Landscape-client on Ubuntu Core 22 duplicate computers

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1

Hey there,

I am trying to connect Ubuntu Core 22 devices to Landscape and it mostly seems to work, except that the UI is giving me errors that I have duplicate computers (and subsequently other functionality is not working as expected).

What is Landscape using as unique identifier for this? I get a duplicate error for two devices that are on different hardware, have different serials and different computer titles…

The two devices on Landscape UI look like this:

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image1062×1778 225 KB
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image1068×1748 195 KB

and the error looks like this (notice filter for alert:computer-duplicate on the left):

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image2670×866 219 KB

Regards, Charlee

2

I wonder if @mikecw has an idea (perhaps there is even already a bug open ?)

3

Hi,

Yes, so the duplicate check is based on the Hostname, which I agree is a little too simplistic. From your screenshot we can see that both are using Ubuntu.

For now, can you please try a different hostname for each device. I will raise a ticket to get that check made a little more robust in the future.

Thanks,

Michael

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5

Ok, where do you think is the best place to set the hostname if I want CLI-free startup?

6

Either a config snap (if you have one) or perhaps the gadget (from a hook) … The hostname-control interface should give you access to hostnamectl…

7

We are now using guids in the gadget’s prepare-device hook to set the serial.

Could I set the hostname in the prepare-device hook too? And does it make sense to just set it to the guid? (although not very user friendly, it has to be unique so…)

8

sure, you just need to add the plug to its definition in your snapcraft.yaml (and indeed make sure it is connected)

9

Awesome, and thanks for the reminder that I need to enable the interface in the UI!