Increase glance_num_retries for Glance and Cinder

Sometimes but very often, nova-compute fails to start a VM when using a
large RAW image from Glance (RBD driver).

After looking in the code, it looks like we could increase the number of
retries when downloading an image from Glance.

Closes-bug #505

manifests/compute.pp

@@ -129,6 +129,7 @@ class cloud::compute(
     'DEFAULT/resume_guests_state_on_host_boot': value => true;
     'DEFAULT/default_availability_zone':        value => $availability_zone;
     'DEFAULT/servicegroup_driver':              value => 'mc';
+    'DEFAULT/glance_num_retries':               value => '10';
   }
 
   # Note(EmilienM):

manifests/volume/api.pp

@@ -49,7 +49,8 @@ class cloud::volume::api(
 
   class { 'cinder::glance':
     glance_api_servers     => "${ks_glance_internal_host}:${ks_glance_api_internal_port}",
-    glance_request_timeout => '10'
+    glance_request_timeout => '10',
+    glance_num_retries     => '10'
   }
 
   @@haproxy::balancermember{"${::fqdn}-cinder_api":

spec/classes/cloud_compute_api_spec.rb

@@ -71,6 +71,7 @@ describe 'cloud::compute::api' do
       should contain_nova_config('DEFAULT/resume_guests_state_on_host_boot').with('value' => true)
       should contain_nova_config('DEFAULT/default_availability_zone').with('value' => 'MyZone')
       should contain_nova_config('DEFAULT/servicegroup_driver').with_value('mc')
+      should contain_nova_config('DEFAULT/glance_num_retries').with_value('10')
     end
 
     it 'configure neutron on compute node' do

spec/classes/cloud_compute_cert_spec.rb

@@ -61,6 +61,7 @@ describe 'cloud::compute::cert' do
       should contain_nova_config('DEFAULT/resume_guests_state_on_host_boot').with('value' => true)
       should contain_nova_config('DEFAULT/default_availability_zone').with('value' => 'MyZone')
       should contain_nova_config('DEFAULT/servicegroup_driver').with_value('mc')
+      should contain_nova_config('DEFAULT/glance_num_retries').with_value('10')
     end
 
     it 'configure neutron on compute node' do

spec/classes/cloud_compute_conductor_spec.rb

@@ -61,6 +61,7 @@ describe 'cloud::compute::conductor' do
       should contain_nova_config('DEFAULT/resume_guests_state_on_host_boot').with('value' => true)
       should contain_nova_config('DEFAULT/default_availability_zone').with('value' => 'MyZone')
       should contain_nova_config('DEFAULT/servicegroup_driver').with_value('mc')
+      should contain_nova_config('DEFAULT/glance_num_retries').with_value('10')
     end
 
     it 'configure neutron on compute node' do

spec/classes/cloud_compute_consoleauth_spec.rb

@@ -61,6 +61,7 @@ describe 'cloud::compute::consoleauth' do
       should contain_nova_config('DEFAULT/resume_guests_state_on_host_boot').with('value' => true)
       should contain_nova_config('DEFAULT/default_availability_zone').with('value' => 'MyZone')
       should contain_nova_config('DEFAULT/servicegroup_driver').with_value('mc')
+      should contain_nova_config('DEFAULT/glance_num_retries').with_value('10')
     end
 
     it 'configure neutron on compute node' do

spec/classes/cloud_compute_consoleproxy_spec.rb

@@ -66,6 +66,7 @@ describe 'cloud::compute::consoleproxy' do
       should contain_nova_config('DEFAULT/resume_guests_state_on_host_boot').with('value' => true)
       should contain_nova_config('DEFAULT/default_availability_zone').with('value' => 'MyZone')
       should contain_nova_config('DEFAULT/servicegroup_driver').with_value('mc')
+      should contain_nova_config('DEFAULT/glance_num_retries').with_value('10')
     end
 
     it 'configure neutron on compute node' do

spec/classes/cloud_compute_controller_spec.rb

@@ -72,6 +72,7 @@ describe 'cloud::compute::controller' do
       should contain_nova_config('DEFAULT/resume_guests_state_on_host_boot').with('value' => true)
       should contain_nova_config('DEFAULT/default_availability_zone').with('value' => 'MyZone')
       should contain_nova_config('DEFAULT/servicegroup_driver').with_value('mc')
+      should contain_nova_config('DEFAULT/glance_num_retries').with_value('10')
     end
 
     it 'configure neutron on compute node' do

spec/classes/cloud_compute_hypervisor_spec.rb

@@ -97,6 +97,7 @@ describe 'cloud::compute::hypervisor' do
       should contain_nova_config('DEFAULT/resume_guests_state_on_host_boot').with('value' => true)
       should contain_nova_config('DEFAULT/default_availability_zone').with('value' => 'MyZone')
       should contain_nova_config('DEFAULT/servicegroup_driver').with_value('mc')
+      should contain_nova_config('DEFAULT/glance_num_retries').with_value('10')
     end
 
     it 'configure neutron on compute node' do

spec/classes/cloud_compute_scheduler_spec.rb

@@ -61,6 +61,7 @@ describe 'cloud::compute::scheduler' do
       should contain_nova_config('DEFAULT/resume_guests_state_on_host_boot').with('value' => true)
       should contain_nova_config('DEFAULT/default_availability_zone').with('value' => 'MyZone')
       should contain_nova_config('DEFAULT/servicegroup_driver').with_value('mc')
+      should contain_nova_config('DEFAULT/glance_num_retries').with_value('10')
     end
 
     it 'configure neutron on compute node' do

spec/classes/cloud_volume_controller_spec.rb

@@ -110,7 +110,8 @@ describe 'cloud::volume::controller' do
     it 'configure cinder glance backend' do
       should contain_class('cinder::glance').with(
           :glance_api_servers     => '10.0.0.2:9292',
-          :glance_request_timeout => '10'
+          :glance_request_timeout => '10',
+          :glance_num_retries     => '10'
         )
     end