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| <h1>Minikube & Ozone</h1> |
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| <li>Working minikube setup</li> |
| <li>kubectl</li> |
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| <p><code>kubernetes/examples</code> folder of the ozone distribution contains kubernetes deployment resource files for multiple use cases. By default the kubernetes resource files are configured to use <code>apache/ozone</code> image from the dockerhub.</p> |
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| <p>To deploy it to minikube use the minikube configuration set:</p> |
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| <pre><code>cd kubernetes/examples/minikube |
| kubectl apply -f . |
| </code></pre> |
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| <p>And you can check the results with</p> |
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| <pre><code>kubectl get pod |
| </code></pre> |
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| <p>Note: the kubernetes/examples/minikube resource set is optimized for minikube usage:</p> |
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| <ul> |
| <li>You can have multiple datanodes even if you have only one host (in a real production cluster usually you need one datanode per physical host)</li> |
| <li>The services are published with node port</li> |
| </ul> |
| |
| <h2 id="access-the-services">Access the services</h2> |
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| <p>Now you can access any of the services. For each web endpoint an additional NodeType service is defined in the minikube k8s resource set. NodeType services are available via a generated port of any of the host nodes:</p> |
| <div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-bash" data-lang="bash">kubectl get svc |
| NAME TYPE CLUSTER-IP EXTERNAL-IP PORT<span style="color:#f92672">(</span>S<span style="color:#f92672">)</span> AGE |
| datanode ClusterIP None <none> <none> 27s |
| kubernetes ClusterIP <span style="color:#ae81ff">10</span>.96.0.1 <none> <span style="color:#ae81ff">443</span>/TCP 118m |
| om ClusterIP None <none> <span style="color:#ae81ff">9874</span>/TCP 27s |
| om-public NodePort <span style="color:#ae81ff">10</span>.108.48.148 <none> <span style="color:#ae81ff">9874</span>:32649/TCP 27s |
| s3g ClusterIP None <none> <span style="color:#ae81ff">9878</span>/TCP 27s |
| s3g-public NodePort <span style="color:#ae81ff">10</span>.97.133.137 <none> <span style="color:#ae81ff">9878</span>:31880/TCP 27s |
| scm ClusterIP None <none> <span style="color:#ae81ff">9876</span>/TCP 27s |
| scm-public NodePort <span style="color:#ae81ff">10</span>.105.231.28 <none> <span style="color:#ae81ff">9876</span>:32171/TCP 27s</code></pre></div> |
| <p>Minikube contains a convenience command to access any of the NodePort services:</p> |
| |
| <pre><code>minikube service s3g-public |
| Opening kubernetes service default/s3g-public in default browser... |
| </code></pre> |
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