Create Containers in proxmox 4

container_helpers.sh

SSH_KEY="your_key_here"

CONTAINER_VOLUME="lxcvols"

create-container(){
  local name="$1"
  local memory="$2" 
  local disk="$3"

  local ID="$(expr $(pct list | tail -n1 | cut -d" " -f1) + 1)"
  local DISKNAME="subvol-$ID-disk-1"

  if [ -z "$4" ];then
   # this creates an image global variable
   prompt-os
   local image="$IMAGE"
   unset IMAGE
  else
   local image="$4"
  fi

  pct create $ID "/var/lib/vz/template/cache/$image" -storage $CONTAINER_VOLUME -hostname $name -memory $memory -net0 name=eth0,bridge=vmbr0,ip=dhcp,ip6=dhcp

  if [ -n "$disk" ];then
     pct resize $ID rootfs "$disk"
  fi
  pct start $ID
  mkdir "/rpool/lxc_disks/$DISKNAME/root/.ssh"
  echo "$SSH_KEY" > "/rpool/lxc_disks/$DISKNAME/root/.ssh/authorized_keys" 
  chmod 700 "/rpool/lxc_disks/$DISKNAME/root/.ssh"
  chmod 644 "/rpool/lxc_disks/$DISKNAME/root/.ssh/authorized_keys"
  if [[ "$image" =~ "^centos" ]]; then
    pct exec $ID /usr/sbin/service sshd restart
  elif [[ "$image" =~ "^ubuntu" ]]; then
    pct exec $ID /usr/sbin/service ssh restart
  fi

}

prompt-os(){
  local index=0
  while : ; do
    echo "Select Container Image:"
    list-container-images | cat -n
    printf "Select: "
    read index
    [[ $index -gt 0  && $index -le $(list-container-images | wc -l )  ]] && break
  done
  IMAGE=$(list-container-images | sed -n "${index}p")
}

list-container-images(){
  find /var/lib/vz/template/cache/ -type f | cut -d"/" -f7
}