shutdown before uploading disk images

Summary:
I believe the failures in the Server DVD chained Base tests are
happening because the VM is not cleanly shut down before the disk
image is uploaded. This adds a shutdown step to all tests that
upload a disk image (so, for now, just default_install). To keep
things simple it just runs 'shutdown' from a root console, rather
than using graphical desktop shutdown methods, as the aim is only
to make the disk state clean, not to test shutdown exactly.

I've tested this on staging; a Server DVD test run with this
change produced a full set of passed tests, as opposed to all
the Base tests failing because the system didn't boot properly.
Workstation and KDE tests seem to work fine also.

For the record, SUSE does much the same thing as this commit.

Test Plan:
Do a full test run and make sure everything that worked
before still does. Check that all default_install tests have a
_console_shutdown step added, and it works, and all chained tests
work (or fail for some unrelated reason, but make sure this
doesn't break them).

Reviewers: jskladan, garretraziel

Reviewed By: garretraziel

Subscribers: tflink

Differential Revision: https://phab.qadevel.cloud.fedoraproject.org/D787

main.pm

@@ -192,6 +192,10 @@ else
     if (get_var("UEFI")) {
         autotest::loadtest "tests/uefi_postinstall.pm";
     }
+    # we should shut down before uploading disk images
+    if (get_var("STORE_HDD_1") || get_var("PUBLISH_HDD_1")) {
+        autotest::loadtest "tests/_console_shutdown.pm";
+    }
 }
 
 

tests/_console_shutdown.pm

@@ -0,0 +1,32 @@
+use base "installedtest";
+use strict;
+use testapi;
+
+sub run {
+    my $self = shift;
+    # this shutdown code is only to make sure the guest disk is clean
+    # before uploading an image of it, we're really not "testing"
+    # shutdown here. So to keep things simple and reliable, we do not
+    # use the desktops' graphical shutdown methods, we just go to a
+    # console and run 'poweroff'. We can write separate tests for
+    # properly testing shutdown/reboot/log out from desktops.
+    $self->root_console(tty=>3, check=>0);
+    script_run("poweroff", 0);
+    assert_shutdown;
+}
+
+# this is not 'fatal' or 'important' as all wiki test cases are passed
+# even if shutdown fails. we should have a separate test for shutdown/
+# logout/reboot stuff, might need some refactoring.
+sub test_flags {
+    # without anything - rollback to 'lastgood' snapshot if failed
+    # 'norollback' - don't rollback if failed
+    # 'fatal' - whole test suite is in danger if this fails
+    # 'milestone' - after this test succeeds, update 'lastgood'
+    # 'important' - if this fails, set the overall state to 'fail'
+    return {'norollback' => 1};
+}
+
+1;
+
+# vim: set sw=4 et: