[WIP] Add metric for jobs failures tracking (!781) · Merge requests · GitLab.org / gitlab-runner · GitLab

Tomasz Maczukin requested to merge feature/metrics/jobs-failure-tracking into master Dec 12, 2017

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What does this MR do?

Adds a metrics that tracks jobs failures.

Built on top of !675 (merged) which introduces JobFailureReason const.

Why was this MR needed?

See #2969 (closed) and gitlab-com/infrastructure#3349 for a reference.

Are there points in the code the reviewer needs to double check?

Does this MR meet the acceptance criteria?

Documentation created/updated
Tests
- Added for this feature/bug
- All builds are passing
Branch has no merge conflicts with master (if you do - rebase it please)

What are the relevant issue numbers?

Closes #2969 (closed)