mkdir /mnt
mount /dev/vda /mnt
chroot /mnt

touch /etc/cloud/cloud-init.disabled

echo 'root:root' | chpasswd

ssh-keygen -f /etc/ssh/ssh_host_rsa_key -N '' -t rsa
ssh-keygen -f /etc/ssh/ssh_host_dsa_key -N '' -t dsa
ssh-keygen -f /etc/ssh/ssh_host_ed25519_key -N '' -t ed25519

cat <<EOF > /etc/netplan/01-dhcp.yaml 
network:
    version: 2
    ethernets:
        enp0s1:
            dhcp4: true
            addresses: [192.168.64.2/24]
            nameservers:
                addresses: [8.8.8.8, 8.8.4.4]    
EOF

exit
umount /dev/vda