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We have published some documentation and tooling to get started on adding new secret detectors. Let's improve detection together!
Use fields over format strings. For structured logging, fields allow us to better filter and search through logs than embedding data in the message.
Differentiate logs coming from dependencies. This can be done with a "dep" field that gets passed to the library. Sometimes it’s not possible to do this.
Limit log levels to info (indicate normal or expected operation) and error (functionality is impeded and should be checked by an engineer)
Choose an appropriate verbosity level
0. — logs we always want to see
1. — logs we could possibly want to turn off
2. — logs that are useful for debugging
3. — frequently called logs that may produce a lot of output
4. — extremely verbose logs or logs containing sensitive information
5. — ultimate verbosity
Example: Logger().V(2).Info("skipping file: extension is ignored", "ext", mimeExt)
Either log an error or return it. Doing one or the other will help defer logging for when there is more context for it and prevent duplicate “bubbling up” logs.
Log contextual information. Every log emitted should contain this context via fields to easily filter and search.