Files
launchpad/cluster-resources/network/deny-external-egress-trivy.yaml
2026-04-25 16:04:13 +02:00

38 lines
933 B
YAML

apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: deny-external-egress
namespace: trivy-system
labels:
app.kubernetes.io/managed-by: argocd
app.kubernetes.io/part-of: network-policies
spec:
endpointSelector: {}
egress:
# Allow DNS resolution
- toEndpoints:
- matchLabels:
io.kubernetes.pod.namespace: kube-system
k8s-app: kube-dns
toPorts:
- ports:
- port: "53"
protocol: UDP
- port: "53"
protocol: TCP
# Allow cluster-internal traffic (RFC1918)
- toCIDR:
- 10.0.0.0/8
- 172.16.0.0/12
- 192.168.0.0/16
# Allow Trivy vulnerability DB downloads (ghcr.io OCI registry)
- toFQDNs:
- matchName: ghcr.io
- matchName: pkg-containers.githubusercontent.com
toPorts:
- ports:
- port: "443"
protocol: TCP