Closes-Bug: #1363325
Issue: recursive tasks called for same storage nodes again
       caused the installation failure
Fix: env.host_string is used to avoid recursive task call

Change-Id: I910ef8d4251ff22a2126bf976a3ec1c1ec34372a
Closes-Bug: #1365103
Issue: fab run commands are invoked using private network
Fix: changed to use mgmt network for configuration

Change-Id: I9e3ad3ebc003abaf548bbcc2a0fe3c79f5bbf59e
Merge "Closes-Bug: #1363325 Issue: recursive tasks called for same storage nodes again        caused the installation failure Fix: env.host_string is used to avoid recursive task call"
Merge "Closes-Bug: #1365103 Issue: fab run commands are invoked using private network Fix: changed to use mgmt network for configuration"
Merge remote-tracking branch 'upstream/master'