tegwick
5b5196eea7
Assistant: codex Assistant-Model: gpt-5.6-sol Assistant-Session: 01a025c2-407a-7a32-b40a-f37a52f03f62
111 lines
3.2 KiB
YAML
111 lines
3.2 KiB
YAML
# Default-deny plus the narrowest set of exceptions (AUDIT-WP-0005-T03).
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#
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# The receiver holds the audit trail, so reachability is part of its threat
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# model: only the declared sender may write, and only the declared operator
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# path may read.
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---
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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: audit-core-default-deny
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namespace: audit-core
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spec:
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podSelector: {}
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policyTypes: [Ingress, Egress]
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# No rules: everything not permitted below is denied.
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---
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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: audit-core-sender-ingress
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namespace: audit-core
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spec:
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podSelector:
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matchLabels:
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app.kubernetes.io/name: audit-core
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policyTypes: [Ingress]
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ingress:
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# user-engine is the only sender. A second sender is a deliberate change
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# here and a matching entry in AUDIT_CORE_SENDERS — the network rule and
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# the credential binding must move together.
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- from:
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- namespaceSelector:
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matchLabels:
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kubernetes.io/metadata.name: user-engine
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ports:
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- {protocol: TCP, port: 8080}
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---
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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: audit-core-whitehat-ingress
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namespace: audit-core
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spec:
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podSelector:
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matchLabels:
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app.kubernetes.io/name: audit-core
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policyTypes: [Ingress]
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ingress:
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# Governed E2 evidence plane. Both selectors belong to one peer and are
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# therefore ANDed: only the registered audit-core probe in the dedicated
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# whitehat namespace reaches this port. Application sender authentication
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# and tenant scope remain the inner boundary.
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- from:
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- namespaceSelector:
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matchLabels:
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kubernetes.io/metadata.name: whitehat
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podSelector:
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matchLabels:
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whitehat.security/plane: "true"
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whitehat.security/target: audit-core
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ports:
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- {protocol: TCP, port: 8080}
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---
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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: audit-core-operator-ingress
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namespace: audit-core
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spec:
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podSelector:
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matchLabels:
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app.kubernetes.io/name: audit-core
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policyTypes: [Ingress]
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ingress:
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# Operator read path: lookup, dead letters, secret findings, stats.
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# Namespace-scoped rather than open, and still gated on a credential
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# carrying may_read — the network rule is the outer of two checks, not the
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# only one.
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- from:
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- namespaceSelector:
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matchLabels:
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railiance.io/audit-core-reader: "true"
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ports:
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- {protocol: TCP, port: 8080}
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---
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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: audit-core-egress
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namespace: audit-core
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spec:
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podSelector:
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matchLabels:
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app.kubernetes.io/name: audit-core
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policyTypes: [Egress]
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egress:
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# PostgreSQL custody store. This is the only destination the receiver needs;
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# it calls no other service.
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- to:
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- namespaceSelector:
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matchLabels:
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kubernetes.io/metadata.name: databases
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ports:
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- {protocol: TCP, port: 5432}
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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, port: 53}
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- {protocol: TCP, port: 53}
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