GitLab Repo DORA Metrics

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Overview

This module uses GitLab’s GraphQL API to calculate core DevOps performance metrics for a single repository. It gathers merge request and incident data in bulk and produces structured time-series results.

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Authentication & Permissions

• Personal Access Token (PAT)
  • Required scope: api
  • Optional: read_repository, read_api, read_user
• Self-Managed Instances
  • Use your instance’s base URL (e.g., https://gitlab.example.com)
  • Ensure network rules allow API access

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Metrics

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Deployment Frequency

• Count of merge requests merged in the date range where the last pipeline status is SUCCESS.

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Lead Time for Changes

• Average time from merge request creation to merge, based on MR timestamps.

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Change Failure Rate

• Proportion of merge requests whose last pipeline status is FAILED.

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Mean Time to Recovery (MTTR)

• Average time to close issues labeled incident.

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First Review Time

• Average time from merge request creation to the first non-system note.

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First Approval Time

• Average time from merge request creation to the first approval note.

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First-to-Last Approval Time

• Average interval between the first and last approval notes on each merge request.

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Last Approval-to-Merge Time

• Average duration from the final approval note to merge completion.

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Time to Open

• Average time between the earliest commit in the MR branch and its creation (zeroed if negative).

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Time to Merge

• Average duration from merge request creation to merge completion.