Knative Katas

This repository contain exercises for Knative, a platform for building event-driven serverless applications.

Knative runs on top of Kubernetes and these exercises assume access to a Kubernetes cluster with Knative deployed.

Since network access to clusters vary, exercises use the following environment variables to define how to access the cluster network. Adjust these as necessary for your cluster.

export KATAS_DOMAIN=example.com
export KATAS_PROTOCOL=https
export KATAS_NAMESPACE=default

Some of the exercises make use of the kn and stern tools. You can either install these locally, or use the scripts in this repository for a container-based solution:

alias kn=scripts/kn.sh
alias stern=scripts/stern.sh

Exercises

Knative Serving

• Blue/green and Canary Deployments
• Header-based Revision Routing
• Configuring and Optimizing Autoscaling
• 🚧 WIP: Using gRPC

Knative Eventing

• Source to Sink
• Custom Sources
• Channels and Subscriptions
• Brokers and Triggers
• Flows - Parallels and Branches
• Flows - Sequences
• Delivery Errors - Dead Letter Sinks
• Delivery Errors in Flows
• 🚧 WIP: Kafka Source and Source
• 🚧 WIP: Kafka Broker
• 🚧 WIP: Kafka Partitions, Cloudevent partitionKey and Scalability

Third Party Integrations

• Third Party Sources
• Metrics with Prometheus and Grafana
• Event Tracing with Jaeger

Misc

• 🚧 WIP: Debugging Techniques

Event Delivery Models Overview

Links

• Knative reference
• Knative Runtime Contract
• Istio katas