Observe duration of each pipeline creation step
What does this MR do?
This MR adds instrumentation to track and graph the duration in seconds of each pipeline creation step in ::Ci::CreatePipelineService::SEQUENCE. Each class in the sequence is tracked as a separate step.
Issue
Documentation
Details about the new histograms will be added to https://docs.gitlab.com/ee/administration/monitoring/prometheus/gitlab_metrics.html#metrics-available once this MR is merged and we can confirm that the histograms are working as expected.
Edited by Avielle Wolfe