37 lines
855 B
YAML
37 lines
855 B
YAML
# Pehle sab band. Pod compromise ho to wo cluster me idhar-udhar na ja sake.
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apiVersion: networking.k8s.io/v1
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kind: NetworkPolicy
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metadata:
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name: default-deny-all
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namespace: demo-app
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spec:
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podSelector: {}
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policyTypes: [Ingress, Egress]
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---
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# Ab sirf jo chahiye wahi khola: app port par traffic andar, DNS bahar.
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apiVersion: networking.k8s.io/v1
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kind: NetworkPolicy
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metadata:
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name: allow-app
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namespace: demo-app
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spec:
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podSelector:
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matchLabels:
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app: demo-app
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policyTypes: [Ingress, Egress]
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ingress:
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- ports:
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- protocol: TCP
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port: 8000
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egress:
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# DNS ke bina kuch bhi kaam nahi karega
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- to:
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- namespaceSelector:
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matchLabels:
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kubernetes.io/metadata.name: kube-system
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ports:
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- protocol: UDP
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port: 53
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- protocol: TCP
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port: 53
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