isoname now impacts the iso fs label

builder/kojid

@@ -2531,10 +2531,16 @@ class LiveCDTask(ImageTask):
         kspath = self.fetchKickstart(broot, ksfile)
         kskoji = self.prepareKickstart(repo_info, target_info, arch, broot, kspath)
 
-        # Run livecd-creator
         cachedir = '/tmp/koji-livecd'   # arbitrary paths in chroot
         livecd_log = '/tmp/livecd.log'
         cmd = ['/usr/bin/livecd-creator', '-c', kskoji, '-d', '-v', '--logfile', livecd_log, '--cache', cachedir]
+        # we set the fs label to the same as the isoname if it exists, 
+        # taking at most 32 characters
+        name_opt = self.opts.get('isoname')
+        if name_opt:
+            cmd.extend(('-f', name_opt[:32]))
+
+        # Run livecd-creator
         rv = broot.mock(['--cwd', '/tmp', '--chroot', '--'] + cmd)
         self.uploadFile(os.path.join(broot.rootdir(), livecd_log[1:]))
         if rv:
@@ -2571,8 +2577,8 @@ class LiveCDTask(ImageTask):
         # copy the iso out of the chroot. If we were given an isoname, this is
         # where the renaming happens.
         self.logger.debug('uploading image: %s' % isosrc)
-        if self.opts.get('isoname'):
-            isofile = self.opts['isoname']
+        if name_opt:
+            isofile = name_opt
             if not isofile.endswith('.iso'):
                 isofile += '.iso'
         self.uploadFile(isosrc, remoteName=isofile)