Fix guards to not execute commands on every failure [1/1]

Merging from mesa-1.6:

Fixed the guards so that the commands are not executed when any failure of the quantum CLI tool occurs.

This addresses DE1387: Dashboard: Can't assign more than one floating ip, which results from multiple "floating" networks being created because of intermittent quantum CLI tool failures.

While this pull request does not address the intermittent CLI tool failures, it does make the code much more robust by only attempting to execute the command if we can positively verify that the object that we are querying for does not exist.


 .../cookbooks/quantum/recipes/post_install_conf.rb |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

Crowbar-Pull-ID: f36595044def1e1cadcd2a24f0aaefe40b5bfbb0

Crowbar-Release: pebbles