vboxvmservice@.service

[Unit]
Description=VBox Virtual Machine %i Service
Requires=systemd-modules-load.service
After=systemd-modules-load.service

[Service]
User=username
Group=vboxusers
ExecStart=/usr/bin/VBoxHeadless -s %i
ExecStop=/usr/bin/VBoxManage controlvm %i savestate

[Install]
WantedBy=multi-user.target

workon_vmname

#! /bin/bash

VM_NAME=""
IP=""
USER=""
PWD=""
WORK_DIR=""

systemctl start vboxvmservice@$VM_NAME.service

while [ true ];
do
    sshpass -p $PWD ssh -t -o StrictHostKeyChecking=no $USER@$IP  "cd $WORK_DIR; tmux attach || tmux"
    if [ $? -ne 0 ]; then
       sleep 3
    else
       break
    fi
done