Minor refactor to GCP service classes

- Split logger call for readibility
- Reduce code duplication by adding new method

app/services/clusters/gcp/fetch_operation_service.rb

@@ -11,7 +11,13 @@ module Clusters
 
         yield(operation) if block_given?
       rescue Google::Apis::ServerError, Google::Apis::ClientError, Google::Apis::AuthorizationError => e
-        logger.error(exception: e.class.name, service: self.class.name, provider_id: provider.id, message: e.message)
+        logger.error(
+          exception: e.class.name,
+          service: self.class.name,
+          provider_id: provider.id,
+          message: e.message
+        )
+
         provider.make_errored!("Failed to request to CloudPlatform; #{e.message}")
       end
 

app/services/clusters/gcp/finalize_creation_service.rb

@@ -16,22 +16,18 @@ module Clusters
         ClusterPlatformConfigureWorker.perform_async(cluster.id)
 
       rescue Google::Apis::ServerError, Google::Apis::ClientError, Google::Apis::AuthorizationError => e
-        logger.error(exception: e.class.name, service: self.class.name, provider_id: provider.id, message: e.message)
+        log_service_error(e.class.name, provider.id, e.message)
         provider.make_errored!("Failed to request to CloudPlatform; #{e.message}")
       rescue Kubeclient::HttpError => e
-        logger.error(exception: e.class.name, service: self.class.name, provider_id: provider.id, message: e.message)
+        log_service_error(e.class.name, provider.id, e.message)
         provider.make_errored!("Failed to run Kubeclient: #{e.message}")
       rescue ActiveRecord::RecordInvalid => e
-        logger.error(exception: e.class.name, service: self.class.name, provider_id: provider.id, message: e.message)
+        log_service_error(e.class.name, provider.id, e.message)
         provider.make_errored!("Failed to configure Google Kubernetes Engine Cluster: #{e.message}")
       end
 
       private
 
-      def logger
-        @logger ||= Gitlab::Kubernetes::Logger.build
-      end
-
       def create_gitlab_service_account!
         Clusters::Gcp::Kubernetes::CreateOrUpdateServiceAccountService.gitlab_creator(
           kube_client,
@@ -112,6 +108,19 @@ module Clusters
       def cluster
         @cluster ||= provider.cluster
       end
+
+      def logger
+        @logger ||= Gitlab::Kubernetes::Logger.build
+      end
+
+      def log_service_error(exception, provider_id, message)
+        logger.error(
+          exception: exception.class.name,
+          service: self.class.name,
+          provider_id: provider_id,
+          message: message
+        )
+      end
     end
   end
 end