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      7 <title>Kubernetes on NixOS</title>
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     18 <header>
     19 <h1 class="title">Kubernetes on NixOS</h1>
     20 </header><p>
     21 This document will serve to document the way I setup my own little personal kubernetes
     22 cluster on NixOS. I am using virtual machines for this (as of today) because it is simpler
     23 to use, and as for <a href="microk8s.html">microk8s</a> document, I rely on the fact that my network setup is capable
     24 of assigning a predefined IP to a given mac address.
     25 </p>
     26 <section id="outline-container-Why%20Kubernetes%20at%20home%20%3F" class="outline-2">
     27 <h2 id="Why%20Kubernetes%20at%20home%20%3F">Why Kubernetes at home ?</h2>
     28 <div class="outline-text-2" id="text-Why%20Kubernetes%20at%20home%20%3F">
     29 <p>
     30 The first question that can come to mind is &ldquo;why the hell do you want to setup a
     31 kubernetes cluster at home&rdquo; ? And… that&rsquo;s a valid question.
     32 </p>
     33 
     34 <p>
     35 I work daily on Kubernetes and OpenShift, and on a CI/CD tooling that I want to be as
     36 useful as possible. If I don&rsquo;t use it myself, what the hell am I doing right ? That&rsquo;s the
     37 main reason why setuping a Kubernetes (and of course <a href="https://tekton.dev">Tekton</a> on it) — gaining operational
     38 knowledge, find the gap and enhancements, …
     39 </p>
     40 </div>
     41 </section>
     42 <section id="outline-container-Bootstrap%20the%20cluster" class="outline-2">
     43 <h2 id="Bootstrap%20the%20cluster">Bootstrap the cluster</h2>
     44 <div class="outline-text-2" id="text-Bootstrap%20the%20cluster">
     45 <p>
     46 How big should the cluster be ? 3 nodes or 5 nodes ?
     47 Let&rsquo;s start with 3, and figure the rest out.
     48 </p>
     49 
     50 <p>
     51 We need to do the following to boostrap the cluster:
     52 </p>
     53 <ul class="org-ul">
     54 <li>Configure the network to allocate a set of IP for a set a MAC address</li>
     55 <li>Create VMs images (<code>qcow2</code>) with NixOS and the base system on</li>
     56 <li>Create VMs on a remote server libvirt</li>
     57 <li><i>Hopefully</i> enjoy, and <code>ssh</code> onto them in need be</li>
     58 </ul>
     59 
     60 <p>
     61 Ideally, the image we build is using the configuration, this means we should, in theory,
     62 use <code>nixos-generate</code> targeting our <i>node</i> configuration, and it should be the exact same thing
     63 used for <code>morph</code>.
     64 </p>
     65 
     66 <p>
     67 Once the images are created, we need to copy them to the right host and from there, create
     68 the virtual machine. Ideally, we do this automatically, command-line, …
     69 </p>
     70 </div>
     71 </section>
     72 <section id="outline-container-References" class="outline-2">
     73 <h2 id="References">References</h2>
     74 <div class="outline-text-2" id="text-References">
     75 </div>
     76 <div id="outline-container-%5B%5Bhttps%3A%2F%2Fnixos.wiki%2Fwiki%2FKubernetes%5D%5BKubernetes%20-%20NixOS%20Wiki%5D%5D" class="outline-3">
     77 <h3 id="%5B%5Bhttps%3A%2F%2Fnixos.wiki%2Fwiki%2FKubernetes%5D%5BKubernetes%20-%20NixOS%20Wiki%5D%5D"><a href="https://nixos.wiki/wiki/Kubernetes">Kubernetes - NixOS Wiki</a></h3>
     78 <div class="outline-text-3" id="text-%5B%5Bhttps%3A%2F%2Fnixos.wiki%2Fwiki%2FKubernetes%5D%5BKubernetes%20-%20NixOS%20Wiki%5D%5D">
     79 <p>
     80 <span class="timestamp-wrapper"><span class="timestamp">[2020-06-11 Thu 15:25]</span></span>
     81 </p>
     82 </div>
     83 </div>
     84 </section>
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