refactor(CSI-305): change mount Map logic for WEKAFS to align with NFS and support same fs name on SCMC

[sergeyberezansky]

TL;DR

Refactored mount handling to improve container name management and mount reference counting.

What changed?

• Added container name caching to ApiClient
• Introduced EnsureLocalContainer method to handle container name resolution
• Simplified mount reference counting using a flat map structure
• Added utility function to extract container names from mount points
• Fixed duplicate reference count increment in NFS mounting
• Added comprehensive test coverage for container name extraction
• Improved logging for mount operations and debugging

How to test?

1. Test mounting filesystems with different container configurations
2. Verify container name extraction from mount points using the new test cases
3. Check mount reference counting behavior with multiple mount/unmount operations
4. Validate logging output for mount operations
5. Test compatibility with both legacy and new mounting scenarios

Why make this change?

• Improves reliability of container name handling in multi-cluster environments
• Simplifies mount reference counting logic to prevent memory leaks
• Enhances debugging capabilities through better logging
• Reduces code duplication and potential race conditions
• Makes the codebase more maintainable and testable

[sergeyberezansky]

• refactor(CSI-305): change mount Map logic for WEKAFS to align with NFS and support same fs name on SCMC #383 👈
• feat(CSI-300): add arm64 support #379
• feat(CSI-303): add livenessProbe to attacher sidecar #382
• feat(CSI-302): convert controller StatefulSet to Deployment #381
• feat(CSI-301): bump locar to version 0.4.2 #380
• dev

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"Request reviewers once CI passes" took an action on this PR • (10/31/24)

1 reviewer was added to this PR based on Sergey Berezansky's automation.