Update the bundled NGINX chart

Clemens Beckrequested to merge
5719-nginx-update into master

What does this MR do?

  • Update the bundled NGINX chart from 1.3.1 to 1.12.2.
  • Add tooling to make updates more predictable and reproducable.

Changelog: changed

Related issues

Closes Update Nginx-Ingress Controller chart (#5719 - closed) • Clemens Beck • 18.2

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Required

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  • Merge Request Title and Description are up to date, accurate, and descriptive.
  • MR targeting the appropriate branch.
  • MR has a green pipeline.
  • Documentation created/updated.
  • Tests added/updated, and test plan for scenarios not covered by automated tests.
  • Equivalent MR/issue for omnibus-gitlab opened.

Reviewers checklist

Closes #5719 (closed)

Edited by Clemens Beck

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