Improve resiliency of build pickingimprove-ci-redis-queueing

Every time we pick a new build, or we get into conflict we force runner to retry the operation to make sure that all builds are being picked.

It makes us to loose one request, but also makes sure that we are consistent.

It is fair trade, as number of generated builds is relatively small 0.1% compared to the traffic.

1 files changed, 8 insertions, 0 deletions

diff --git a/lib/ci/api/helpers.rb b/lib/ci/api/helpers.rb
index 996990b464f..868a9cdec70 100644
--- a/lib/ci/api/helpers.rb
+++ b/lib/ci/api/helpers.rb
@@ -79,6 +79,14 @@ module Ci
       def max_artifacts_size
         current_application_settings.max_artifacts_size.megabytes.to_i
       end
+
+      def get_runner_version
+        params.fetch('info', {}).fetch('version', "unknown")
+      end
+
+      def header_last_update(value)
+        header 'X-GitLab-Last-Update', value
+      end
     end
   end
 end