Provision Machines

• My nodes are Arch Linux machines on bare metal
  • Nodes must be ready to be controlled via Ansible
    • Have python3 installed for Ansible
    • Need to be ssh-able from a workstation
      • You can grab keys like so: curl -L files.lyte.dev/key.pub >> ~/.ssh/authorized_keys
    • TODO: script this? maybe custom ISO+PXEBoot?
• Setup Ansible on the controller (from ./ansible)
  • ansible-galaxy install -r requirements.yml --force
• Verify Ansible can reach hosts (from ./ansible)
  • ansible all -i inventory/hosts.yml --list-hosts
  • ansible all -i inventory/hosts.yml -m ping
• Use Ansible to prepare hosts for k3s installation (from ./ansible)
  • ansible-playbook -i inventory/hosts.yml ./provision.yml
• Use Ansible to install k3s as configured on all nodes (from ./ansible)
  • ansible-playbook -i inventory/hosts.yml ./install-k3s.yml
    • You have to run this multiple times for the worker nodes to successfully connect to the control plane nodes
• Setup your local kubectl to work with the new cluster
  • ansible -i ansible/inventory/hosts.yml $REMOTE_HOST -m fetch -a "src=/etc/rancher/k3s/k3s.yaml dest=./k3s-cluster-config.yaml flat=yes"
  • Copy the cluster information from the ./k3s-cluster-config.yaml file into your existing ~/.kube/config (or just copy it there if it doesn't exist)
    • You will need to edit the host from localhost/127.0.0.1 to the correct host