- Documentation
- Red Hat OpenShift Serverless
- Eventing
- Event sources
- Event sources overview history bug_report picture_as_pdf
- About OpenShift Serverless
- Installing OpenShift Serverless
- Preparing to install OpenShift Serverless
- Installing the OpenShift Serverless Operator
- Installing the Knative CLI
- Installing Knative Serving
- Installing Knative Eventing
- Configuring Knative for Apache Kafka
- Configuring kube-rbac-proxy resources for Knative for Apache Kafka
- Configuring OpenShift Serverless Functions
- Installing the OpenShift Serverless Logic Operator
- Installing the OpenShift Serverless Logic Knative Workflow plugin
- OpenShift Serverless upgrades
- Functions
- Getting started with functions
- Creating functions
- Running functions locally
- Deploying functions
- Building functions
- Listing existing functions
- Invoking functions
- Deleting functions
- Building and deploying functions on the cluster
- Connecting an event source to a function
- Subscribing functions to CloudEvents
- Functions development reference guide
- Configuring functions
- Serving
- Getting started with Knative Serving
- Scalability and Performance
- Autoscaling
- Configuring OpenShift Serverless applications
- Debugging OpenShift Serverless applications
- Kourier and Istio ingresses
- Serving transport encryption
- Traffic splitting
- External and Ingress routing
- HTTP configuration
- Configuring access to Knative services
- Configuring kube-rbac-proxy resources for Serving
- Configuring burst and QPS for net-kourier
- Configuring custom domains for Knative services
- High availability configuration for Knative Serving
- Tuning serving configuration
- Configuring Queue Proxy resources
- Eventing
- Knative Eventing
- Event sources
- Event sinks
- Brokers
- Triggers
- Channels
- Subscriptions
- Event delivery
- Event discovery
- Tuning eventing configuration
- Configuring TLS encryption in Eventing
- Configuring kube-rbac-proxy resources for Eventing
- Using ContainerSource with OpenShift Service Mesh
- Using a sink binding with OpenShift Service Mesh
- Serverless Logic
- Knative CLI
- Observability
- Integrations
- Integrating Service Mesh with OpenShift Serverless
- Using Service Mesh to isolate network traffic with OpenShift Serverless
- Integrating OpenShift Serverless with the cost management service
- Integrating OpenShift Serverless with OpenShift Pipelines
- Using NVIDIA GPU resources with serverless applications
- Removing OpenShift Serverless
Event sources
A Knative event source can be any Kubernetes object that generates or imports cloud events, and relays those events to another endpoint, known as a sink. Sourcing events is critical to developing a distributed system that reacts to events.
You can create and manage Knative event sources by using the Developer perspective in the OpenShift Container Platform web console, the Knative (kn) CLI, or by applying YAML files.
Currently, OpenShift Serverless supports the following event source types:
- API server source
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Brings Kubernetes API server events into Knative. The API server source sends a new event each time a Kubernetes resource is created, updated or deleted.
- Ping source
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Produces events with a fixed payload on a specified cron schedule.
- Kafka event source
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Connects an Apache Kafka cluster to a sink as an event source.
You can also create a custom event source.