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<title>Knative – Creating an event source</title>
<link>https://knative.dev/v0.23-docs/eventing/sources/creating-event-sources/</link>
<description>Recent content in Creating an event source on Knative</description>
<generator>Hugo -- gohugo.io</generator>
<atom:link href="https://knative.dev/v0.23-docs/eventing/sources/creating-event-sources/index.xml" rel="self" type="application/rss+xml" />
<item>
<title>V0.23-Docs: Writing an event source using Javascript</title>
<link>https://knative.dev/v0.23-docs/eventing/sources/creating-event-sources/writing-event-source-easy-way/</link>
<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
<guid>https://knative.dev/v0.23-docs/eventing/sources/creating-event-sources/writing-event-source-easy-way/</guid>
<description>
&lt;p&gt;This tutorial provides instructions to build an event source in Javascript and implement it with a ContainerSource or SinkBinding.&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Using a &lt;a href=&#34;../../containersource&#34;&gt;ContainerSource&lt;/a&gt; is a simple way to turn any dispatcher container into a Knative event source.&lt;/li&gt;
&lt;li&gt;Using &lt;a href=&#34;../../sinkbinding&#34;&gt;SinkBinding&lt;/a&gt; provides a framework for injecting environment variables into any Kubernetes resource that has a &lt;code&gt;spec.template&lt;/code&gt; and is &lt;a href=&#34;https://pkg.go.dev/knative.dev/pkg/apis/duck/v1#PodSpecable&#34;&gt;PodSpecable&lt;/a&gt;.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;ContainerSource and SinkBinding both work by injecting environment variables to an application. Injected environment variables at minimum contain the URL of a sink that will receive events.&lt;/p&gt;
&lt;h2 id=&#34;bootstrapping&#34;&gt;Bootstrapping&lt;/h2&gt;
&lt;p&gt;Create the project and add the dependencies:&lt;/p&gt;
&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-bash&#34; data-lang=&#34;bash&#34;&gt;npm init
npm install cloudevents-sdk@2.0.1 --save
&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;&lt;strong&gt;NOTE:&lt;/strong&gt; Due to this &lt;a href=&#34;https://github.com/cloudevents/sdk-javascript/issues/191&#34;&gt;bug&lt;/a&gt;, you must use version 2.0.1 of the Javascript SDK or newer.&lt;/p&gt;
&lt;h2 id=&#34;using-containersource&#34;&gt;Using ContainerSource&lt;/h2&gt;
&lt;p&gt;A ContainerSource creates a container for your event source image and manages this container.&lt;/p&gt;
&lt;p&gt;The sink URL to post the events will be made available to the application through the &lt;code&gt;K_SINK&lt;/code&gt; environment variable by the ContainerSource.&lt;/p&gt;
&lt;h3 id=&#34;example&#34;&gt;Example&lt;/h3&gt;
&lt;p&gt;The following example event source emits an event to the sink every 1000 milliseconds:&lt;/p&gt;
&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-javascript&#34; data-lang=&#34;javascript&#34;&gt;&lt;span style=&#34;color:#8f5902;font-style:italic&#34;&gt;// File - index.js
&lt;/span&gt;&lt;span style=&#34;color:#8f5902;font-style:italic&#34;&gt;&lt;/span&gt;
&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;const&lt;/span&gt; &lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;{&lt;/span&gt; &lt;span style=&#34;color:#000&#34;&gt;CloudEvent&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;,&lt;/span&gt; &lt;span style=&#34;color:#000&#34;&gt;HTTPEmitter&lt;/span&gt; &lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;}&lt;/span&gt; &lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;=&lt;/span&gt; &lt;span style=&#34;color:#000&#34;&gt;require&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;(&lt;/span&gt;&lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;cloudevents-sdk&amp;#34;&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;);&lt;/span&gt;
&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;let&lt;/span&gt; &lt;span style=&#34;color:#000&#34;&gt;sinkUrl&lt;/span&gt; &lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;=&lt;/span&gt; &lt;span style=&#34;color:#000&#34;&gt;process&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;.&lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;env&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;[&lt;/span&gt;&lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#39;K_SINK&amp;#39;&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;];&lt;/span&gt;
&lt;span style=&#34;color:#000&#34;&gt;console&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;.&lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;log&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;(&lt;/span&gt;&lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;Sink URL is &amp;#34;&lt;/span&gt; &lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;+&lt;/span&gt; &lt;span style=&#34;color:#000&#34;&gt;sinkUrl&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;);&lt;/span&gt;
&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;let&lt;/span&gt; &lt;span style=&#34;color:#000&#34;&gt;emitter&lt;/span&gt; &lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;=&lt;/span&gt; &lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;new&lt;/span&gt; &lt;span style=&#34;color:#000&#34;&gt;HTTPEmitter&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;({&lt;/span&gt;
&lt;span style=&#34;color:#000&#34;&gt;url&lt;/span&gt;&lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;:&lt;/span&gt; &lt;span style=&#34;color:#000&#34;&gt;sinkUrl&lt;/span&gt;
&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;});&lt;/span&gt;
&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;let&lt;/span&gt; &lt;span style=&#34;color:#000&#34;&gt;eventIndex&lt;/span&gt; &lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;=&lt;/span&gt; &lt;span style=&#34;color:#0000cf;font-weight:bold&#34;&gt;0&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;;&lt;/span&gt;
&lt;span style=&#34;color:#000&#34;&gt;setInterval&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;(&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;function&lt;/span&gt; &lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;()&lt;/span&gt; &lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;{&lt;/span&gt;
&lt;span style=&#34;color:#000&#34;&gt;console&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;.&lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;log&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;(&lt;/span&gt;&lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;Emitting event #&amp;#34;&lt;/span&gt; &lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;+&lt;/span&gt; &lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;++&lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;eventIndex&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;);&lt;/span&gt;
&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;let&lt;/span&gt; &lt;span style=&#34;color:#000&#34;&gt;myevent&lt;/span&gt; &lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;=&lt;/span&gt; &lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;new&lt;/span&gt; &lt;span style=&#34;color:#000&#34;&gt;CloudEvent&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;({&lt;/span&gt;
&lt;span style=&#34;color:#000&#34;&gt;source&lt;/span&gt;&lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;:&lt;/span&gt; &lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;urn:event:from:my-api/resource/123&amp;#34;&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;,&lt;/span&gt;
&lt;span style=&#34;color:#000&#34;&gt;type&lt;/span&gt;&lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;:&lt;/span&gt; &lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;your.event.source.type&amp;#34;&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;,&lt;/span&gt;
&lt;span style=&#34;color:#000&#34;&gt;id&lt;/span&gt;&lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;:&lt;/span&gt; &lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;your-event-id&amp;#34;&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;,&lt;/span&gt;
&lt;span style=&#34;color:#000&#34;&gt;dataContentType&lt;/span&gt;&lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;:&lt;/span&gt; &lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;application/json&amp;#34;&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;,&lt;/span&gt;
&lt;span style=&#34;color:#000&#34;&gt;data&lt;/span&gt;&lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;:&lt;/span&gt; &lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;{&lt;/span&gt;&lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;hello&amp;#34;&lt;/span&gt;&lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;:&lt;/span&gt; &lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;World &amp;#34;&lt;/span&gt; &lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;+&lt;/span&gt; &lt;span style=&#34;color:#000&#34;&gt;eventIndex&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;},&lt;/span&gt;
&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;});&lt;/span&gt;
&lt;span style=&#34;color:#8f5902;font-style:italic&#34;&gt;// Emit the event
&lt;/span&gt;&lt;span style=&#34;color:#8f5902;font-style:italic&#34;&gt;&lt;/span&gt; &lt;span style=&#34;color:#000&#34;&gt;emitter&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;.&lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;send&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;(&lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;myevent&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;)&lt;/span&gt;
&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;.&lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;then&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;(&lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;response&lt;/span&gt; &lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;=&amp;gt;&lt;/span&gt; &lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;{&lt;/span&gt;
&lt;span style=&#34;color:#8f5902;font-style:italic&#34;&gt;// Treat the response
&lt;/span&gt;&lt;span style=&#34;color:#8f5902;font-style:italic&#34;&gt;&lt;/span&gt; &lt;span style=&#34;color:#000&#34;&gt;console&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;.&lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;log&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;(&lt;/span&gt;&lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;Event posted successfully&amp;#34;&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;);&lt;/span&gt;
&lt;span style=&#34;color:#000&#34;&gt;console&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;.&lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;log&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;(&lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;response&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;.&lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;data&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;);&lt;/span&gt;
&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;})&lt;/span&gt;
&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;.&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;catch&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;(&lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;err&lt;/span&gt; &lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;=&amp;gt;&lt;/span&gt; &lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;{&lt;/span&gt;
&lt;span style=&#34;color:#8f5902;font-style:italic&#34;&gt;// Deal with errors
&lt;/span&gt;&lt;span style=&#34;color:#8f5902;font-style:italic&#34;&gt;&lt;/span&gt; &lt;span style=&#34;color:#000&#34;&gt;console&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;.&lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;log&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;(&lt;/span&gt;&lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;Error during event post&amp;#34;&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;);&lt;/span&gt;
&lt;span style=&#34;color:#000&#34;&gt;console&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;.&lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;error&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;(&lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;err&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;);&lt;/span&gt;
&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;});&lt;/span&gt;
&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;},&lt;/span&gt; &lt;span style=&#34;color:#0000cf;font-weight:bold&#34;&gt;1000&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;);&lt;/span&gt;
&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-dockerfile&#34; data-lang=&#34;dockerfile&#34;&gt;&lt;span style=&#34;color:#8f5902;font-style:italic&#34;&gt;# File - Dockerfile&lt;/span&gt;&lt;span style=&#34;color:#a40000&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#a40000&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#a40000&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;FROM&lt;/span&gt;&lt;span style=&#34;color:#4e9a06&#34;&gt; node:10&lt;/span&gt;&lt;span style=&#34;color:#a40000&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#a40000&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;WORKDIR&lt;/span&gt;&lt;span style=&#34;color:#4e9a06&#34;&gt; /usr/src/app&lt;/span&gt;&lt;span style=&#34;color:#a40000&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#a40000&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;COPY&lt;/span&gt; package*.json ./&lt;span style=&#34;color:#a40000&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#a40000&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;RUN&lt;/span&gt; npm install&lt;span style=&#34;color:#a40000&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#a40000&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;COPY&lt;/span&gt; . .&lt;span style=&#34;color:#a40000&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#a40000&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;EXPOSE&lt;/span&gt;&lt;span style=&#34;color:#4e9a06&#34;&gt; 8080&lt;/span&gt;&lt;span style=&#34;color:#a40000&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#a40000&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;CMD&lt;/span&gt; &lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;[&lt;/span&gt; &lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;node&amp;#34;&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;,&lt;/span&gt; &lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;index.js&amp;#34;&lt;/span&gt; &lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;]&lt;/span&gt;&lt;span style=&#34;color:#a40000&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#a40000&#34;&gt;
&lt;/span&gt;&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;The example code uses &lt;em&gt;Binary&lt;/em&gt; mode for CloudEvents. To employ structured code, change &lt;code&gt;let binding = new v1.BinaryHTTPEmitter(config);&lt;/code&gt; to &lt;code&gt;let binding = new v1.StructuredHTTPEmitter(config);&lt;/code&gt;.&lt;/p&gt;
&lt;p&gt;Binary mode is used in most cases because:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;It is faster in terms of serialization and deserialization.&lt;/li&gt;
&lt;li&gt;It works better with CloudEvent-aware proxies, such as Knative Channels, and can simply check the header instead of parsing the payload.&lt;/li&gt;
&lt;/ul&gt;
&lt;h3 id=&#34;procedure&#34;&gt;Procedure&lt;/h3&gt;
&lt;ol&gt;
&lt;li&gt;
&lt;p&gt;Build and push the image:&lt;/p&gt;
&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-bash&#34; data-lang=&#34;bash&#34;&gt;docker build . -t path/to/image/registry/node-knative-heartbeat-source:v1
docker push path/to/image/registry/node-knative-heartbeat-source:v1
&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/li&gt;
&lt;li&gt;
&lt;p&gt;Create the event display service which logs any CloudEvents posted to it:&lt;/p&gt;
&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;apiVersion&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;serving.knative.dev/v1&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;kind&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;Service&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;metadata&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;name&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;event-display&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;spec&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;template&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;spec&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;containers&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;- &lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;image&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;docker.io/aliok/event_display-864884f202126ec3150c5fcef437d90c@sha256:93cb4dcda8fee80a1f68662ae6bf20301471b046ede628f3c3f94f39752fbe08&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/li&gt;
&lt;li&gt;
&lt;p&gt;Create the ContainerSource object:&lt;/p&gt;
&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;apiVersion&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;sources.knative.dev/v1&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;kind&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;ContainerSource&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;metadata&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;name&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;test-heartbeats&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;spec&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;template&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;spec&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;containers&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;- &lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;image&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;path/to/image/registry/node-knative-heartbeat-source:v1&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;name&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;heartbeats&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;sink&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;ref&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;apiVersion&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;serving.knative.dev/v1&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;kind&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;Service&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;name&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;event-display&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/li&gt;
&lt;li&gt;
&lt;p&gt;Check the logs of the event display service. You will see a new message is pushed every second:&lt;/p&gt;
&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-bash&#34; data-lang=&#34;bash&#34;&gt;$ kubectl logs -l serving.knative.dev/service&lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;=&lt;/span&gt;event-display -c user-container
☁️ cloudevents.Event
Validation: valid
Context Attributes,
specversion: 1.0
type: your.event.source.type
source: urn:event:from:your-api/resource/123
id: your-event-id
datacontenttype: application/json
Data,
&lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;{&lt;/span&gt;
&lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;hello&amp;#34;&lt;/span&gt;: &lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;World 1&amp;#34;&lt;/span&gt;
&lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;}&lt;/span&gt;
&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/li&gt;
&lt;li&gt;
&lt;p&gt;Optional: If you are interested in seeing what is injected into the event source as a &lt;code&gt;K_SINK&lt;/code&gt;, you can check the logs:&lt;/p&gt;
&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-bash&#34; data-lang=&#34;bash&#34;&gt;$ kubectl logs test-heartbeats-deployment-7575c888c7-85w5t
Sink URL is http://event-display.default.svc.cluster.local
Emitting event &lt;span style=&#34;color:#8f5902;font-style:italic&#34;&gt;#1&lt;/span&gt;
Emitting event &lt;span style=&#34;color:#8f5902;font-style:italic&#34;&gt;#2&lt;/span&gt;
Event posted successfully
Event posted successfully
&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/li&gt;
&lt;/ol&gt;
&lt;h2 id=&#34;using-sinkbinding&#34;&gt;Using SinkBinding&lt;/h2&gt;
&lt;p&gt;SinkBinding does not create any containers. It injects the sink information to an already existing Kubernetes resources. This is a flexible approach as you can use any Kubernetes PodSpecable object as an event source, such as Deployment, Job, or Knative services.&lt;/p&gt;
&lt;h3 id=&#34;procedure-1&#34;&gt;Procedure&lt;/h3&gt;
&lt;ol&gt;
&lt;li&gt;
&lt;p&gt;Create an event display service:&lt;/p&gt;
&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;apiVersion&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;serving.knative.dev/v1&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;kind&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;Service&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;metadata&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;name&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;event-display&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;spec&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;template&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;spec&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;containers&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;- &lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;image&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;docker.io/aliok/event_display-864884f202126ec3150c5fcef437d90c@sha256:93cb4dcda8fee80a1f68662ae6bf20301471b046ede628f3c3f94f39752fbe08&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/li&gt;
&lt;li&gt;
&lt;p&gt;Create a Kubernetes deployment that runs the event source:&lt;/p&gt;
&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;apiVersion&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;apps/v1&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;kind&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;Deployment&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;metadata&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;name&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;node-heartbeats-deployment&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;labels&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;app&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;node-heartbeats&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;spec&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;replicas&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#0000cf;font-weight:bold&#34;&gt;2&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;selector&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;matchLabels&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;app&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;node-heartbeats&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;template&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;metadata&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;labels&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;app&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;node-heartbeats&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;spec&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;containers&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;- &lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;name&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;node-heartbeats&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;image&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;path/to/image/registry/node-knative-heartbeat-source:v1&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;ports&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;- &lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;containerPort&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#0000cf;font-weight:bold&#34;&gt;8080&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/li&gt;
&lt;li&gt;
&lt;p&gt;Because the SinkBinding has not yet been created, you will see an error message, because the &lt;code&gt;K_SINK&lt;/code&gt; environment variable is not yet injected:&lt;/p&gt;
&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-bash&#34; data-lang=&#34;bash&#34;&gt;$ kubectl logs node-heartbeats-deployment-9ffbb644b-llkzk
Sink URL is undefined
Emitting event &lt;span style=&#34;color:#8f5902;font-style:italic&#34;&gt;#1&lt;/span&gt;
Error during event post
TypeError &lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;[&lt;/span&gt;ERR_INVALID_ARG_TYPE&lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;]&lt;/span&gt;: The &lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;url&amp;#34;&lt;/span&gt; argument must be of &lt;span style=&#34;color:#204a87&#34;&gt;type&lt;/span&gt; string. Received &lt;span style=&#34;color:#204a87&#34;&gt;type&lt;/span&gt; undefined
&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/li&gt;
&lt;li&gt;
&lt;p&gt;Create the SinkBinding object:&lt;/p&gt;
&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;apiVersion&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;sources.knative.dev/v1&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;kind&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;SinkBinding&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;metadata&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;name&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;bind-node-heartbeat&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;&lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;spec&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;subject&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;apiVersion&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;apps/v1&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;kind&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;Deployment&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;selector&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;matchLabels&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;app&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;node-heartbeats&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;sink&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;ref&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;apiVersion&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;serving.knative.dev/v1&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;kind&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;Service&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#204a87;font-weight:bold&#34;&gt;name&lt;/span&gt;&lt;span style=&#34;color:#000;font-weight:bold&#34;&gt;:&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt; &lt;/span&gt;&lt;span style=&#34;color:#000&#34;&gt;event-display&lt;/span&gt;&lt;span style=&#34;color:#f8f8f8;text-decoration:underline&#34;&gt;
&lt;/span&gt;&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;You will see the pods are recreated and this time the &lt;code&gt;K_SINK&lt;/code&gt; environment variable is injected.&lt;/p&gt;
&lt;p&gt;Also note that since the &lt;code&gt;replicas&lt;/code&gt; is set to 2, there will be 2 pods that are posting events to the sink.&lt;/p&gt;
&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-bash&#34; data-lang=&#34;bash&#34;&gt;$ kubectl logs event-display-dpplv-deployment-67c9949cf9-bvjvk -c user-container
☁️ cloudevents.Event
Validation: valid
Context Attributes,
specversion: 1.0
type: your.event.source.type
source: urn:event:from:your-api/resource/123
id: your-event-id
datacontenttype: application/json
Data,
&lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;{&lt;/span&gt;
&lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;hello&amp;#34;&lt;/span&gt;: &lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;World 1&amp;#34;&lt;/span&gt;
&lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;}&lt;/span&gt;
☁️ cloudevents.Event
Validation: valid
Context Attributes,
specversion: 1.0
type: your.event.source.type
source: urn:event:from:your-api/resource/123
id: your-event-id
datacontenttype: application/json
Data,
&lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;{&lt;/span&gt;
&lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;hello&amp;#34;&lt;/span&gt;: &lt;span style=&#34;color:#4e9a06&#34;&gt;&amp;#34;World 1&amp;#34;&lt;/span&gt;
&lt;span style=&#34;color:#ce5c00;font-weight:bold&#34;&gt;}&lt;/span&gt;
&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/li&gt;
&lt;/ol&gt;
</description>
</item>
<item>
<title>V0.23-Docs: Creating an event source by using the sample event source</title>
<link>https://knative.dev/v0.23-docs/eventing/sources/creating-event-sources/writing-event-source/</link>
<pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
<guid>https://knative.dev/v0.23-docs/eventing/sources/creating-event-sources/writing-event-source/</guid>
<description>
&lt;p&gt;This guide explains how to create your own event source for Knative
Eventing by using a &lt;a href=&#34;https://github.com/knative-sandbox/sample-source&#34;&gt;sample repository&lt;/a&gt;, and explains the key concepts behind each required component. Documentation for the default &lt;a href=&#34;../../sources/&#34;&gt;Knative event sources&lt;/a&gt; can be used as an additional reference.&lt;/p&gt;
&lt;p&gt;After completing the provided tutorial, you will have created a basic event source controller and a receive adapter. Events can be viewed by using the &lt;code&gt;event_display&lt;/code&gt; Knative service.&lt;/p&gt;
&lt;!--TODO: Provide links to docs about what the event source controller and receiver adapter are--&gt;
&lt;!-- Is Go required? Is this for all Knative development or just event source creation?--&gt;
&lt;h2 id=&#34;prerequisites&#34;&gt;Prerequisites&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;You are familiar with Kubernetes and Go development.&lt;/li&gt;
&lt;li&gt;You have installed Git.&lt;/li&gt;
&lt;li&gt;You have installed Go.&lt;/li&gt;
&lt;li&gt;Clone the &lt;a href=&#34;https://github.com/knative-sandbox/sample-source&#34;&gt;sample source&lt;/a&gt;. &lt;!--optional?--&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;!-- add links, versions if required--&gt;
&lt;!---TODO: decide...Maybe don&#39;t list these if they&#39;re optional, unless they&#39;re called out in a procedure--&gt;
&lt;p&gt;Optional:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Install the &lt;a href=&#34;https://github.com/google/ko/&#34;&gt;ko&lt;/a&gt; CLI tool.&lt;/li&gt;
&lt;li&gt;Install the &lt;a href=&#34;https://kubernetes.io/docs/tasks/tools/install-kubectl/&#34;&gt;kubectl&lt;/a&gt; CLI tool.&lt;/li&gt;
&lt;li&gt;Set up &lt;a href=&#34;https://github.com/kubernetes/minikube&#34;&gt;minikube&lt;/a&gt;.&lt;/li&gt;
&lt;/ul&gt;
&lt;h2 id=&#34;steps&#34;&gt;Steps&lt;/h2&gt;
&lt;ol&gt;
&lt;li&gt;&lt;a href=&#34;./01-theory&#34;&gt;Separation of Concerns&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a href=&#34;./02-lifecycle-and-types&#34;&gt;API Definition&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a href=&#34;./03-controller&#34;&gt;Controller&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a href=&#34;./04-reconciler&#34;&gt;Reconciler&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a href=&#34;./05-receive-adapter&#34;&gt;Receive Adapter&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a href=&#34;./06-yaml&#34;&gt;Example YAML&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a href=&#34;./07-knative-sandbox&#34;&gt;Moving the event source to the &lt;code&gt;knative-sandbox&lt;/code&gt; organization&lt;/a&gt;&lt;/li&gt;
&lt;/ol&gt;
</description>
</item>
</channel>
</rss>
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