[2.1] no way to know if discovery is completed

[Nobuto Murata]

It looks like there is no way to see the progress or completion of discoveries.
https://docs.ubuntu.com/maas/2.1/en/api#discoveries

I can start the scan as follows. But I couldn't find a way to know if it's completed or still in progress.

$ maas "$PROFILE" discoveries scan force=true
Success.
Machine-readable output follows:
{
    "failures": [],
    "result": "Scanning is in-progress on all rack controllers.",
    "scan_started_on": [
        {
            "system_id": "wss66g",
            "hostname": "maas01"
        }
    ],
    "scan_failed_on": [],
    "scan_attempted_on": [
        {
            "system_id": "wss66g",
            "hostname": "maas01"
        }
    ],
    "failed_to_connect_to": [],
    "rpc_call_timed_out_on": []
}

[Andres Rodriguez (andreserl)]

Hi Nobuto,

Scans are something MAAS does in the backend and it constantly does unless disabled. Forcing a scan will simply force the trigger of a scan, if for example, it is disabled, but again, is a continuous backend process.

I'm marking this as won't fix as we don't really have plans to provide such visibility, but I also want to ask whether there is a specific requirement to have this not be asynchronous?

[Nobuto Murata (nobuto)]

Understood. I just wanted to have a fresh discover result of my environment. So I cleared discovery result first, then re-run the scan explicitly. Some IP addresses are shown up in discovery, I was not sure the first scan has been completed or not.