vmtests: create

[dbungert]

Add a vmtests directory with a framework based on pytest, virt-install, and autoinstall to automate test runs in a VM.

Sample invocation:

pytest-3 --iso=/srv/iso/resolute/resolute-live-server-amd64.iso

Has some marked FIXMEs, I expect to tweak the initial contents of the actual tests also.

[ogayot]

Thanks for making vmtest a thing! I have some suggestions but nothing blocks merging in my opinion.

I would like to have a way to specify the libvirt instance to use (i.e., qemu:///session vs qemu:///system).

It can be passed to virsh and virt-install using virsh --connect qemu:///session and virt-install --connect qemu:///session.

Maybe, define a virsh function?

def virsh(args: list[str], **kwargs):
    prefix = ["virsh"]
    if libvirt_instance is not None:
        prefix.extend(["--connect", libvirt_instance])
    return runcmd(prefix + args, **kwargs)

[ogayot]

I like result.write_text(...) but it's up to you!

https://docs.python.org/3/library/pathlib.html#pathlib.Path.write_text

[dbungert]

Thanks @ogayot for the first round feedback. Updates since that round:

• more type info on functions
• a few docstring updates
• rethink the keyword argument name on VM() for the test cloud config partial snippet, going with cloud_config
• fix handling VM(cloud_config=None)
• dynamically determine the minimal source ID, thus allowing this to run desktop-style ISOs
• some function names that should be clearer, for instance s/_assert_install_success/_assert_state_late_commands
• log directory also uses seconds in the directory name
• some FIXMEs closed, some added
• default all waits with a timeout to 300s
• handle tests that have late-commands

[dbungert]

And the virsh part is still outstanding