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Enterprise Agentic Architecture

AWS · Azure · GCP — high-throughput multi-cloud design · tap any node to explore

Orchestration AWS Azure GCP Fabric Security
Client & ingress
Web / Mobile
Browser · iOS · Android
Client
API Consumers
REST · gRPC · WebSocket
Client
Event Producers
Kafka · webhooks · streams
Client
IoT / Edge
MQTT · embedded agents
Client
Global gateway
Global API Gateway + WAF + Rate Limiter
Cloudflare / AWS API GW / Azure API Mgmt / GCP Apigee
Shared plane
Agent orchestration plane (shared)
Orchestrator
LangGraph · Bedrock Agents
Orchestration
Planner Agent
Task decomposition · CoT
Orchestration
Executor Agents
Tool calls · RAG · APIs
Orchestration
Memory + Context
Redis · Cosmos · Spanner
Orchestration
Cloud-native inference + compute
AWS
Bedrock · Lambda · Kinesis
OpenSearch · Aurora · ECS
AWS
Azure
OpenAI · Event Hubs · AKS
AI Search · Cosmos · Functions
Azure
GCP
Vertex AI · Pub/Sub · GKE
Vertex Search · Spanner · Run
GCP
Cross-cloud fabric
Cross-cloud fabric
HashiCorp Vault · Kafka MirrorMaker · Istio mesh · mTLS · OIDC federation
Fabric
Security + observability plane
Security + Observability Plane
SIEM · OpenTelemetry · Prometheus + Grafana · Cost sentinel · PII redaction
Security
Ingress
API Gateway (HTTP API) + CloudFront + WAF + Shield Advanced
10M+ RPS · edge caching · DDoS protection · JWT authoriser
AWS
Event backbone
Kinesis Data Streams — enhanced fanout
Ordered · durable · 1 MB/s per shard · auto-scale shards
AWS
Compute
Lambda (Provisioned)
Sync agent tools · 128ms cold start eliminated
AWS
ECS Fargate
Long-running agents · SPOT + On-Demand
AWS
Step Functions Express
100k exec/sec · workflow orchestration
AWS
Inference
Amazon Bedrock — model router
Claude 3.5 Sonnet · Titan Embeddings · Cohere · Mistral · Llama 3 · on-demand + provisioned throughput · model routing by latency SLA
AWS
Storage
OpenSearch Serverless
Vector RAG · k-NN + HNSW index
AWS
ElastiCache (Redis)
Agent session memory · sub-ms reads
AWS
Aurora Serverless v2
OLTP + audit log · auto-scales to 256 ACUs
AWS
Security + observability
AWS Security + Observability
GuardDuty · Macie · CloudTrail · X-Ray · CloudWatch Evidently · Cost Explorer · SCPs
Security
Ingress
Azure API Management + Front Door + DDoS Protection
Global load balancing · TLS offload · OAuth2 / managed identity · subscriptions and quotas
Azure
Event backbone
Azure Event Hubs (Kafka-compatible)
10M events/sec · 32 partitions · capture to ADLS · Schema Registry
Azure
Compute
Azure Functions (Premium)
Event-triggered agent tools · pre-warmed
Azure
AKS + KEDA
Long-running agents · event-driven pod scaling
Azure
Durable Functions
Fan-out / fan-in · human-in-the-loop
Azure
Inference
Azure OpenAI Service — model gateway
GPT-4o · GPT-4 Turbo · text-embedding-3-large · PTU (provisioned throughput units) · APIM semantic caching · private endpoint
Azure
Storage
Azure AI Search
Hybrid vector + BM25 · semantic re-ranker
Azure
Cosmos DB (multi-write)
Agent state + tool results · 99.999% SLA
Azure
Azure Cache (Redis)
Session + semantic cache · active geo-replication
Azure
Security + observability
Azure Security + Observability
Defender for Cloud · Sentinel SIEM · Monitor + App Insights · Managed Identity · PIM · Purview DLP
Security
Ingress
Apigee + Cloud Armor + reCAPTCHA Enterprise
API key / OAuth2 / Workload Identity · adaptive DDoS · geo-blocking · quota plans
GCP
Event backbone
Cloud Pub/Sub (exactly-once)
Global · infinite scale · push + pull delivery · ordering keys per entity
GCP
Compute
Cloud Run (min-instances)
Stateless executors · 0 cold start
GCP
GKE Autopilot
Stateful agent pods · managed nodes
GCP
Cloud Workflows + Tasks
DAG orchestration · HTTP step callbacks
GCP
Inference
Vertex AI — model platform
Gemini 1.5 Pro · Gemini Flash · text-embedding-004 · Model Garden · Reasoning Engine (managed agent runtime) · Grounding with Google Search
GCP
Storage
Vertex AI Search
RAG + semantic search · grounding citations
GCP
Spanner (globally dist.)
Agent state + audit · strong consistency · 10k TPS
GCP
Memorystore (Redis)
Agent memory cache · HA + read replicas
GCP
Security + observability
GCP Security + Observability
Security Command Center · Chronicle SIEM · Cloud Trace · Cloud Profiler · VPC Service Controls · DLP API
Security
Cloud endpoints
AWS VPC
us-east-1 · ap-southeast-2
AWS
Azure VNet
australiaeast · eastus2
Azure
GCP VPC
australia-southeast1 · us-central1
GCP
Private network layer
Private dedicated circuits
Megaport / Equinix Fabric · AWS Direct Connect · Azure ExpressRoute · Google Cloud Interconnect · BGP routing · SD-WAN overlay — no agent traffic on public internet
Fabric
Security fabric
Identity federation
OIDC workload identity · no long-lived keys · Okta / Entra ID as IdP
Fabric
Service mesh (Istio)
mTLS everywhere · SPIFFE/SVID · circuit breaker · traffic policy
Fabric
Secrets (HashiCorp Vault)
Dynamic secrets · auto-rotate every 24h · Enterprise namespaces
Fabric
Event replication
Event replication bus — Kafka MirrorMaker 2
Active/active replication across all clouds · Confluent Cloud option · topic-level failover · schema registry sync · consumer group offset translation
Fabric
Unified observability
OpenTelemetry + Grafana Cloud
All agents instrumented via OTel SDK · Prometheus federation · distributed tracing across cloud boundaries · SLO burn alerts · Cost sentinel (Apptio / CloudHealth)
Security
Resilience
Resilience + chaos engineering
Active/active multi-cloud · Gremlin chaos experiments · cross-cloud circuit breaker · RTO < 2 min · RPO = 0 via sync replication
Security

Component details

Select a node from the diagram

Tap any component in the diagram to see a detailed breakdown and design rationale.

Architecture overview

This architecture runs agent workloads across AWS, Azure, and GCP simultaneously, with a shared orchestration plane sitting above all three clouds. Rather than siloed stacks, agents can route to whichever cloud has available capacity or the right model for the task.

AWS layer

Kinesis enhanced fanout decouples ingestion from inference at high throughput. Lambda (provisioned concurrency) handles sub-second synchronous tool calls with cold starts eliminated. ECS Fargate runs stateful, long-context agents. Step Functions Express Workflows orchestrate multi-step pipelines at up to 100k executions per second. Bedrock routes between Claude, Titan, Cohere, and Llama based on latency SLA and task type — expensive models only get invoked when needed.

Azure layer

Event Hubs' Kafka-compatible interface lets agents reuse existing Kafka producers without rewrite. KEDA scales AKS pods directly from queue depth rather than CPU, which is essential for bursty agent workloads that are idle most of the time. Durable Functions orchestrate fan-out / fan-in patterns with native human-in-the-loop checkpoints — no custom state machines needed. Azure OpenAI PTUs eliminate the per-minute token quota ceiling, making sustained high-throughput inference predictable and cost-stable.

GCP layer

Pub/Sub ordering keys guarantee per-entity agent task ordering at unlimited scale. Vertex Reasoning Engine provides a fully managed agent runtime so you do not need to operate orchestration infrastructure yourself. Gemini Flash is the correct model for high-frequency, sub-200ms tool calls. Dataflow (Apache Beam) handles real-time stream enrichment before tasks reach the agent layer. Spanner gives globally consistent agent state across regions without the complexity of custom replication logic.

Cross-cloud fabric

Private dedicated circuits via Megaport or Equinix mean no agent-to-agent or inter-service traffic touches the public internet. OIDC workload identity federation means no static API keys cross cloud boundaries ever. Istio service mesh with SPIFFE / SVID provides mTLS on every connection. Kafka MirrorMaker 2 active/active replication makes the orchestration plane cloud-agnostic. All telemetry is unified via OpenTelemetry before landing in Grafana Cloud, giving a single pane of glass for SLO tracking regardless of which cloud is handling a request.

High-throughput design principles

The architecture is async-first at every tier. Synchronous paths are reserved only for tool calls with hard latency SLAs. Inference is always routed by task type. Agent session memory lives in a Redis-tier cache, never the origin store on hot paths. All three clouds provide horizontal autoscaling at the compute layer. The multi-cloud fabric gives a genuine cross-cloud autoscaling surface, not three independent siloed stacks.