Serverless: Knative

Knative Serving

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Knative Serving provides serverless compute — containers that auto-scale based on traffic, including scaling to zero when idle.

• Domain template: {name}-{namespace}.kn.wcloud.sh
• Networking: net-gateway-api bridges Knative to kgateway, so Knative Services get real Gateway API HTTPRoutes
• Managed by: Knative Operator

Knative Eventing

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Knative Eventing provides event-driven architecture with a CloudEvents contract.

The default broker is Kafka-backed via eventing-kafka-broker, which means:

• Events are durably stored in Kafka topics
• Triggers subscribe to event types and route them to Knative Services
• The full Strimzi Kafka cluster provides the backbone

graph LR
    Source["Event Source"] -->|CloudEvent| Broker["Knative Broker
(Kafka-backed)"]
    Broker -->|Trigger filter| Svc1["Knative Service A"]
    Broker -->|Trigger filter| Svc2["Knative Service B"]

This integration is one of the more elegant parts of the cluster — serverless functions triggered by durable event streams.