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H-07 Networking

Brick H of the Enterprise AI Platform. Technology: Cilium (CNI, NetworkPolicy, L7 policies, Hubble, WireGuard encryption) + ingress/gateway. French version: ../../fr/bricks/H-07-networking.md.

Role and responsibilities​

  • Default deny between namespaces, explicit allow per flow, egress allowlist to providers per tenant policy.

Position and interactions​

  • Execution path: data path.
  • global.networkPolicy=cilium renders CiliumNetworkPolicies; egress to external LLM providers only from LiteLLM pods.

Open source and developed parts​

  • Open source reused: Cilium, Hubble, cert-manager.
  • Developed in the platform: Flow matrix and policies in the chart.

Data model​

No dedicated table: state lives in Kubernetes objects, Git and the tool's own storage; actions are audited in eai.audit_events through the Control Plane when they go through the API.

Contract: contracts/v1/policy-contract.schema.json (schema_version 1.0). Usage is always reported with contracts/v1/usage-event.schema.json, audit with contracts/v1/audit-event.schema.json.

API endpoints​

MethodPath
GET/readyz

GET /readyz​

Response:

{
  "status": "ready",
  "checks": {
    "postgres": "ok",
    "redis": "ok",
    "clickhouse": "ok"
  }
}

SDK examples​

Python​

from enterprise_ai import EnterpriseAI

client = EnterpriseAI(base_url="<control-plane-url>", api_key="eai_live_xxx", tenant="acme", locale="en")
client.system.readyz()

TypeScript​

import { EnterpriseAI } from "@enterprise-ai/sdk";

const client = new EnterpriseAI({ baseUrl: "<control-plane-url>", apiKey: process.env.EAI_API_KEY, tenant: "acme", locale: "en" });
await client.meta.ready();

Java​

EnterpriseAIClient client = EnterpriseAIClient.builder()
    .baseUrl("<control-plane-url>")
    .apiKey(System.getenv("EAI_API_KEY"))
    .tenant("acme")
    .locale(Locale.ENGLISH)
    .build();
client.meta().ready();

Go​

client, err := eai.NewClient(eai.WithBaseURL("<control-plane-url>"), eai.WithAPIKey(os.Getenv("EAI_API_KEY")), eai.WithTenant("acme"), eai.WithLocale("en"))
if err != nil { log.Fatal(err) }
ctx := context.Background()
_, err = client.Meta.Ready(ctx, nil)

Configuration​

No EAI_* variable: configured through Helm values and the tool's own configuration.

Helm values keys (deploy/helm/enterprise-ai/values.yaml): global.networkPolicy, global.trustDomain.

Security​

  • WireGuard node to node encryption, mTLS via SPIFFE identities.
  • Tenant resolved from the credential, never from the body; PostgreSQL row level security on every tenant table.
  • Every mutation and policy decision writes a hash chained audit event (G-11).
  • Errors use the standard envelope with message_i18n en and fr.

Observability​

  • Hubble flow logs for denied flows.
  • W3C traceparent propagated, X-Request-Id returned, spans carry eai.tenant_id, eai.project, eai.agent_id, eai.run_id.

FinOps units​

  • Egress bytes per namespace recorded for cost allocation.

Failure modes and resilience​

  • Policy error -> CI connectivity test fails before deploy.

Standalone adoption​

Policies are portable to any Cilium cluster.

Acceptance tests​

  1. A sandbox pod cannot reach the database.
  2. Control plane cannot reach the internet directly.

Implementation roadmap