wip - refactor - agent matrix work

[nammn]

Summary

This pull request introduces significant changes to the MongoDB operator codebase, focusing on improving the handling of static and non-static architectures, simplifying configuration, and updating tests to reflect the new architecture. The most important changes are grouped into architecture handling, configuration updates, and test adjustments.

Architecture Handling:

• Introduced separate functions for building pod templates for static and non-static architectures, improving modularity and clarity (buildStaticArchitecturePodTemplateSpec and buildNonStaticArchitecturePodTemplateSpec in database_construction.go).
• Updated the shared database configuration to remove architecture-specific logic, delegating it to the newly introduced architecture-specific functions.

Configuration Updates:

• Renamed InitDatabaseNonStaticImage to InitDatabaseImage in DatabaseStatefulSetOptions for clarity and consistency. [1] [2]
• Simplified the handling of ShareProcessNamespace by using a pointer utility function (ptr.To(true)) instead of manually creating a boolean pointer.

Test Adjustments:

• Updated tests for various cluster types (e.g., replica set, sharded, standalone) to account for the addition of a third container in the static architecture. [1] [2] [3] [4]

Code Cleanup:

• Removed unused versionutil import and associated logic for appending the operator version to the agent version. [1] [2]

Miscellaneous:

• Added TODO comments for probes to address static architecture compatibility in the future.

Proof of Work

Checklist

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