Fix gnocchi installation for Newton

- Remove hardcoded old package version, always upgrade to latest
  version instead
- Install python-gnocchiclient needed by ceilometer in order to access
  the gnocchi backend

Change-Id: I6f6af90d3107df86bd0abbaacfca0836f7771cfe

attributes/default.rb

@@ -108,7 +108,7 @@ when 'rhel'
 when 'debian'
   default['openstack']['telemetry']['platform'] = {
     'common_packages' => ['ceilometer-common'],
-    'gnocchi_packages' => ['python-gnocchi', 'gnocchi-common', 'gnocchi-api', 'gnocchi-metricd'],
+    'gnocchi_packages' => ['python-gnocchi', 'gnocchi-common', 'gnocchi-api', 'gnocchi-metricd', 'python-gnocchiclient'],
     'gnocchi-api_service' => 'gnocchi-api',
     'gnocchi-metricd_service' => 'gnocchi-metricd',
     'agent_central_packages' => ['ceilometer-agent-central'],

recipes/gnocchi_install.rb

@@ -22,7 +22,7 @@ platform = node['openstack']['telemetry']['platform']
 platform['gnocchi_packages'].each do |pkg|
   package pkg do
     options platform['package_overrides']
-    version '2.0.2-4'
+    action :upgrade
   end
 end
 # stop and disable the service gnocchi-api_service itself, since it should be run inside

spec/gnocchi_install_spec.rb

@@ -11,7 +11,7 @@ describe 'openstack-telemetry::gnocchi_install' do
     include_context 'telemetry-stubs'
 
     it do
-      expect(chef_run).to install_package 'gnocchi-api'
+      expect(chef_run).to upgrade_package 'gnocchi-api'
     end
 
     it do
@@ -20,7 +20,7 @@ describe 'openstack-telemetry::gnocchi_install' do
     end
 
     it do
-      expect(chef_run).to install_package 'gnocchi-metricd'
+      expect(chef_run).to upgrade_package 'gnocchi-metricd'
     end
   end
 end