Mask passwords with iscsiadm commands

This patch adds the fix that exists in the nova
libvirt volume code to use oslo_utils strutils
to mask passwords that might show up in debug log
messages.

Change-Id: I632eb4d71588736ab21327824d0506c13f3933ae
Closes-Bug: 1445137

os_brick/initiator/connector.py

@@ -30,6 +30,7 @@ import time
 from oslo_concurrency import lockutils
 from oslo_concurrency import processutils as putils
 from oslo_log import log as logging
+from oslo_utils import strutils
 import six
 
 S390X = "s390x"
@@ -451,8 +452,11 @@ class ISCSIConnector(InitiatorConnector):
                                    *iscsi_command, run_as_root=True,
                                    root_helper=self._root_helper,
                                    check_exit_code=check_exit_code)
-        LOG.debug("iscsiadm %(iscsi_command)s: stdout=%(out)s stderr=%(err)s",
+        msg = ("iscsiadm %(iscsi_command)s: stdout=%(out)s stderr=%(err)s",
                {'iscsi_command': iscsi_command, 'out': out, 'err': err})
+        # don't let passwords be shown in log output
+        LOG.debug(strutils.mask_password(msg))
+
         return (out, err)
 
     def _iscsiadm_update(self, connection_properties, property_key,

requirements.txt

@@ -10,4 +10,5 @@ oslo.log>=1.0.0,<1.1.0
 oslo.rootwrap>=1.3.0
 oslo.serialization>=1.2.0
 oslo.i18n>=1.0.0
+oslo.utils>=1.4.0,<1.5.0
 six>=1.7.0