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armlab

clean sheet quick and dirty k8s and virt lab on some performant SBCs

getting started

This repo is meant to be the ansible project directory.. or close to it plus documentation.. Trying to leverage off-the-shelf roles when possible. Other roles will via the lanefu armlab collection

There's plenty of other things in repo besides what is in readme.. this is kind of a living work space for me.

environment setup

there are better ways, but this way for now... .gitignore has been preconfigured to use namedspace ansible home .ansible/ and venv used in the example.

requirements

assume you have python3 and python3-venv installed

python3 -m venv venv
source venv/bin/activate
python3 -m pip install -r requirements.txt
ansible-galaxy install -r requirements.yml
ansible-galaxy install -r requirements-armlab.yml

playbooks

cockpit_vmhost.yml

Installs qemu, libvirt, and cockpit for deploying virtual machines

provision_k8s_nodes.yml

Provision a pool of VMs on the VM hosts intended to be used later as k8s control plane and worker nodes

notes for me

ansible-playbook playbooks/provision_k8s_nodes.yml -e @vars/local.yml

destroy_k8s_nodes.yml

Destroy the VMs Above

provision_k8s_cluster.yml

Bootstrap a k3s cluster

provison_vm.yml

playbook to deploy a single VM

scripts

I love ansible, but I'm not a purist. I'm extremely prone to lots of wrapper scripts as I experiment with things. You'll see me even chain lots of ansible playbooks and commands in my scripts.

Note: you might see me source local config files where I have some "private" configuration values I did't want to upload.. They typically are just defining vars used directly in the script. Easy for you to recreate.

Interesting things in my scripts folder:

  • scripts/big_bang.sh - soup to nuts deployment of my test k3s cluster from VM creation to fluxcd installation. Good one to look at
  • scripts/fetch_kubeconfig.sh - fetch kubeconfig from cluster cluster node and prepare for local use by updating API endpoint
  • scripts/kubevirt/ - scripts I used for experimenting with kubevirt bootstrapping. Currently targeted at x86 instead of ARM :P