde Traefik Proxy (Gateway API, ADR-060 Fase 1).
    # El controller corre en ns traefik-system (lo instala el bundle traefik-bootstrap).
    - from:
        - namespaceSelector:
            matchLabels:
              kubernetes.io/metadata.name: {{ .Values.networkPolicy.ingressControllerNamespace | default "traefik-system" }}
      ports:
        - protocol: TCP
          port: 8000
    # Scrape de métricas Prometheus
    - from:
        - namespaceSelector:
            matchLabels:
              kubernetes.io/metadata.name: cattle-monitoring-system
          podSelector:
            matchLabels:
              app.kubernetes.io/name: prometheus
      ports:
        - protocol: TCP
          port: 8000

  egress:
    # DNS
    - to:
        - namespaceSelector:
            matchLabels:
              kubernetes.io/metadata.name: kube-system
      ports:
        - protocol: UDP
          port: 53
        - protocol: TCP
          port: 53
    # Harbor pull (registro de imágenes) — HTTPS abierto
    - to:
        - ipBlock:
            cidr: 0.0.0.0/0
      ports:
        - protocol: TCP
          port: 443
{{- end }}