# API: Anfragen von Traefik und vom Frontend. Raus nur zu Postgres und per
# 443 zu oeffentlichen Adressen (Have I Been Pwned, Open-Meteo, Entra-Login).
# Canal kennt keine FQDN-Regeln, darum "443 ohne private Bereiche"; den
# SSRF-Schutz fuer Webhook-Ziele behaelt die App (webhook-url-guard.ts).
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: apicore-api
spec:
  podSelector:
    matchLabels:
      app: apicore-backend
  policyTypes: [Ingress, Egress]
  ingress:
    - from:
        - namespaceSelector:
            matchLabels:
              kubernetes.io/metadata.name: kube-system
          podSelector:
            matchLabels:
              app.kubernetes.io/name: rke2-traefik
        - podSelector:
            matchLabels:
              app: apicore-frontend
      ports:
        - {protocol: TCP, port: 3001}
  egress:
    - to:
        - podSelector:
            matchLabels:
              app.kubernetes.io/name: apicore-postgres
      ports:
        - {protocol: TCP, port: 5432}
    - to:
        - ipBlock:
            cidr: "0.0.0.0/0"
            except: ["10.0.0.0/8", "172.16.0.0/12", "192.168.0.0/16", "100.64.0.0/10", "169.254.0.0/16", "127.0.0.0/8"]
        - ipBlock:
            cidr: "::/0"
            except: ["fc00::/7", "fe80::/10", "::1/128"]
      ports:
        - {protocol: TCP, port: 443}