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Increase HAProxy timeouts for Praefect to match maximum request duration

Will Chandler requested to merge wc-haproxy-praefect-timeout-increase into main

What does this MR do?

Some Gitaly operations may take up to 6 hours to complete. The default 30 minute timeout set for HAProxy may kill these long-running requests in cases where there is no network traffic sent during execution, such as when forking a repository.

This MR overrides the default timeouts for Praefect to 361 minutes, one minute longer than the longest potentially valid Gitaly request.

Related issues

Closes https://gitlab.com/gitlab-org/quality/gitlab-environment-toolkit/-/issues/290

Author's checklist

When ready for review, the Author applies the workflowready for review label and mention @gl-quality/get-maintainers:

  • Merge request:
    • Corresponding Issue raised and reviewed by the GET maintainers team.
    • Merge Request Title and Description are up to date, accurate, and descriptive
    • MR targeting the appropriate branch
    • MR has a green pipeline
  • Code:
    • Check the area changed works as expected. Consider testing it in different environment sizes (1k,3k,10k,etc.). with your new changes and ensure nothing will be destroyed. If anything will be destroyed and this can't be avoided please add a comment to the current MR.
  • Create any follow-up issue(s) to support the new feature across other supported cloud providers or advanced configurations. Create 1 issue for each provider/configuration. Contact the Quality Enablement team if unsure.
Edited by Will Chandler

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