jakman85andClaude Opus 4.8
d9a80e5350
Prep only — nothing deployed; running cluster untouched. Reconciliation graph (operator-approved Option A): author clusters/dev/rollout/ = 4 per-component Flux Kustomizations (kyverno->cilium->longhorn->monitoring, monitoring dependsOn longhorn). Dev overlay $patch:delete's the monolithic base platform/apps and adds ./rollout, so only the no-secret tier reconciles; the secret-blocked components are simply not created until hand-offs arrive. The no-secret tier carries no SOPS content, so it needs no sops-age key. prod is untouched (still builds the monolith). Convergence path coded in (delete rollout/ + the two deletes) — R-ENV-02 divergence flagged for architect review. Component hardening via cluster-vars (prod keeps strict posture): - KYVERNO_VALIDATION_ACTION Enforce->Audit(dev), _WEBHOOK_FAILURE_POLICY Fail->Ignore(dev), _ADMISSION_REPLICAS 3->1(dev); webhook namespaceSelector excludes system+platform namespaces. - MONITORING_STORAGE_CLASS var; GRAFANA_ADMIN_SECRET var (dev ''=chart default); Alertmanager SMTP/secret deferred to Phase-4 with verbatim re-enable markers. Cilium parity verified against the live CNI (no-op adopt). Validated: kubectl kustomize dev/prod/all-components, envsubst->YAML parse, make -C ci gate PASS. Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
44 lines
1.7 KiB
YAML
44 lines
1.7 KiB
YAML
# Serves: R-NET-01 (baseline must actually deny both directions)
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# Spec: docs/03 "Deny all ingress and deny all egress by default".
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#
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# Catches a MALFORMED baseline: a NetworkPolicy claiming to be the default-deny
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# baseline (label homelab.keithjackson.dev/baseline=default-deny) that does not
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# actually cover BOTH Ingress and Egress is rejected. This is the "test the
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# behavior, not the existence" guard for R-NET-01 at the manifest layer -- an
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# object existing is not proof it denies (docs/14 principle 1).
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apiVersion: kyverno.io/v1
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kind: ClusterPolicy
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metadata:
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name: validate-default-deny-shape
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annotations:
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policies.kyverno.io/title: Validate default-deny baseline shape
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policies.kyverno.io/category: Network Isolation
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policies.kyverno.io/severity: high
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homelab.keithjackson.dev/requirements: R-NET-01
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policies.kyverno.io/description: >-
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A NetworkPolicy labelled as the default-deny baseline must set policyTypes
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to include both Ingress and Egress. Rejects a baseline that silently leaves
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a direction open.
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spec:
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validationFailureAction: ${KYVERNO_VALIDATION_ACTION}
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background: true
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rules:
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- name: baseline-must-deny-both-directions
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match:
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any:
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- resources:
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kinds:
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- NetworkPolicy
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selector:
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matchLabels:
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homelab.keithjackson.dev/baseline: default-deny
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validate:
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message: >-
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A default-deny baseline NetworkPolicy must set spec.policyTypes to include
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BOTH Ingress and Egress (R-NET-01, docs/03).
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pattern:
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spec:
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policyTypes:
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- Ingress
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- Egress
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