From: Alfredo Deza <adeza@redhat.com>
Date: Thu, 12 Oct 2017 20:08:52 +0000 (-0400)
Subject: ceph-volume util.arg_validators allow to pass a group as --data for lvm
X-Git-Tag: v12.2.2~83^2~48
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=37a1564a41ba8ae6a89eb0903f0fdf6b463d90f0;p=ceph.git

ceph-volume util.arg_validators allow to pass a group as --data for lvm

Signed-off-by: Alfredo Deza <adeza@redhat.com>
(cherry picked from commit 211c38f591945dee53196068533784c385bae102)
---

diff --git a/src/ceph-volume/ceph_volume/util/arg_validators.py b/src/ceph-volume/ceph_volume/util/arg_validators.py
index feb4707165a5d..75ba5579e0bef 100644
--- a/src/ceph-volume/ceph_volume/util/arg_validators.py
+++ b/src/ceph-volume/ceph_volume/util/arg_validators.py
@@ -1,4 +1,5 @@
 import argparse
+import os
 
 
 class LVPath(object):
@@ -7,12 +8,20 @@ class LVPath(object):
 
         <vg name>/<lv name>
 
+    Or a full path to a device, like ``/dev/sda``
+
     Because for LVM it is better to be specific on what group does an lv
     belongs to.
     """
 
     def __call__(self, string):
         error = None
+        if string.startswith('/'):
+            if not os.path.exists(string):
+                error = "Argument (device) does not exist: %s" % string
+                raise argparse.ArgumentError(None, error)
+            else:
+                return string
         try:
             vg, lv = string.split('/')
         except ValueError: