The latest articles on DEV Community by Alessandro Rossi (@kubealex). https://dev.to/kubealex https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F481331%2F73d648ea-3b00-4c57-a6bc-cc776ead5cf6.png https://dev.to/kubealex en Alessandro Rossi Sat, 03 Oct 2020 22:56:52 +0000 https://dev.to/kubealex/from-0-to-a-working-k8s-cluster-with-ansible-2o74 https://dev.to/kubealex/from-0-to-a-working-k8s-cluster-with-ansible-2o74 <p>Hi guys, hope you are good and safe!</p> <p>I wanted to share a little tool that I created to provision a fully working k8s cluster in about 20 mins just using Ansible, terraform and libvirt.</p> <p>It supports now k8s 1.19 and cri-o 1.19.</p> <div class="ltag-github-readme-tag"> <div class="readme-overview"> <h2> <img src="https://res.cloudinary.com/practicaldev/image/fetch/s--vJ70wriM--/c_limit%2Cf_auto%2Cfl_progressive%2Cq_auto%2Cw_880/https://practicaldev-herokuapp-com.freetls.fastly.net/assets/github-logo-ba8488d21cd8ee1fee097b8410db9deaa41d0ca30b004c0c63de0a479114156f.svg" alt="GitHub logo"> <a href="https://github.com/kubealex"> kubealex </a> / <a href="https://github.com/kubealex/libvirt-k8s-provisioner"> libvirt-k8s-provisioner </a> </h2> <h3> Automate your k8s installation </h3> </div> <div class="ltag-github-body"> <div id="readme" class="md"> <p><a href="https://opensource.org/licenses/MIT" rel="nofollow"><img src="https://camo.githubusercontent.com/3ccf4c50a1576b0dd30b286717451fa56b783512/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f4c6963656e73652d4d49542d79656c6c6f772e737667" alt="License: MIT"></a></p> <h1> libvirt-k8s-provisioner - Automate your cluster provisioning from 0 to k8s!</h1> <p>Welcome to the home of the project!</p> <p>With this project, you can build up in minutes a fully working k8s cluster (single master/HA) with as many worker nodes as you want.</p> <p>Terraform will take care of the provisioning of:</p> <ul> <li>Loadbalancer machine with <strong>haproxy</strong> installed and configured for <strong>HA</strong> clusters</li> <li>k8s Master(s) VM(s)</li> <li>k8s Worker(s) VM(s)</li> </ul> <p>It also takes care of preparing the host machine with needed packages, configuring:</p> <ul> <li>dedicated libvirt dnsmasq configuration</li> <li>dedicated libvirt network (fully customizable)</li> <li>dedicated libvirt storage pool (fully customizable)</li> <li>terraform</li> <li>libvirt-terraform-provider ( compiled and initialized based on <a href="https://github.com/dmacvicar/terraform-provider-libvirt">https://github.com/dmacvicar/terraform-provider-libvirt</a>)</li> </ul> <p>You can customize the setup choosing:</p> <ul> <li> <strong>container runtime</strong> that you want to use (docker, cri-o, containerd).</li> <li> <strong>schedulable master</strong> if you want to schedule on your master nodes or leave the taint.</li> <li> <strong>service CIDR</strong> to be used during installation.</li> <li> <strong>pod CIDR</strong> to be used during installation.</li> <li> <strong>network plugin</strong>…</li> </ul> </div> </div> <div class="gh-btn-container"><a class="gh-btn" href="https://github.com/kubealex/libvirt-k8s-provisioner">View on GitHub</a></div> </div> <p>Click on the collapsible for a short description of the tool or just head to the github repo to try it out!</p> <p> SPECS <p>It will provision:</p> <ul> <li><p>Loadbalancer machine with haproxy installed and configured for HA clusters</p></li> <li><p>k8s Master(s) VM(s)</p></li> <li><p>k8s Worker(s) VM(s)</p></li> </ul> <p>It also takes care of preparing the host machine with needed packages, configuring:</p> <ul> <li><p>dedicated libvirt dnsmasq configuration</p></li> <li><p>dedicated libvirt network (fully customizable)</p></li> <li><p>dedicated libvirt storage pool (fully customizable)</p></li> <li><p>terraform</p></li> <li><p>libvirt-terraform-provider ( compiled and initialized based on <a href="https://github.com/dmacvicar/terraform-provider-libvirt">https://github.com/dmacvicar/terraform-provider-libvirt</a>)</p></li> </ul> <p>You can customize the setup choosing:</p> <ul> <li><p>container runtime that you want to use (docker, cri-o, containerd).</p></li> <li><p>schedulable master if you want to schedule on your master nodes or leave the taint.</p></li> <li><p>service CIDR to be used during installation.</p></li> <li><p>pod CIDR to be used during installation.</p></li> <li><p>network plugin to be used, based on the documentation. Project Calico Flannel</p></li> <li><p>nginx-ingress-controller or haproxy-ingress-controller if you want to enable ingress management.</p></li> <li><p>Rancher installation to manage your cluster.</p></li> <li><p>Rook-Ceph operator</p></li> </ul> </p> <p>Feel free to enjoy it and contribute, if you want!</p> kubernetes ansible devops linux