[Brutus5000]

Summary

• Log JSON (Spring Boot structured logging, logstash format by default — flat fields, easy to query with Loki's | json) to the console by default (similar to Use json logging faf-user-service#681).
• local profile sets the format to empty and keeps plain-text logs. Unit/integration tests use their own application.yml and are unaffected.
• Format configurable via LOG_STRUCTURED_FORMAT (logstash, ecs, gelf; documented in configuration.md).
• Removed logback.xml: its base.xml include bypassed structured logging, and its only other content was a separate audit.log file appender for AuditService. Audit messages still appear in the normal log output (logger com.faforever.api.security.AuditService), so they can be filtered in Loki. Behavior change: no more separate audit.log file.

Verified

Ran bootRun with API_PROFILE=prod (JSON lines only) and API_PROFILE=local (plain text only).

🤖 Generated with Claude Code

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Reviewing files that changed from the base of the PR and between 6b0f0f8 and b377030.

Files selected for processing: 3

• configuration.md
• src/main/resources/config/application.yml
• src/main/resources/logback.xml

Walkthrough

The application configuration now sets the structured logging console format to ecs by default and to an empty string in the local profile. The configuration documentation describes LOG_STRUCTURED_FORMAT and the supported formats.

Changes: Structured Logging Format

Layer / File(s)	Summary
Configure and document the console format src/main/resources/config/application.yml, src/main/resources/config/application-local.yml, configuration.md	The default console format is ecs, and LOG_STRUCTURED_FORMAT can override it. The local profile sets the format to an empty string. The documentation lists ECS, Logstash, and GELF.

Priority: Pending latest changes

Estimated code review effort: 1 (Trivial) | ~5 minutes

Change: Feature

Merge Risk: Low · up to 6b0f0

Local startup logs may contain initialization errors, so the intended readable logging behavior is not reliable.

Pre-merge checks: 5

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly describes the primary change: enabling JSON logging on the console by default. It is concise and directly related to the pull request.
Docstring Coverage		No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (3 skipped: 3 unsupported.)

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Actionable comments posted: 1

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• 🪄 Fix comments: Fix CodeRabbit comments on this PR

Prompt to fix review comments

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Inline comments:
Review comments at @src/main/resources/config/application-local.yml:
- Line 95: Remove the empty value for logging.structured.format.console in the
local profile and prevent application.yml’s ECS default from applying there. Use
a profile-specific logging configuration that omits structured formatting so
local logs remain plain text without triggering an unsupported-format error.

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Commits

Reviewing files that changed from the base of the PR and between caed91e and 6b0f0f8.

Files selected for processing: 3

• configuration.md
• src/main/resources/config/application-local.yml
• src/main/resources/config/application.yml

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