Cache frequently used Maven packages using the Gitlab Dependency Proxy

Problem to solve

A similar proxy layer to https://gitlab.com/gitlab-org/gitlab-ee/issues/7934 should be created for Maven packages as part of our MVC efforts for &486 (closed)

Target audience

• Software Developer
• DevOps Engineer
• Systems Administrator
• Security Analyst

Further details

This could possibly be implemented in pieces:

1. Add proxy ability to connect to and pull from maven's standard public open source registry
2. Add caching ability to store the pulled packages in object storage or other location
3. Determine which private registries are most popular and iterate to authenticate and connect to them one at a time.

Proposal

What does success look like, and how can we measure that?

Acceptance criteria

Success metrics

Links / references

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