cilium

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apiVersion: "cilium.io/v2"
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kind: CiliumNetworkPolicy
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metadata:
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  name: "l4-rules"
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spec:
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  endpointSelector:
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    matchLabels:
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      role: backend
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  ingress:
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  - fromEndpoints:
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    - matchLabels:
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        role: frontend
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  - toPorts:
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    - ports:
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      - port: "80"
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        protocol: TCP
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