Install and create a Kubernetes cluster on lxc proxmox
You can use below articles to get the desired result:Run kubernetes inside LXC container or Run Kubernetes as Proxmox container
To summarize above articles you should perform next steps:
1) Add overlay driver
for docker.
echo overlay >> /etc/modules
2) Add more privileges to container by modifying container config
lxc.apparmor.profile: unconfinedlxc.cap.drop: lxc.cgroup.devices.allow: alxc.mount.auto: proc:rw sys:rw
3) Use shared filesystem to /etc/rc.local
echo '#!/bin/sh -emount --make-rshared /' > /etc/rc.local
4) Init cluster using kubeadm