Partial-Bug: #1649596

The contrail-openstack package installation is failing due to python2-cryptography
present in the upstream base repo. That package obsoletes the python-cryptography
which is what contrial package provides. Disable the obsolete check so that higher
priority repo package is installed. contrail repo is higher priority.
Leaving bug partial as this need to be fixed in fab as well.

Change-Id: I870991adbe227fddd872a8b8dde689c179b89c16

contrail/environment/modules/contrail/manifests/lib/contrail_setup_repo.pp

@@ -8,6 +8,13 @@
         file { "/etc/yum.repos.d/cobbler-config.repo" :
             ensure  => present,
             content => template("${module_name}/contrail-yum-repo.erb")
+        } ->
+        # add check_obsoletes flag off, for bug #1649596
+        exec { "/etc/yum/pluginconf.d/priorities.conf":
+            command => "echo 'check_obsoletes=1' >> /etc/yum/pluginconf.d/priorities.conf && echo exec-yum-priorities-fix >> /etc/contrail/exec-yum-pririties-fix.out",
+            provider => shell,
+            unless => "grep -qx exec-yum-priorities-fix /etc/contrail/exec-yum-pririties-fix.out",
+            logoutput => true
         }
     }
     if ($operatingsystem == "Ubuntu") {