SAP BTP Kyma & Serverless Extension Architect

⚙️ Extension Specification

Extension Pattern & Workload

Event-Driven Serverless Function

Triggered by SAP Event Mesh CloudEvents (e.g. BusinessPartner, SalesOrder).

REST / OData API Function (Node.js 20)

Lightweight HTTP microservice with Istio APIRule & JWT auth.

Python AI & Document Processor (FastAPI)

Heavy compute, RAG embeddings & document parsing sidecar.

Containerized Go/Node Microservice (Deployment)

High-throughput microservice with HPA auto-scaling and health checks.

Workload Name (Kubernetes Service)

DNS-compliant identifier used in Kyma manifests.

Kyma Namespace

Runtime Engine

CloudEvent Trigger Type (SAP Event Mesh)

CloudEvents 1.0 specification routed through SAP Event Mesh.

Istio APIRule Gateway Security

SAP BTP Service Bindings (BTP Operator)

Resource Allocation Profile

# Generating Kyma Workload Manifest...

# Generating APIRule Manifest...

# Generating Kyma Eventing Subscription...

# Generating BTP Service Operator Manifests...

🛡️ Clean Core & Kyma Architecture Assessment

Clean Core Compliant

Decoupled side-by-side extension executing in Kyma runtime. Zero core modification, resilient against S/4HANA upgrades, zero ABAP runtime lock-in.

Event-Driven Asynchronous Decoupling

Consumes CloudEvents 1.0 from SAP Event Mesh. Eliminates synchronous HTTP bottlenecks and protects S/4HANA work processes from long-running latencies.

Zero-Trust Identity with APIRule

Istio Envoy proxy enforces JWT tokens minted by SAP Cloud Identity Services. Backend services require zero manual OAuth token validation code.

BTP Service Operator Binding

Kubernetes-native secret injection conforms to the Service Binding Specification (servicebinding.io). Dynamic credential rotation without Pod downtime.

⚙️ Extension Specification

🛡️ Clean Core & Kyma Architecture Assessment

Master Modern SAP Clean Core & BTP Architecture