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Dev: Add compare_migrations.sh

Jason Plum requested to merge debug-script-compare-migrations into master

What does this MR do?

Too often, we see issues in the pipelines related to database states. This script compares the migrations pod to the toolbox pod, providing a quick method to identify any drift which could cause failures related to state of the data models.

compare_migrations.sh RELEASE_NAME [NAMESPACE]

This relies on kubectl, yq, and skopeo.

Related issues

Related to #4135 (closed)

Checklist

See Definition of done.

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Required

  • Merge Request Title and Description are up to date, accurate, and descriptive
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Expected (please provide an explanation if not completing)

  • Test plan indicating conditions for success has been posted and passes
  • Documentation created/updated
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  • Validate potential values for new configuration settings. Formats such as integer 10, duration 10s, URI scheme://user:passwd@host:port may require quotation or other special handling when rendered in a template and written to a configuration file.
Edited by Mitchell Nielsen

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