Add `end_users` field to `List hosts` API endpoint

[spalmesano0]

• customer-pingali: Slack thread.

  • could we create a request to add the end_users list to the list_hosts endpoint? It would prevent us from needing to call get_host for every device individually.

  • We do need this feature somewhat urgently, as this is how we determine which devices are enrolled to which users.

  • It would be optimal to have all the data available in both list and get host endpoints. And also for it to be the same across platforms.

• Unpacked: TODO: Head of Product Design (HPD) checks this box when the request goes through "Unpacking the why": https://fleetdm.com/handbook/product-design#unpacking-the-why

• Gong snippet: TODO

pingali is requesting us to have uniformity between the two endpoints (List hosts and Get host), as they were previously using device_mapping.

They're currently running into an issue where the IdP username/email for end users is not being populated in the device_mapping field of the List hosts API endpoint for Windows devices (I'll open a bug report for that soon).

[hslatman]

Hey @spalmesano0, I'm interested in this functionality too for a mutual customer here at Smallstep.

I tried supplying the device_mapping parameter (as referenced, and after checking #33811), but that didn't return the IdP user details, whereas those details do seem to exist when retrieving a single host by ID in the end_users property. Is it possible I'm hitting the same issue as in #45066? I'm seeing this behavior with a Mac.

Whipped up a quick (and incomplete) draft PR at https://github.com/hslatman/fleet/pull/1/changes.

[spalmesano0]

Hey @spalmesano0, I'm interested in this functionality too for a mutual customer here at Smallstep.
...
Whipped up a quick (and incomplete) draft PR at https://github.com/hslatman/fleet/pull/1/changes.

@hslatman Thank you! When you've tested that and it's ready, it would be worth opening a PR in our repo that references this request.

I tried supplying the device_mapping parameter (as referenced, and after checking #33811), but that didn't return the IdP user details, whereas those details do seem to exist when retrieving a single host by ID in the end_users property. Is it possible I'm hitting the same issue as in #45066? I'm seeing this behavior with a Mac.

It could be that it's the same bug. I'm going to pull this discussion over to that issue.