Kubernetes on LXD

config:
  limits.cpu: "2"
  limits.memory: 2GB
  limits.memory.swap: "false"
  linux.kernel_modules: ip_vs,ip_vs_rr,ip_vs_wrr,ip_vs_sh,ip_tables,ip6_tables,netlink_diag,nf_nat,overlay,br_netfilter,zfs
  raw.lxc: |
    lxc.apparmor.profile=unconfined
    lxc.mount.auto=proc:rw sys:rw
    lxc.cgroup.devices.allow=a
    lxc.cap.drop=    
  security.nesting: "true"
  security.privileged: "true"
  user.user-data: |
    #cloud-config
    ssh_authorized_keys:
      - {{$MY_SSH_KEY}}    
description: Kubernetes LXD profile
devices:
  eth0:
    name: eth0
    network: lxdbr0
    type: nic
  root:
    path: /
    pool: kubernetes
    type: disk
name: kubernetes

#!/bin/bash

usage()
{
  echo "Usage: kube [provision|destroy]"
  exit 1
}

NODES="kmaster kworker1 kworker2 kworker3"

function provision() {
    for node in $NODES
    do
        echo "creating node $node"
        lxc launch -p kubernetes ubuntu-20.04 $node
    done
}

function destroy() {
    for node in $NODES
    do
        echo "Deleting node $node"
        lxc delete -f $node
    done
}


case "$1" in
  provision)
    echo -e "\nProvisioning Kubernetes Cluster...\n"
    provision
    ;;
  destroy)
    echo -e "\nDestroying Kubernetes Cluster...\n"
    destroy
    ;;
  *)
    usage
    ;;
esac