How to use multipass to create a ubuntu virtual system for development

This method allows you to use systemd and snap and docker

multipass stop primary
multipass delete primary
multipass purge
multipass launch 22.04 --cpus 8 --memory 16G --disk 50G --name primary

multipass umount primary 
multipass mount ~/ubuntu_docker primary:/root
multipass shell
sudo su
cd /root

export ssh_root_password=yingshaoxo
curl -sSL https://raw.githubusercontent.com/yingshaoxo/ubuntu_ssh_server_for_the_stupid_apple_macos_m1_system/main/basement/2.set_ssh_password_script.py | python3

sudo chown -R $(whoami):$(whoami) .
sudo chmod g+rw .

exit
exit

multipass info primary

You will get an ip address like 192.168.64.16 in the output: 

Name:           primary
State:          Running
IPv4:           192.168.64.16
                172.17.0.1
Release:        Ubuntu 22.04.2 LTS
Image hash:     f6b5b3a980f2 (Ubuntu 22.04 LTS)
CPU(s):         8
Load:           0.24 0.05 0.02
Disk usage:     2.0GiB out of 48.3GiB
Memory usage:   280.8MiB out of 15.6GiB
Mounts:         /Users/yingshaoxo/ubuntu_docker => /root
                    UID map: 501:default
                    GID map: 80:default

ssh root@192.168.64.16
# the password is 'yingshaoxo' here

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