Exclude service templates from usage ping data

lib/gitlab/usage_data.rb

@@ -178,7 +178,7 @@ module Gitlab
 
       # rubocop: disable CodeReuse/ActiveRecord
       def services_usage
-        service_counts = count(Service.active.where.not(type: 'JiraService').group(:type), fallback: Hash.new(-1))
+        service_counts = count(Service.active.where(template: false).where.not(type: 'JiraService').group(:type), fallback: Hash.new(-1))
 
         results = Service.available_services_names.each_with_object({}) do |service_name, response|
           response["projects_#{service_name}_active".to_sym] = service_counts["#{service_name}_service".camelize] || 0

spec/lib/gitlab/usage_data_spec.rb

@@ -18,6 +18,7 @@ describe Gitlab::UsageData do
       create(:service, project: projects[1], type: 'SlackService', active: true)
       create(:service, project: projects[2], type: 'SlackService', active: true)
       create(:service, project: projects[2], type: 'MattermostService', active: false)
+      create(:service, project: projects[2], type: 'MattermostService', active: true, template: true)
       create(:service, project: projects[2], type: 'CustomIssueTrackerService', active: true)
       create(:project_error_tracking_setting, project: projects[0])
       create(:project_error_tracking_setting, project: projects[1], enabled: false)