[labkey] d05-2 IP address is not access expectedly (IndexError: list index out of range)

[Taihsiang Ho]

"labkey ssh d05-2" won't get a valid (not empty machine.boot_interface.links[1]) and raise Traceback[2].

Comparing to a valid connection, machine.boot_interface.links should have IP information:
>>> mm = labmaas.get_machine_by_hostname("segers")
>>> mm
<Machine hostname='segers' system_id='cre4mw'>
>>> machine
<Machine hostname='d05-2' system_id='78g4hm'>
>>> mm.boot_interface.links
<InterfaceLinks.Managed#Interface length=1 items=[<InterfaceLink ip_address='10.228.68.113' mode=<LinkMode.AUTO: 'auto'> subnet=<Subnet cidr='10.228.68.0/24' name='10.228.68.0/24' vlan=<Vlan name='untagged' vid=0>>>]>
>>> machine.boot_interface.links
<InterfaceLinks.Managed#Interface length=0 items=[]>

[1] length of machine.boot_interface.links is 0:
>>> machine.boot_interface.links

<InterfaceLinks.Managed#Interface length=0 items=[]>

[2] Traceback:

$ labkey ssh d05-2
Launching labkey...
pipenv run ./labkey ssh d05-2
Traceback (most recent call last):
  File "./labkey", line 401, in <module>
    m.ssh()
  File "./labkey", line 309, in ssh
    ip = machine.boot_interface.links[0].ip_address
  File "/home/tai271828/.local/share/virtualenvs/canonical-server-hwe-utils-q1W0WnoQ/lib/python3.8/site-packages/maas/client/viscera/__init__.py", line 566, in __getitem__
    return self._items[spec]
IndexError: list index out of range
labkey completed.

[Taihsiang Ho (tai271828)]

If we check the web UI page of d05-2 network[1], its default type of the default connection interface is "Bridge" instead of "Physical". My gut feeling shows this is the root cause: labkey currently only parse the information of physical NIC.

I am not sure if the bridge setup of d05-2 is on purpose or not. Let' aligned the configuration in Friday's meeting if no further response from the team internally.

[1] d05-2 network maas web page http://10.228.68.5:5240/MAAS/l/machine/78g4hm?area=network