Architecture & Internals

VaakOps Architecture

Decoupled control plane and distributed cluster operators enforcing desired state, continuous drift reconciliation, and autonomous self-healing loops across cloud providers.

Distributed Control Plane & Cluster Mesh

VaakOps decouples declarative policy authoring from runtime execution through lightweight cluster operators.

Central Control Plane

Unified control center managing clusters, tenant isolation, access tokens, environment topologies, and multi-region deployment strategies.

OPA Policy Admission Controller

Open Policy Agent (OPA) integration enforcing strict zero-trust network policies, image signing, resource quota limits, and IAM boundaries prior to admission.

Continuous Telemetry Mesh

Real-time metrics, OpenTelemetry traces, and structured log correlation detecting deployment anomalies and cascading latency spikes.

GitOps Reconciler Loop

Continuous bi-directional drift detection reconciling cluster workloads back to Git-defined source-of-truth states automatically.

Part I

Logical Architecture

Domain model decomposition, declarative pipeline state machines, uniform cloud adapter abstractions, OPA policy gates, and closed-loop reconciler automata.

1. LOGICAL ACTORS, CI TRIGGERS & AI SYNTHESIS INTERFACES DevOps Engineers & SREs (Canvas) AI Pipeline Synthesizer (Natural Lang) GitHub / GitLab SCM Webhook Triggers 2. PIPELINE INTELLIGENCE & GRAPH DOMAIN Topological DAG Engine Parallel step dependency fork/join VaagaGraph Blast Radius Dependency risk & impact analysis OPA Rego Policy Gate Zero-trust security & quota limits Promotion Matrix Dev → QA → Staging → Prod 3. UNIFORM ADAPTERS & SERVICE DEPLOYER CONTRACTS Multi-Cloud Provider Adapters (AWS, GCP, Azure, OCI) Credential brokering (STS / Workload Identity) & secret isolation Universal Service Deployers (K8s, ECS, Lambda, Static CDN) Standardized lifecycle hooks: plan(), apply(), verify(), rollback() 4. PROGRESSIVE CANARY CONTROLLER & GITOPS RECONCILER Canary Traffic Stepper Automated 10% → 25% → 50% → 100% Sub-5s Instant Rollback Automated circuit trip on P99 spike GitOps Drift Reconciler Continuous declarative state sync loops

Topological Dependency Resolution

Pipelines are modeled as directed acyclic graphs. The engine performs Kahn's topological sort with cycle detection, executing independent parallel stages concurrently while enforcing strict serialized ordering for dependent services.

VaagaGraph Blast-Radius Scoring

Every candidate deployment traverses the enterprise service graph in VaagaGraph. Blast radius scores calculate direct dependencies, downstream consumers, and shared data stores to dictate required approval quorums.

OPA Policy-as-Code Quality Gates

Declarative Rego policies evaluate every pipeline manifest against immutable guardrails: non-root execution, trusted enterprise container registries, signed provenance (Cosign), and strict memory quotas before admission.

Sub-5s Autonomous Rollback

During canary progression, real-time OpenTelemetry error rates and latency percentiles are polled. Any anomaly exceeding baseline contracts triggers instantaneous traffic shift back to stable baseline within 5 seconds without human intervention.

Part II

Technical Architecture & Physical Deployment Topology

Physical Kubernetes container sizing, sandboxed worker isolation, mTLS ingress, multi-cloud network routing, and high-availability state clusters.

1. INGRESS & SECURITY GATEWAY Cloudflare Edge & Envoy Ingress Gateway (TLS 1.3 / mTLS) Coraza WAF & Rate Limiter (OWASP Top 10 + DDoS Shield) 2. KUBERNETES CONTROL PLANE PODS (PORTS 4400 / 9090) VaakOps API Pod 1 (Active) • Fastify REST & WebSocket bus (Port 4400) • Node.js 24 LTS (--max-old-space-size=768, 1GB pod envelope) • AI synthesis router & OPA Rego validator VaakOps API Pod 2 (Active Replica) • GitOps drift reconciler loop & SCM hook receiver • Prometheus metrics exporter (Port 9090) • Active-Active multi-AZ clustering with leader election 3. EPHEMERAL SANDBOXED RUNNER GRID (ISOLATED NAMESPACES) OpenTofu / Terraform Runner Ephemeral job, memory capped at 2GiB State locks stored in PostgreSQL Kaniko / Buildah OCI Builder Rootless container image builds Cosign cryptographic key signing Multi-Cloud Deployer Pods AWS, Azure, GCP, OCI, K8s targets Dynamic STS & Workload Identity tokens 4. DISTRIBUTED STATE MESH, REGISTRY & METRIC STORES PostgreSQL 16 Multi-AZ Streaming replication, RPO = 0 Redis 7 State Cache & Pub/Sub Live deployment event distribution Cloud Storage / OCI Mirrors Multi-cloud image & artifact caching

Kubernetes Pod Sizing & Memory Governor

Control plane pods are allocated 1000m CPU and 1024MiB RAM with Node.js --max-old-space-size=768. The 85% memory ceiling leaves a 15% safety margin, triggering early circuit-breaking before Linux cgroup OOM kills.

Sandboxed Rootless Workers

Build jobs and infrastructure execution runs operate in unprivileged, rootless containers using Kaniko and OpenTofu. Isolated Linux namespaces and seccomp profiles prevent container breakouts or host network tampering.

Zero-Trust Network Mesh

Inter-service communication is secured via mTLS 1.3 with automated certificate rotation. Ports 4400 (REST API / WebSocket), 9090 (Prometheus scrape), and 5432 (PostgreSQL) are restricted via Kubernetes NetworkPolicies.

High Availability & Disaster Recovery

Active-Active control plane pods distributed across 3 Availability Zones. PostgreSQL streaming replication guarantees RPO = 0, while autonomous canary rollback delivers an RTO of under 5 seconds upon SLA breach.

OPA Policy as Code Guardrails

Every pull request and deployment manifest is validated against declarative Rego policies before runtime reconciliation.

rego — policies/security_guardrails.rego OPA v1 Compliant
package vaakops.admission

default allow = false

# Rule 1: Disallow privileged containers across all namespaces
deny[msg] {
  input.request.kind.kind == "Pod"
  container := input.request.object.spec.containers[_]
  container.securityContext.privileged == true
  msg := sprintf("Container '%v' violates zero-trust: privileged execution forbidden", [container.name])
}

# Rule 2: Enforce cryptographically signed container images
deny[msg] {
  input.request.kind.kind == "Pod"
  container := input.request.object.spec.containers[_]
  not startswith(container.image, "registry.vaagatech.com/")
  msg := sprintf("Container image '%v' must originate from certified enterprise registry", [container.image])
}

# Rule 3: Enforce strict CPU and memory resource quotas
deny[msg] {
  container := input.request.object.spec.containers[_]
  not container.resources.limits.memory
  msg := sprintf("Container '%v' missing mandatory memory limit threshold", [container.name])
}

# Admission is granted only when zero deny violations are raised
allow {
  count(deny) == 0
}

Autonomous Self-Healing Loops

Closed-loop automation eliminates middle-of-the-night pages through deterministic remediation playbooks.

1. Anomaly Detection

OpenTelemetry streams continuously calculate error budgets and latency P99 deviations against baseline SLA contracts.

2. Policy Evaluation

VaakOps matches anomalies against verified remediation playbooks to determine automated vs operator-approved intervention.

3. Atomic Execution

Operators execute automated remediation (canary rollback, pod drain, PVC auto-expansion, cert rotation) within 15 seconds.

4. Immutable Audit

Full timeline of the incident, trigger telemetry, and remediation action is recorded permanently in the audit log.