Logger instrumentation #4063
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Logger instrumentation #4063
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Codecov ReportAttention:
Additional details and impacted files@@ Coverage Diff @@
## main #4063 +/- ##
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+ Coverage 82.84% 82.96% +0.11%
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Files 222 230 +8
Lines 28330 28710 +380
==========================================
+ Hits 23471 23820 +349
- Misses 4859 4890 +31
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Status: Blocked
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Blocked on #4047 |
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wearyzen
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Oct 25, 2023
kalyazin
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- It would nice to have a Firecracker-level integration test that verifies that instrumentation works for Firecracker specifically, not only on its own.
- I can see some uncovered lines in the codecov report. Specifically
actionandexcludeinCommandLineArgs. Are there reasons for them and others not to be covered?
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There are tests covering all the I've added a test to cover |
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I think all comments are addressed but before merge, could you please confirm and resolve all comments from Nikita. |
added 5 commits
November 6, 2023 13:25
`log_path` is no longer required by the `/logger` API. Removes `log_path` from `required:` in the `firecracker.yaml` swagger specification for the API. Signed-off-by: Jonathan Woollett-LIght <[email protected]>
Adds a module filter to the logger. This allows a user at runtime to filter log messages by the Rust source code crate and module from which they originate. Signed-off-by: Jonathan Woollett-Light <[email protected]>
Adds a crate (`log-instrument`) with an instrumentation macro. Adds a binary (`clippy-tracing`) to add, remove and check for instrumentation. Signed-off-by: Jonathan Woollett-Light <[email protected]>
Add `tracing.md` to document how to use the instrumentation to trace the Firecracker process. Signed-off-by: Jonathan Woollett-Light <[email protected]>
Added an entry in the change log on adding tracing. Signed-off-by: Jonathan Woollett-Light <[email protected]>
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JonathanWoollett-Light
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firecracker-microvm:main
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Changes
Adds support for tracing the Firecracker process with logs.
See https://github.com/JonathanWoollett-Light/firecracker/blob/logger-instrumentation/docs/tracing.md
ls -l ./build/cargo_target/release/firecrackerThe change in binary size from 9,941kb to 9,949kb of 8kb is a result of
feat: Add module filter.Follow-up issues to add CI test: #4215
Reason
It is a valuable feature when debugging, especially in restricted environments where it may be difficult to run another process like
strace.License Acceptance
By submitting this pull request, I confirm that my contribution is made under
the terms of the Apache 2.0 license. For more information on following
Developer Certificate of Origin and signing off your commits, please check
CONTRIBUTING.md.PR Checklist
CHANGELOG.md.TODOs link to an issue.rust-vmm.