[Linux] Skip vmtoolsd and vgauthd status checking when they are upheld in Flatcar

[keirazhang]

While testing Flatcar Stable 3760.2.0, we found that the default status of vmtoolsd.service and vgauthd.service were disabled, but they could start at boot. That is because they are started via a dependency in
/usr/lib/systemd/system/multi-user.target.d/open-vm-tools-sysext-upholds.conf. flatcar/Flatcar#1330 (comment) explains this change.

So in our test cases, we need to checking whether vmtoolsd and vgauthd are in upholds of systemd unit multi-user.target for Flatcar. If they are in upholds, we can ignore their service status, no matter they are enabled or disabled.

[keirazhang]

Test results:

VM information:
+------------------------------------------------------------------------------------------------------+
| Name                      | test_vm                                                                  |
+------------------------------------------------------------------------------------------------------+
| Guest OS Distribution     | Flatcar 3815.2.0 x86_64                                                  |
+------------------------------------------------------------------------------------------------------+
| IP                        | 
+------------------------------------------------------------------------------------------------------+
| GUI Installed             | False                                                                    |
+------------------------------------------------------------------------------------------------------+
| CloudInit Version         |                                                                          |
+------------------------------------------------------------------------------------------------------+
| Hardware Version          | vmx-20                                                                   |
+------------------------------------------------------------------------------------------------------+
| VMTools Version           | 12.3.5 (build-22544099)                                                  |
+------------------------------------------------------------------------------------------------------+
| Config Guest Id           | other3xLinux64Guest                                                      |
+------------------------------------------------------------------------------------------------------+
| GuestInfo Guest Id        | other6xLinux64Guest                                                      |
+------------------------------------------------------------------------------------------------------+
| GuestInfo Guest Full Name | Other 6.x or later Linux (64-bit)                                        |
+------------------------------------------------------------------------------------------------------+
| GuestInfo Guest Family    | linuxGuest                                                               |
+------------------------------------------------------------------------------------------------------+
| GuestInfo Detailed Data   | architecture='X86'                                                       |
|                           | bitness='64'                                                             |
|                           | buildNumber='2024-02-12-2039'                                            |
|                           | cpeString='cpe:2.3:o:flatcar-linux:flatcar_linux:3815.2.0:*:*:*:*:*:*:*' |
|                           | distroAddlVersion='3815.2.0'                                             |
|                           | distroName='Flatcar Container Linux by Kinvolk'                          |
|                           | distroVersion='3815.2.0'                                                 |
|                           | familyName='Linux'                                                       |
|                           | kernelVersion='6.1.77-flatcar'                                           |
|                           | prettyName='Flatcar Container Linux by Kinvolk 3815.2.0 (Oklo)'          |
+------------------------------------------------------------------------------------------------------+

Test Results (Total: 2, Passed: 2, Elapsed Time: 00:01:45)
+------------------------------------------------+
| ID | Name                 | Status | Exec Time |
+------------------------------------------------+
|  1 | ovt_verify_status    | Passed | 00:00:48  |
|  2 | vgauth_check_service | Passed | 00:00:38  |
+------------------------------------------------+

[123lzxm]

LGTM, thanks.

[Tomorrow9]

LGTM, thanks!