itzg/docker-minecraft-server

Add first-class JSON log output (Log4j2 JsonTemplateLayout) via env var

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#3,870 创建于 2026年1月14日

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 (1 评论) (1 反应) (0 负责人)Shell (13,694 star) (1,858 fork)batch import
enhancementhelp wanted

描述

Enhancement Type

Improve an existing feature

Describe the enhancement

Describe the problem / motivation Many log pipelines and docker observation tools work best with JSON in container stdout. Today the image primarily supports customizing PatternLayout via LOG_CONSOLE_FORMAT / LOG_FILE_FORMAT, which still produces unstructured text. (docker-minecraft-server.readthedocs.io)

Proposed enhancement Add an opt-in way to switch console (and optionally file) logs to JSON output using Log4j2’s JsonTemplateLayout. (logging.apache.org)

Suggested UX:

  • LOG_FORMAT=json (or LOG_LAYOUT=json-template)
  • LOG_JSON_TEMPLATE=<builtin name | path>

贡献者指南

技术栈
shelljavadocker
领域
devopsobservability
议题类型
feature
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
half day
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
fresh
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Familiarity with shell scriptingBasic knowledge of Log4jUnderstanding of Docker environment variables
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
75
研究方向
Investigate the existing LOG CONSOLE FORMAT and LOG FILE FORMAT environment variable handling in the Docker entrypoint scripts. Review the Log4j2 JsonTemplateLayout documentation to understand the required dependencies and configuration. Propose changes to the start scripts and log4j2.xml to support a new LOG FORMAT variable that switches to JSON output. Consider adding a built in JSON template or allowing a custom template path.
Add first-class JSON log output (Log4j2 JsonTemplateLayout) via env var · itzg/docker-minecraft-server#3870 | Good First Issue