Log4j2EventLayout.json

{
  "service.name": "${env:SERVICE_NAME:-logs-in-context}",
  "timestamp": {
    "$resolver": "timestamp"
  },
  "thread.name": {
    "$resolver": "thread",
    "field": "name"
  },
  "log.level": {
    "$resolver": "level",
    "field": "name"
  },
  "logger.name": {
    "$resolver": "logger",
    "field": "name"
  },
  "class.name": {
    "$resolver": "source",
    "field": "className"
  },
  "method.name": {
    "$resolver": "source",
    "field": "methodName"
  },
  "line.number": {
    "$resolver": "source",
    "field": "lineNumber"
  },
  "trace_id": {
    "$resolver": "mdc",
    "key": "trace_id"
  },
  "span_id": {
    "$resolver": "mdc",
    "key": "span_id"
  },
  "message": {
    "$resolver": "message",
    "stringified": true
  },
  "error.class": {
    "$resolver": "exception",
    "field": "className"
  },
  "error.message": {
    "$resolver": "exception",
    "field": "message"
  },
  "error.stack": {
    "$resolver": "exception",
    "field": "stackTrace",
    "stackTrace": {
      "stringified": true
    }
  }
}