feat: implement PreheatImage and StatImage for scheduler

[gaius-qi]

Description

This pull request introduces a series of updates to dependencies, logging utilities, and the preheating functionality for container images. Key changes include dependency updates in go.mod, the addition of new logging methods, a refactor of the image preheating logic to use a new ManifestRequest structure, and the removal of an unused configuration parameter. These changes improve maintainability, functionality, and code clarity.

Dependency Updates:

• Updated several dependencies in go.mod, including d7y.io/api/v2 to v2.1.55, google.golang.org/grpc to v1.74.2, and cel.dev/expr to v0.24.0. These updates ensure compatibility with the latest versions of external libraries. [1] [2] [3] [4] [5]

Logging Enhancements:

• Added new logging methods (WithPreheatImage, WithStatImage, and WithStatImageAndTaskID) in internal/dflog/logger.go to enhance flexibility in logging specific operations.

Preheating Refactor:

• Introduced a new ManifestRequest structure in internal/job/image.go to encapsulate preheating parameters, replacing the previous PreheatArgs. This refactor simplifies the function signatures and improves readability. [1] [2]
• Refactored the CreatePreheatRequestsByManifestURL function to use the new ManifestRequest structure and updated related logic for building preheat requests. [1] [2] [3]

Testing and Mocking:

• Updated tests in internal/job/image_test.go to align with the new ManifestRequest structure. [1] [2] [3]
• Added a mock for the Image interface in internal/job/mocks/job_mock.go to facilitate unit testing.

Configuration Cleanup:

• Removed the unused RegistryTimeout parameter from the PreheatConfig in manager/config/config.go, simplifying configuration management. [1] [2] [3]

Related Issue

Motivation and Context

Screenshots (if appropriate)

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation Update (if none of the other choices apply)

Checklist

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.

[codecov]

Codecov Report

❌ Patch coverage is 60.62847% with 213 lines in your changes missing coverage. Please review.
✅ Project coverage is 32.90%. Comparing base (c0c8763) to head (4b41e27).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
scheduler/job/job.go	0.00%	91 Missing ⚠️
manager/service/job.go	0.00%	29 Missing ⚠️
scheduler/rpcserver/scheduler_server_v2.go	3.33%	29 Missing ⚠️
manager/job/preheat.go	0.00%	25 Missing ⚠️
manager/job/task.go	0.00%	11 Missing ⚠️
manager/job/sync_peers.go	0.00%	7 Missing ⚠️
pkg/rpc/credential.go	0.00%	6 Missing ⚠️
manager/job/job.go	0.00%	5 Missing ⚠️
scheduler/service/service_v2.go	98.59%	2 Missing and 1 partial ⚠️
internal/job/image.go	93.10%	1 Missing and 1 partial ⚠️
... and 3 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4246      +/-   ##
==========================================
+ Coverage   32.51%   32.90%   +0.39%     
==========================================
  Files         350      352       +2     
  Lines       41382    41781     +399     
==========================================
+ Hits        13456    13750     +294     
- Misses      27035    27139     +104     
- Partials      891      892       +1     

Flag	Coverage Δ
unittests	32.90% <60.62%> (+0.39%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
internal/dflog/logger.go	57.02% <100.00%> (+2.24%)	⬆️
internal/job/mocks/job_mock.go	100.00% <100.00%> (ø)
manager/config/config.go	96.41% <100.00%> (-0.06%)	⬇️
pkg/net/tls/cert.go	100.00% <100.00%> (ø)
scheduler/job/mocks/job_mock.go	87.50% <100.00%> (+87.50%)	⬆️
scheduler/metrics/metrics.go	10.89% <ø> (ø)
scheduler/resource/standard/seed_peer.go	23.28% <100.00%> (ø)
scheduler/rpcserver/rpcserver.go	100.00% <100.00%> (ø)
scheduler/service/service_v1.go	85.32% <100.00%> (-0.02%)	⬇️
scheduler/scheduler.go	0.00% <0.00%> (ø)
... and 12 more

... and 2 files with indirect coverage changes

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[LunaWhispers]

lgtm

[chlins]

lgtm

[chlins]

lgtm

[LunaWhispers]

lgtm