qa: ceph.py mkfs.ext4 has no -f

Addresses probable issue:

  mkfs.ext4: invalid option -- 'f'

Fixes: https://tracker.ceph.com/issues/10797

Signed-off-by: Kyr Shatskyy <[email protected]>

Author: kshtsk

qa/tasks/ceph.py

@@ -990,7 +990,9 @@ def cluster(ctx, config):
                 try:
                     remote.run(args=['yes', run.Raw('|')] + ['sudo'] + mkfs + [dev])
                 except run.CommandFailedError:
-                    # Newer btfs-tools doesn't prompt for overwrite, use -f
+                    if fs != 'btrfs':
+                        raise
+                    # Newer btrfs-tools doesn't prompt for overwrite, use -f
                     if '-f' not in mount_options:
                         mkfs_options.append('-f')
                         mkfs = ['mkfs.%s' % fs] + mkfs_options