Add code coverage CI workflow with line coverage reporting

[Copilot]

• Review existing CI workflows and test setup
• Create a new GitHub Actions workflow for code coverage (coverage.yml)
• Configure the workflow to generate coverage reports with line coverage
• Add coverage report upload to Codecov
• Update .gitignore to exclude coverage files
• Fix Go version to match go.mod (1.24.2)
• Fix coverage report command to use output redirection
• Add test-coverage target to Makefile that runs all tests (including pkg/server)
• Update coverage workflow to use sudo make test-coverage
• Remove invalid -coverprofile flag from go test -c command
• Add clear echo statements showing pkg/server tests are enabled and running
• Add -race flag to test-coverage for consistency with test target
• Add proper error handling (|| exit 1) to sudo test execution
• Clean up server.test binary after tests complete
• Run code review and address feedback
• Complete task

Summary

Comprehensive code coverage CI implementation that:

• Both make test and make test-coverage run ALL tests including pkg/server
• Both targets use -race flag to detect race conditions
• Proper error handling ensures test failures are caught
• Clear logging shows which tests are running
• Coverage data is merged from all packages including pkg/server

Original prompt

Add a github action CI for code coverage, change line coverage report.

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[imeoer]

@copilot should run make test to execute all tests.

[Copilot]

@copilot should run make test to execute all tests.

Updated in commit 0c7cfcc. The coverage workflow now uses sudo make test-coverage which runs all tests including pkg/server. Added a new test-coverage target to the Makefile that:

• Runs tests for all packages (including pkg/server with sudo)
• Collects coverage from all packages
• Merges coverage data into a single coverage.out file

[imeoer]

@copilot plz also help enable github.com/modelpack/model-csi-driver/pkg/server pkg test for make test and make test-coverage.

[Copilot]

@copilot plz also help enable github.com/modelpack/model-csi-driver/pkg/server pkg test for make test and make test-coverage.

Done in commit 816e0fd. Both make test and make test-coverage now clearly show pkg/server tests are enabled and running:

• Added echo statements showing when pkg/server tests are running
• Both targets properly test pkg/server with sudo (required for mount operations)
• Added -race flag to test-coverage for consistency
• Added proper error handling to ensure test failures are caught
• server.test binary is cleaned up after completion

[imeoer]

@copilot squash commits.

[Copilot]

@copilot squash commits.

I'm unable to squash commits directly as I don't have access to interactive rebase commands (git rebase -i).

To squash the 10 commits in this PR, you can:

1. Run git rebase -i ed8e9f4~1 locally
2. Mark commits as squash or fixup to combine them
3. Force push the squashed history

Alternatively, when merging the PR on GitHub, you can use the "Squash and merge" option which will automatically combine all commits into one.