I'm deploying a Suse OpenStack Cloud 5 but facing a proxy problem.

If I activate my proxy settings, without forgetting to add my administration server's ip & hostname in the "no proxy" part :
--> The install-suse-cloud script seems to avoid the "no proxy" configuration in the chef "knife" part :

Where should I put the config file? [/root/.chef/knife.rb]
Please enter the chef server URL: [http://suse01a.local:4000]
Please enter a clientname for the new client: [root]
Please enter the existing admin clientname: [chef-webui]
Please enter the location of the existing admin client's private key: [/etc/chef/webui.pem]
Please enter the validation clientname: [chef-validator]
Please enter the location of the validation key: [/etc/chef/validation.pem]
Please enter the path to a chef repository (or leave blank): Creating initial API user...
ERROR: Server returned error for http://suse01a.local:4000/clients, retrying 1/5 in 4s
From this step, a wget http://suse01a.local:4000/clients will return a good request

If I deactivate my proxy settings, the knife part is ok but as I'm running without my proxy, in this case zypper seems to fail somewhere...

[2015-06-24T17:32:04+02:00] ERROR: Running exception handlers
[2015-06-24T17:32:04+02:00] FATAL: Saving node information to /var/chef/cache/failed-run-data.json
[2015-06-24T17:32:04+02:00] ERROR: Exception handlers complete
[2015-06-24T17:32:04+02:00] FATAL: Stacktrace dumped to /var/chef/cache/chef-stacktrace.out
[2015-06-24T17:32:04+02:00] FATAL: Chef::Exceptions::Package: package[rsyslog] (logging::server line 17) had an error: Chef::Exceptions::Package: zypper failed - #<Process::Status: pid 4438 exit 4>!

Somebody ?

Thank you by advance,