knative

Knative Serving enables deploying serverless apps on Kubernetes with automatic scaling, including scale-to-zero when idle. Deploy services using Knative Service resources and manifests; Knative automatically scales replicas based on traffic demand and terminates pods when no requests arrive.

Knative Eventing supports event-driven architectures via Brokers, Triggers, and event sources that route CloudEvents. Configure PingSource, KafkaSource, or other sources to emit events to Brokers; Triggers filter and deliver events to subscriber services using standard CloudEvents protocol.

Knative supports Kourier, Istio, and Contour as ingress controllers for networking and traffic management. Choose your ingress layer during installation; Knative Routes then manage traffic splitting for blue-green, canary, and gradual rollout deployment strategies.

Knative requires kubectl access, familiarity with Kubernetes, and understanding of Knative CRDs (Service, Revision, Route, Broker, Trigger). You'll write YAML manifests and manage Knative resources; the func CLI simplifies function deployment but core operations demand Kubernetes knowledge.

Knative Routes support advanced traffic management through traffic splitting across Revisions. Configure percentage-based traffic distribution in Route specs to implement canary, blue-green, or gradual rollout patterns; Knative handles the underlying networking configuration automatically.

Knative Eventing integrates event sources including PingSource for scheduled events and KafkaSource for Kafka topics. Event sources emit CloudEvents to Brokers; Triggers subscribe to and filter these events, enabling reactive microservices and message-driven architectures.