gwg313
e507515766
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Signed-off-by: gwg313 <gwg313@pm.me>
85 lines
2.1 KiB
YAML
85 lines
2.1 KiB
YAML
apiVersion: kyverno.io/v1
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kind: ClusterPolicy
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metadata:
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name: generate-namespace-network-baseline
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annotations:
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policies.kyverno.io/title: Generate Namespace Network Baseline
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policies.kyverno.io/category: Network Security
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policies.kyverno.io/severity: high
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policies.kyverno.io/description: >-
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Automatically provisions a baseline CiliumNetworkPolicy
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with default deny ingress and controlled DNS egress.
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argocd.argoproj.io/sync-options: Replace=true
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spec:
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background: true
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rules:
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- name: generate-baseline-cnp
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match:
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any:
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- resources:
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kinds:
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- Namespace
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exclude:
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any:
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- resources:
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namespaces:
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- default
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- kube-system
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- kube-public
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- kube-node-lease
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- kyverno
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- argocd
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- cert-manager
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- monitoring
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- cilium-secrets
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- cilium-ingress
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- sealed-secrets
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- tekton-pipelines
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- tekton-pipelines-resolvers
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- pipelines-as-code
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generate:
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synchronize: true
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apiVersion: cilium.io/v2
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kind: CiliumNetworkPolicy
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name: baseline-network-security
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namespace: "{{ request.object.metadata.name }}"
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data:
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metadata:
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labels:
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security-tier: baseline
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annotations:
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argocd.argoproj.io/sync-options: Prune=false
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spec:
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endpointSelector: {}
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policyTypes:
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- Ingress
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- Egress
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ingress: []
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egress:
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- toEndpoints:
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- matchLabels:
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k8s:io.kubernetes.pod.namespace: kube-system
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k8s-app: kube-dns
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toPorts:
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- ports:
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- port: "53"
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protocol: UDP
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- port: "53"
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protocol: TCP
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rules:
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dns:
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- matchPattern: "*"
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