fleet/server/platform
Victor Lyuboslavsky aaac4b1dfe
Changes needed before gokit/log to slog transition. (#39527)
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**Related issue:** Resolves #38889

PLEASE READ BELOW before looking at file changes

Before converting individual files/packages to slog, we generally need
to make these 2 changes to make the conversion easier:
- Replace uses of `kitlog.With` since they are not fully compatible with
our kitlog adapter
- Directly use the kitlog adapter logger type instead of the kitlog
interface, which will let us have direct access to the underlying slog
logger: `*logging.Logger`

Note: that I did not replace absolutely all uses of `kitlog.Logger`, but
I did remove all uses of `kitlog.With` except for these due to
complexity:
- server/logging/filesystem.go and the other log writers (webhook,
firehose, kinesis, lambda, pubsub, nats)
- server/datastore/mysql/nanomdm_storage.go (adapter pattern)
- server/vulnerabilities/nvd/* (cascades to CLI tools)
- server/service/osquery_utils/queries.go (callback type signatures
cascade broadly)
- cmd/maintained-apps/ (standalone, so can be transitioned later all at
once)

Most of the changes in this PR follow these patterns:
- `kitlog.Logger` type → `*logging.Logger`
- `kitlog.With(logger, ...)` → `logger.With(...)`
- `kitlog.NewNopLogger() → logging.NewNopLogger()`, including similar
variations such as `logging.NewLogfmtLogger(w)` and
`logging.NewJSONLogger(w)`
- removed many now-unused kitlog imports

Unique changes that the PR review should focus on:
- server/platform/logging/kitlog_adapter.go: Core adapter changes
- server/platform/logging/logging.go: New convenience functions
- server/service/integration_logger_test.go: Test changes for slog

# Checklist for submitter

If some of the following don't apply, delete the relevant line.

- [x] Changes file added for user-visible changes in `changes/`,
`orbit/changes/` or `ee/fleetd-chrome/changes`.
  - Was added in previous PR

## Testing

- [x] Added/updated automated tests
- [x] QA'd all new/changed functionality manually


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Refactor**
* Migrated the codebase to a unified internal structured logging system
for more consistent, reliable logs and observability.
* No user-facing functionality changed; runtime behavior and APIs remain
compatible.
* **Tests**
* Updated tests to use the new logging helpers to ensure consistent test
logging and validation.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-02-11 10:08:33 -06:00
..
authz Activity bounded context: Complete read operations (#38555) 2026-02-09 15:29:12 -06:00
endpointer Correct err check endpoint (#39559) 2026-02-10 09:23:27 -05:00
http Correct err check endpoint (#39559) 2026-02-10 09:23:27 -05:00
logging Changes needed before gokit/log to slog transition. (#39527) 2026-02-11 10:08:33 -06:00
middleware Moved common endpointer packages to platform dir. (#37780) 2026-01-06 14:23:07 -06:00
mysql Added OTEL log export support (#39279) 2026-02-06 18:57:28 -06:00
arch_test.go Created kitlog adapter wrapping slog (#38890) 2026-02-03 20:37:17 -06:00
README.md Moved common_mysql package to server/platform/mysql (#38017) 2026-01-08 13:17:19 -06:00

Platform packages

This directory contains infrastructure and cross-cutting technical concerns that are independent of Fleet's business domain. These packages provide foundational capabilities used across the codebase.

Platform vs domain

Following separation of concerns, we distinguish:

  • Platform (infrastructure): Technical concerns like database connectivity, HTTP utilities, middleware, and transport-level error handling. These packages have no knowledge of Fleet's business domain.
  • Domain (business logic): Feature-specific code organized into bounded contexts. Domain packages depend on platform packages, not the reverse.

Guidelines

  • Platform packages must not import domain packages
  • Platform packages should be general-purpose and reusable
  • Architectural boundaries are enforced by arch_test.go