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11.2. Using the Knative CLI to list event sources and event source types

You can use the kn CLI to list and manage available event sources or event source types for use with Knative Eventing.

Currently, kn supports management of the following event source types:

API server source
Connects a sink to the Kubernetes API server by creating an APIServerSource object.
Ping source
Periodically sends ping events with a constant payload. A ping source can be used as a timer, and is created as a PingSource object.

You can list the available event source types in the terminal by using the following command: 

$ kn source list-types
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The default output for this command will look like: 

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
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It is also possible to list available event source types in YAML format: 

$ kn source list-types -o yaml
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You can list the available event sources in the terminal by entering the following command: 

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

$ kn source list --type PingSource
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Example output

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