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41 lines
1.3 KiB
Plaintext
41 lines
1.3 KiB
Plaintext
:_content-type: ASSEMBLY
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[id="serverless-pingsource"]
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= Creating a ping source
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:context: serverless-pingsource
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include::_attributes/common-attributes.adoc[]
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toc::[]
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A ping source is used to periodically send ping events with a constant payload to an event consumer.
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A ping source can be used to schedule sending events, similar to a timer.
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.Example ping source YAML
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[source,yaml]
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----
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apiVersion: sources.knative.dev/v1alpha2
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kind: PingSource
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metadata:
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name: test-ping-source
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spec:
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schedule: "*/2 * * * *" <1>
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jsonData: '{"message": "Hello world!"}' <2>
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sink: <3>
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ref:
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apiVersion: serving.knative.dev/v1
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kind: Service
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name: event-display
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----
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<1> The schedule of the event specified using https://kubernetes.io/docs/tasks/job/automated-tasks-with-cron-jobs/#schedule[CRON expression].
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<2> The event message body expressed as a JSON encoded data string.
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<3> These are the details of the event consumer. In this example, we are using a Knative service named `event-display`.
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// dev console
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include::modules/serverless-pingsource-odc.adoc[leveloffset=+1]
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// kn commands
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include::modules/serverless-pingsource-kn.adoc[leveloffset=+1]
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include::modules/specifying-sink-flag-kn.adoc[leveloffset=+2]
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// YAML
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include::modules/serverless-pingsource-yaml.adoc[leveloffset=+1]
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