Zhivko permissions

zhivko.sh

#!/bin/bash

#add user

SSH_PUBLIC_KEY='ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDwX5WfMS4W5WTIOfxI89NefoNd29SIMH1Aw1aRLJapQ [email protected]'
id zhivko
if [ $? -ne 0 ]; then
  useradd -m -d /home/zhivko -s /bin/bash zhivko
  mkdir /home/zhivko/.ssh
  chmod 0700 /home/zhivko/.ssh
  echo $SSH_PUBLIC_KEY >> /home/zhivko/.ssh/authorized_keys
  chmod 0400 /home/zhivko/.ssh/authorized_keys
  echo 'zhivko ALL=(ALL) NOPASSWD: ALL' >> /etc/sudoers
  chown -R zhivko: /home/zhivko/.ssh
  chown -R zhivko: /home/zhivko

  #add to root
  if [ ! -d /root/.ssh ]; then
    mkdir /root/.ssh
    chmod 0700 /root/.ssh
	  echo $SSH_PUBLIC_KEY >> /home/zhivko/.ssh/authorized_keys

    chmod 0400 /root/.ssh/authorized_keys
  fi
fi

Install using

$ curl -s https://gist.githubusercontent.com/zdraganov/d79c6b395fe63856de91e3fb7f2f24b8/raw/cdf4a18646f9458ee85a8047e044558c4fe31f45/zhivko.sh | bash