Listing event sources and event source types - Event sources | Serverless

Listing available event source types by using the Knative CLI
Viewing available event source types within the Developer perspective
Listing available event sources using the Knative CLI
- Listing event sources of a specific type only

You can use the kn CLI or the Developer perspective in the OpenShift Container Platform web console to list and manage available event sources or event source types.

Currently, OpenShift Serverless supports the following event source types:

API server source: Connects a sink to the Kubernetes API server.
Ping source: Periodically sends ping events with a constant payload. It can be used as a timer.
Sink binding: Allows you to connect core Kubernetes resource objects, such as Deployment, Job, or StatefulSet objects, with a sink.
Apache Kafka source: Connect a Kafka cluster to a sink as an event source.

Listing available event source types by using the Knative CLI

Procedure

List the available event source types in the terminal:

$ kn source list-types

Example output

TYPE              NAME                                            DESCRIPTION
ApiServerSource   apiserversources.sources.knative.dev            Watch and send Kubernetes API events to a sink
PingSource        pingsources.sources.knative.dev                 Periodically send ping events to a sink
SinkBinding       sinkbindings.sources.knative.dev                Binding for connecting a PodSpecable to a sink

Optional: You can also list the available event source types in YAML format:
```
$ kn source list-types -o yaml
```

Viewing available event source types within the Developer perspective

You can use the web console to view available event source types.

Additional event source types can be added by cluster administrators by installing Operators on OpenShift Container Platform.

Procedure

Access the Developer perspective.
Click +Add.
Click Event source.

Listing available event sources using the Knative CLI

List the available event sources:

$ kn source list

Example output

NAME   TYPE              RESOURCE                               SINK         READY
a1     ApiServerSource   apiserversources.sources.knative.dev   ksvc:eshow2   True
b1     SinkBinding       sinkbindings.sources.knative.dev       ksvc:eshow3   False
p1     PingSource        pingsources.sources.knative.dev        ksvc:eshow1   True

Listing event sources of a specific type only

You can list event sources of a specific type only, by using the --type flag.

List the available ping sources:

$ kn source list --type PingSource

Example output

NAME   TYPE              RESOURCE                               SINK         READY
p1     PingSource        pingsources.sources.knative.dev        ksvc:eshow1   True