Implement default username retrieval for Proxmox

[ader1990]

The default username for which the password/ssh keys are set is configurable in the configuration file.
But in the case of Windows VMs on Proxmox, the username customization ends up in the USER_DATA file:

#cloud-config
hostname: avladu-test-proxmox
manage_etc_hosts: true
fqdn: avladu-test-proxmox.maas.local
user: AdminProxmox
password: Passw0rd
chpasswd:
  expire: False
users:
  - default
package_upgrade: true

Discussion is needed to see if the Proxmox community can make the same format as OpenStack's or cloudbase-init needs to offer that option. See: 39e2f6f.

The upstream discussion is here: https://bugzilla.proxmox.com/show_bug.cgi?id=4493.

Thanks!

[puffi]

Thank you for opening the issue.

I think I've actually tried setting the admin_username, but it's been a long time since I last tested it.
I'll have to test it again.
Is there a list of all config options for each of the services for a quick lookup of what's supported?
Or is it only documented in code so far?

The issue though with the username is, that we don't handle admin user differently from a normal user. With cloud-init and Linux you can simply specify root as username, and it will change it for that user.
Windows seems to separate admin users from normal users?

In Proxmox VE we currently don't have an option to specify either admin or normal user.

[ader1990]

Hello, for ConfigDrive -> you can take a look here: https://cloudbase-init.readthedocs.io/en/latest/services.html#openstack-configuration-drive and for NoCloud here: https://cloudbase-init.readthedocs.io/en/latest/services.html#nocloud-configuration-drive (Capabilities section).

The best way to go forward would be to have here a complete example of the contents for each type of config drives created by Proxmox and we can start from there. Full ISOs attached here can work too.

Cloudbase-init has functional tests based on these metadata examples https://github.com/cloudbase/cloudbase-init-test-resources/tree/master/openstack/cloudbase-init-metadata and https://github.com/cloudbase/cloudbase-init-test-resources/tree/master/nocloud.

Once we have a good complete ISO examples, I can change the https://github.com/cloudbase/cloudbase-init-test-resources accordingly and then update cloudbase-init code to implement the desired functionality.

Thanks.