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3engines_doc/site/kubernetes/Enable-Kubeapps-app-launcher-on-3Engines-Cloud-Magnum-Kubernetes-cluster.html.html
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3Engines Cloud </span> </a> </li> <li class=md-nav__item> <a href=../cloud/VM-created-with-option-Create-New-Volume-Yes-on-3Engines-Cloud.html.html class=md-nav__link> <span class=md-ellipsis> VM created with option Create New Volume Yes on 3Engines Cloud </span> </a> </li> <li class=md-nav__item> <a href=../cloud/What-is-an-OpenStack-domain-on-3Engines-Cloud.html.html class=md-nav__link> <span class=md-ellipsis> What is an OpenStack domain on 3Engines Cloud </span> </a> </li> <li class=md-nav__item> <a href=../cloud/What-is-an-OpenStack-project-on-3Engines-Cloud.html.html class=md-nav__link> <span class=md-ellipsis> What is an OpenStack project on 3Engines Cloud </span> </a> </li> <li class=md-nav__item> <a href=../cloud/How-to-create-a-Linux-VM-and-access-it-from-Windows-desktop-on-3Engines-Cloud.html.html class=md-nav__link> <span class=md-ellipsis> How to create a Linux VM and access it from Windows desktop on 3Engines Cloud </span> </a> </li> <li class=md-nav__item> <a 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3Engines Cloud </span> </a> </li> <li class=md-nav__item> <a href=../cloud/How-to-start-a-VM-from-instance-snapshot-using-Horizon-dashboard-on-3Engines-Cloud.html.html class=md-nav__link> <span class=md-ellipsis> How to start a VM from instance snapshot using Horizon dashboard on 3Engines Cloud </span> </a> </li> <li class=md-nav__item> <a href=../cloud/How-to-create-a-VM-using-the-OpenStack-CLI-client-on-3Engines-Cloud-cloud.html.html class=md-nav__link> <span class=md-ellipsis> How to create a VM using the OpenStack CLI client on 3Engines Cloud cloud </span> </a> </li> <li class=md-nav__item> <a href=../cloud/OpenStack-user-roles-on-3Engines-Cloud.html.html class=md-nav__link> <span class=md-ellipsis> OpenStack User Roles on 3Engines Cloud </span> </a> </li> <li class=md-nav__item> <a href=../cloud/Resizing-a-virtual-machine-using-OpenStack-Horizon-on-3Engines-Cloud.html.html class=md-nav__link> <span class=md-ellipsis> Resizing a virtual machine using OpenStack Horizon on 3Engines Cloud </span> </a> </li> <li class=md-nav__item> <a href=../cloud/Block-storage-and-object-storage-performance-limits-on-3Engines-Cloud.html.html class=md-nav__link> <span class=md-ellipsis> Block storage and object storage performance limits on 3Engines Cloud </span> </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type=checkbox id=__nav_3> <label class=md-nav__link for=__nav_3 id=__nav_3_label tabindex=0> <span class=md-ellipsis> Data Volume </span> <span class="md-nav__icon md-icon"></span> </label> <nav class=md-nav data-md-level=1 aria-labelledby=__nav_3_label aria-expanded=false> <label class=md-nav__title for=__nav_3> <span class="md-nav__icon md-icon"></span> Data Volume </label> <ul class=md-nav__list data-md-scrollfix> <li class=md-nav__item> <a href=../datavolume/datavolume.html.html class=md-nav__link> <span class=md-ellipsis> Overview </span> </a> </li> <li class=md-nav__item> <a 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</nav> </div> </div> </div> <div class="md-sidebar md-sidebar--secondary" data-md-component=sidebar data-md-type=toc> <div class=md-sidebar__scrollwrap> <div class=md-sidebar__inner> <nav class="md-nav md-nav--secondary" aria-label="On this page"> <label class=md-nav__title for=__toc> <span class="md-nav__icon md-icon"></span> On this page </label> <ul class=md-nav__list data-md-component=toc data-md-scrollfix> <li class=md-nav__item> <a href=#what-we-are-going-to-cover class=md-nav__link> <span class=md-ellipsis> What We Are Going To Cover🔗 </span> </a> </li> <li class=md-nav__item> <a href=#prerequisites class=md-nav__link> <span class=md-ellipsis> Prerequisites🔗 </span> </a> </li> <li class=md-nav__item> <a href=#background class=md-nav__link> <span class=md-ellipsis> Background🔗 </span> </a> </li> <li class=md-nav__item> <a href=#create-kubernetes-cluster-with-kubeapps-quick-launcher-enabled class=md-nav__link> <span class=md-ellipsis> Create Kubernetes cluster with Kubeapps quick-launcher enabled🔗 </span> </a> </li> <li class=md-nav__item> <a href=#access-kubeapps-service-locally-from-your-browser class=md-nav__link> <span class=md-ellipsis> Access Kubeapps service locally from your browser🔗 </span> </a> </li> <li class=md-nav__item> <a href=#launch-sample-application-from-kubeapps class=md-nav__link> <span class=md-ellipsis> Launch sample application from Kubeapps🔗 </span> </a> </li> <li class=md-nav__item> <a href=#current-limitations class=md-nav__link> <span class=md-ellipsis> Current limitations🔗 </span> </a> </li> </ul> </nav> </div> </div> </div> <div class=md-content data-md-component=content> <article class="md-content__inner md-typeset"> <h1 id=enable-kubeapps-app-launcher-on-3engines-cloud-magnum-kubernetes-cluster>Enable Kubeapps app launcher on 3Engines Cloud Magnum Kubernetes cluster<a href=#enable-kubeapps-app-launcher-on-brand-name-magnum-kubernetes-cluster title="Permalink to this headline">🔗</a><a class=headerlink href=#enable-kubeapps-app-launcher-on-3engines-cloud-magnum-kubernetes-cluster title="Permanent link">&para;</a></h1> <p><a href=https://kubeapps.dev/ >Kubeapps</a> app-launcher enables quick deployments of applications on your Kubernetes cluster, with convenient graphical user interface. In this article we provide guidelines for creating Kubernetes cluster with Kubeapps feature enabled, and deploying sample applications.</p> <h2 id=what-we-are-going-to-cover>What We Are Going To Cover<a href=#what-we-are-going-to-cover title="Permalink to this headline">🔗</a><a class=headerlink href=#what-we-are-going-to-cover title="Permanent link">&para;</a></h2> <blockquote> <ul> <li>Brief background - deploying applications on Kubernetes</li> <li>Create a cluster with Kubeapps quick-launcher enabled</li> <li>Access Kubeapps service locally from browser</li> <li>Launch sample application from Kubeapps</li> <li>Current limitations</li> </ul> </blockquote> <h2 id=prerequisites>Prerequisites<a href=#prerequisites title="Permalink to this headline">🔗</a><a class=headerlink href=#prerequisites title="Permanent link">&para;</a></h2> <p>No. 1 <strong>Hosting</strong></p> <p>You need a 3Engines Cloud hosting account with Horizon interface <a href=https://horizon.3Engines.com>https://horizon.3Engines.com</a>.</p> <p>The resources that you require and use will reflect on the state of your account wallet. Check your account statistics at <a href=https://portal.3Engines.com/ >https://portal.3Engines.com/</a>.</p> <p>No. 2 <strong>Create Kubernetes cluster from Horizon GUI</strong></p> <p>Know how to create a Kubernetes cluster from Horizon GUI, as described in article <a href=How-to-Create-a-Kubernetes-Cluster-Using-3Engines-Cloud-OpenStack-Magnum.html.html>How to Create a Kubernetes Cluster Using 3Engines Cloud OpenStack Magnum</a></p> <p>No. 3 <strong>How to Access Kubernetes cluster post-deployment</strong></p> <p>Access to Linux command line and ability to access cluster, as described in article <a href=How-To-Access-Kubernetes-Cluster-Post-Deployment-Using-Kubectl-On-3Engines-Cloud-OpenStack-Magnum.html.html>How To Access Kubernetes Cluster Post Deployment Using Kubectl On 3Engines Cloud OpenStack Magnum</a></p> <p>No. 4 <strong>Handling Helm</strong></p> <p>Some familiarity with Helm, to customize app deployments with Kubeapps. See <a href=Deploying-Helm-Charts-on-Magnum-Kubernetes-Clusters-on-3Engines-Cloud-Cloud.html.html>Deploying Helm Charts on Magnum Kubernetes Clusters on 3Engines Cloud Cloud</a>.</p> <p>No. 5 <strong>Access to 3Engines clouds</strong></p> <p>Kubeapps is available on one of the clouds: WAW3-2, FRA1-2, WAW3-1.</p> <h2 id=background>Background<a href=#background title="Permalink to this headline">🔗</a><a class=headerlink href=#background title="Permanent link">&para;</a></h2> <p>Deploying complex applications on Kubernetes becomes notably more efficient and convenient with Helm. Adding to this convenience, <strong>Kubeapps</strong>, an app-launcher with Graphical User Interface (GUI), provides a user-friendly starting point for application management. This GUI allows to deploy and manage applications on your K8s cluster, limiting the need for deep command-line expertise.</p> <p>Kubeapps app-launcher can be enabled during cluster creation time. It will run as a local service, accessible from browser.</p> <h2 id=create-kubernetes-cluster-with-kubeapps-quick-launcher-enabled>Create Kubernetes cluster with Kubeapps quick-launcher enabled<a href=#create-kubernetes-cluster-with-kubeapps-quick-launcher-enabled title="Permalink to this headline">🔗</a><a class=headerlink href=#create-kubernetes-cluster-with-kubeapps-quick-launcher-enabled title="Permanent link">&para;</a></h2> <p>Creating Kubernetes cluster with Kubeapps enabled, follows the generic guideline described in Prerequisite No. 2.</p> <p>When creating the cluster in Horizon according to this guideline:</p> <blockquote> <ul> <li>insert three labels with below values in the “Advanced” tab and</li> <li>choose to override the labels.</li> </ul> </blockquote> <div class=highlight><pre><span></span><code><span id=__span-0-1><a id=__codelineno-0-1 name=__codelineno-0-1 href=#__codelineno-0-1></a>kubeapps_enabled=true,helm_client_tag=v3.11.3,helm_client_sha256=ca2d5d40d4cdfb9a3a6205dd803b5bc8def00bd2f13e5526c127e9b667974a89
</span></code></pre></div> <p>Important</p> <p>There may be no spaces between label values.</p> <p>Inserting these labels is shown in the image below:</p> <p><a class=glightbox href=../_images/image-2024-2-13_13-15-17.png data-type=image data-width=100% data-height=auto data-desc-position=bottom><img alt=image-2024-2-13_13-15-17.png src=../_images/image-2024-2-13_13-15-17.png></a></p> <h2 id=access-kubeapps-service-locally-from-your-browser>Access Kubeapps service locally from your browser<a href=#access-kubeapps-service-locally-from-your-browser title="Permalink to this headline">🔗</a><a class=headerlink href=#access-kubeapps-service-locally-from-your-browser title="Permanent link">&para;</a></h2> <p>Once the cluster is created, access the Linux console. You should have <strong>kubectl</strong> command line tool available, as specified in Prerequisite No. 3.</p> <p>Kubeapps service is enabled for the kubeapps-operator service account. We need to obtain the token that authenticates this service account with the cluster.</p> <p>To print the token, run the following command:</p> <div class=highlight><pre><span></span><code><span id=__span-1-1><a id=__codelineno-1-1 name=__codelineno-1-1 href=#__codelineno-1-1></a>kubectl get secret $(kubectl get serviceaccount kubeapps-operator -o jsonpath=&#39;{.secrets[].name}&#39;) -o go-template=&#39;{{.data.token | base64decode}}&#39; &amp;&amp; echo
</span></code></pre></div> <p>As result, a long token will be printed, similar to the following:</p> <p><a class=glightbox href=../_images/image-2024-2-13_14-44-49.png data-type=image data-width=100% data-height=auto data-desc-position=bottom><img alt=image-2024-2-13_14-44-49.png src=../_images/image-2024-2-13_14-44-49.png></a></p> <p>Copy the token. Then run the following command to tunnel the traffic between your local machine and the Kubeapps service:</p> <div class=highlight><pre><span></span><code><span id=__span-2-1><a id=__codelineno-2-1 name=__codelineno-2-1 href=#__codelineno-2-1></a>kubectl port-forward -n kube-system svc/magnum-apps-kubeapps 8080:80
</span></code></pre></div> <p>Type <strong>localhost:8080</strong> in your browser to access Kubeapps, paste the token copied earlier and click <strong>Submit</strong>:</p> <p><a class=glightbox href=../_images/image-2024-2-13_15-39-52.png data-type=image data-width=100% data-height=auto data-desc-position=bottom><img alt=image-2024-2-13_15-39-52.png src=../_images/image-2024-2-13_15-39-52.png></a></p> <p>You can now operate Kubeapps:</p> <p><a class=glightbox href=../_images/image-2024-2-13_15-48-38.png data-type=image data-width=100% data-height=auto data-desc-position=bottom><img alt=image-2024-2-13_15-48-38.png src=../_images/image-2024-2-13_15-48-38.png></a></p> <h2 id=launch-sample-application-from-kubeapps>Launch sample application from Kubeapps<a href=#launch-sample-application-from-kubeapps title="Permalink to this headline">🔗</a><a class=headerlink href=#launch-sample-application-from-kubeapps title="Permanent link">&para;</a></h2> <p>Clicking on “Catalog” exposes a long list of applications available for downloads from Kubeapps app-store.</p> <p><a class=glightbox href=../_images/image-2024-2-13_16-8-43.png data-type=image data-width=100% data-height=auto data-desc-position=bottom><img alt=image-2024-2-13_16-8-43.png src=../_images/image-2024-2-13_16-8-43.png></a></p> <p>As an example, we will install the Apache webserver and in order to do so, click on the “Apache” box. Note that Kubeapps interface is the graphical shortcut, which behind the scenes installs Helm chart on the cluster.</p> <p>Once you familiarize yourself with prerequisites and additional information about this chart, click <strong>Deploy</strong> in the top right corner:</p> <p><a class=glightbox href=../_images/image-2024-2-13_15-58-45.png data-type=image data-width=100% data-height=auto data-desc-position=bottom><img alt=image-2024-2-13_15-58-45.png src=../_images/image-2024-2-13_15-58-45.png></a></p> <p>The next screen with the default “Visual Editor” tab enabled, allows to define a few major adjustments to how the service is deployed e.g. specifying the service type or replica count. Access to more detailed configurations (reflecting Helm chart’s <em>values.yaml</em> configuration file) is also available in the “YAML editor” GUI tab.</p> <p>To follow with the article do not change the defaults, only enter the <strong>Name of deployment</strong> (in our case <em>apache-test</em>) and hit <strong>Deploy</strong> with the available version:</p> <p><a class=glightbox href=../_images/image-2024-2-13_16-13-21.png data-type=image data-width=100% data-height=auto data-desc-position=bottom><img alt=image-2024-2-13_16-13-21.png src=../_images/image-2024-2-13_16-13-21.png></a></p> <p>Since we deployed a service of type LoadBalancer, we need to wait a few minutes for it to be deployed on the cloud. After this completes, we can see the screen confirming the deployment is complete:</p> <p><a class=glightbox href=../_images/image-2024-2-13_16-31-37.png data-type=image data-width=100% data-height=auto data-desc-position=bottom><img alt=image-2024-2-13_16-31-37.png src=../_images/image-2024-2-13_16-31-37.png></a></p> <p>Also, in the console, we can double-check that the Apache service, along with the deployment and pod, were properly deployed. Execute the following commands:</p> <div class=highlight><pre><span></span><code><span id=__span-3-1><a id=__codelineno-3-1 name=__codelineno-3-1 href=#__codelineno-3-1></a>kubectl get deployments
</span><span id=__span-3-2><a id=__codelineno-3-2 name=__codelineno-3-2 href=#__codelineno-3-2></a>kubectl get pods
</span><span id=__span-3-3><a id=__codelineno-3-3 name=__codelineno-3-3 href=#__codelineno-3-3></a>kubectl get services
</span></code></pre></div> <p>The results will be similar to this:</p> <p><a class=glightbox href=../_images/image-2024-2-13_16-29-35.png data-type=image data-width=100% data-height=auto data-desc-position=bottom><img alt=image-2024-2-13_16-29-35.png src=../_images/image-2024-2-13_16-29-35.png></a></p> <h2 id=current-limitations>Current limitations<a href=#current-limitations title="Permalink to this headline">🔗</a><a class=headerlink href=#current-limitations title="Permanent link">&para;</a></h2> <p>Both Kubeapps and Helm charts deployed by this launcher are open-source projects, which are continuously evolving. The versions installed on 3Engines Cloud cloud provide a snapshot of this development, as a convenience feature.</p> <p>It is expected that not all applications can be installed with one-click and additional configuration will be needed in each particular case.</p> <p>One known limitation is that certain charts will require RWM (ReadWriteMany) persistent volume claims to properly operate. Currently, RWM persistent volumes are not natively available on 3Engines Cloud cloud. A workaround could be installing NFS server and deploying a StorageClass with RWM-supportive provisioner e.g. using <a href=https://github.com/kubernetes-sigs/nfs-subdir-external-provisioner>nfs-subdir-external-provisioner</a> project from GitHub.</p> <p>For NFS on Kubernetes cluster, see <a href=Create-and-access-NFS-server-from-Kubernetes-on-3Engines-Cloud.html.html>Create and access NFS server from Kubernetes on 3Engines Cloud</a>.</p> </article> </div> <script>var target=document.getElementById(location.hash.slice(1));target&&target.name&&(target.checked=target.name.startsWith("__tabbed_"))</script> </div> <button type=button class="md-top md-icon" data-md-component=top hidden> <svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 24 24"><path d="M13 20h-2V8l-5.5 5.5-1.42-1.42L12 4.16l7.92 7.92-1.42 1.42L13 8z"/></svg> Back to top </button> </main> <footer class=md-footer> <div class="md-footer-meta md-typeset"> <div class="md-footer-meta__inner md-grid"> <div class=md-copyright> Made with <a href=https://squidfunk.github.io/mkdocs-material/ target=_blank rel=noopener> Material for MkDocs </a> </div> </div> </div> </footer> </div> <div class=md-dialog data-md-component=dialog> <div class="md-dialog__inner md-typeset"></div> </div> <script id=__config type=application/json>{"base": "..", "features": ["content.code.annotate", "content.code.copy", "content.tooltips", "navigation.tabs", "navigation.sections", "navigation.footer", "navigation.indexes", "navigation.sections", "navigation.top", "navigation.tracking", "search.highlight", "search.share", "search.suggest", "toc.follow"], "search": "../assets/javascripts/workers/search.d50fe291.min.js", "tags": null, "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}, "version": null}</script> <script src=../assets/javascripts/bundle.13a4f30d.min.js></script> <script id="init-glightbox">const lightbox = GLightbox({"touchNavigation": false, "loop": false, "zoomable": true, "draggable": true, "openEffect": "zoom", "closeEffect": "zoom", "slideEffect": "slide"});
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