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zeekay
3bb399cbdd
Adds the topology contract that lets a fund run mpcd as its own private
cluster — no Lux primary network registration, no shared M-Chain audit
ledger — using the same code path and the same operator surface.
Mode flag at cmd/mpcd/main.go:
--network=primary|private # registration target
--audit-store=mchain|local-worm|... # audit log destination
--registrar-url, --registrar-auth # primary-mode announcement
--audit-worm-path, --audit-mchain-url # backend selectors
pkg/audit:
- Append-only Merkle hash chain. Tampering with any historical event
invalidates every subsequent hash. Canonical bytes use fixed-order
concatenation (json.Marshal map ordering is non-deterministic).
- WORMDispatcher: NDJSON append, replay-on-start, fsync per Append.
- MChainDispatcher: batched POST of (batchHash, fromSeq, toSeq) to a
configurable anchor RPC.
- compositeDispatcher: fan-out to multiple legs with per-leg sealing.
- S3 Glacier Vault / Azure Immutable / GCS Object Lock dispatchers
fail closed — wired into the flag surface but gated behind the
cloud-audit build tag, no silent fallback.
pkg/identity/bootstrap.go: identity creation + (primary-mode only)
registrar announcement. Same on-disk format as the previous
loadOrGenerateIdentity (which is now removed); private mode is silent.
deployments/k8s-private: fund-only Kustomize overlay. Standalone
namespace, NetworkPolicy that blocks egress to anything outside the
fund's VPC, hardware-WORM PVC for the audit log, KMS-driven secret
template.
deployments/k8s-primary: env-var patch overlay on the existing lux-mpc
base. composite(local-worm,mchain) by default.
deployments/terraform/{aws,gcp,azure}: VPC + audit storage modules.
terraform validate passes; EKS/GKE/AKS + HSM modules are stubbed and
not yet plan-tested.
deployments/onprem/README.md: WORM storage + PKCS#11 HSM checklist.
Tests (14 total, all passing):
pkg/audit: 6/6 (chain, WORM replay, MChain batching, composite,
cloud stubs fail loud, double-seal rejected)
pkg/identity: 4/4 (private no-call, primary call, primary empty
URL no-op, primary registrar 503 surfaces)
internal/privatemode: 4/4 (no registrar traffic, restart, tamper-detect,
cloud stubs fail loud)
Companion runbook in lux/papers/lux-private-mpc-deployment/
(LaTeX, 5 pages, tectonic-clean).
34 lines
985 B
YAML
34 lines
985 B
YAML
apiVersion: kustomize.config.k8s.io/v1beta1
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kind: Kustomization
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# Private mode: fund-only mpc cluster. No M-Chain registration. Audit
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# log lands on a hardware-WORM volume mounted at /data/mpc.
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#
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# Standalone overlay — does NOT inherit the lux-mpc base because the
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# fund's namespace, network policy, and image policy diverge enough
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# from the Lux-operated cluster that a shared base would couple them
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# permanently. One-and-only-one-way still applies: this file is the
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# only entry point for fund operators.
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#
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# Apply with:
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# kubectl apply -k k8s/private/
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namespace: fund-mpc
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resources:
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- namespace.yaml
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- mpc-statefulset.yaml
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- mpc-secrets.yaml
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- private-network-policy.yaml
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labels:
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- pairs:
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app.kubernetes.io/part-of: lux-mpc
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lux.network/mpc-mode: private
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# Image is pinned per-release; the tag is the only thing operators
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# bump between deployments. CI tags new releases as v1.<minor>.<patch>.
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images:
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- name: ghcr.io/luxfi/mpc
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newTag: v1.10.0
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