From 0 to a working k8s cluster with Ansible

Hi guys, hope you are good and safe!

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.

It supports now k8s 1.19 and cri-o 1.19.

kubealex / libvirt-k8s-provisioner

Automate your k8s installation

libvirt-k8s-provisioner - Automate your cluster provisioning from 0 to k8s!

Welcome to the home of the project!

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.

Terraform will take care of the provisioning of:

• Loadbalancer machine with haproxy installed and configured for HA clusters
• k8s Master(s) VM(s)
• k8s Worker(s) VM(s)

It also takes care of preparing the host machine with needed packages, configuring:

• dedicated libvirt dnsmasq configuration
• dedicated libvirt network (fully customizable)
• dedicated libvirt storage pool (fully customizable)
• terraform
• libvirt-terraform-provider ( compiled and initialized based on https://github.com/dmacvicar/terraform-provider-libvirt)

You can customize the setup choosing:

• container runtime that you want to use (docker, cri-o, containerd).
• schedulable master if you want to schedule on your master nodes or leave the taint.
• service CIDR to be used during installation.
• pod CIDR to be used during installation.
• network plugin…

View on GitHub

Click on the collapsible for a short description of the tool or just head to the github repo to try it out!

SPECS

It will provision:

• Loadbalancer machine with haproxy installed and configured for HA clusters

• k8s Master(s) VM(s)

• k8s Worker(s) VM(s)

It also takes care of preparing the host machine with needed packages, configuring:

• dedicated libvirt dnsmasq configuration

• dedicated libvirt network (fully customizable)

• dedicated libvirt storage pool (fully customizable)

• terraform

• libvirt-terraform-provider ( compiled and initialized based on https://github.com/dmacvicar/terraform-provider-libvirt)

You can customize the setup choosing:

• container runtime that you want to use (docker, cri-o, containerd).

• schedulable master if you want to schedule on your master nodes or leave the taint.

• service CIDR to be used during installation.

• pod CIDR to be used during installation.

• network plugin to be used, based on the documentation. Project Calico Flannel

• nginx-ingress-controller or haproxy-ingress-controller if you want to enable ingress management.

• Rancher installation to manage your cluster.

• Rook-Ceph operator

Feel free to enjoy it and contribute, if you want!