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Set log level based on MDC values

This can be used to change the log level based on MDC valus. E.g. change log levels for specific users/services etc.

Properties

Property Description Default
logger.mdc.enabled MDC enabled? true
logger.mdc.<key> MDC key to use
logger.mdc.<key>.key MDC key override, see complex example below for usage <key>
logger.mdc.<key>.level log level to use TRACE
logger.mdc.<key>.loggers passlist of logger names, matches all loggers if empty []
logger.mdc.<key>.values values for matching MDC key, matches all values if empty []

Examples

Minimal configuration that logs everything with TRACE if MDC principal is present:

logger:
  levels:
    io.kokuwa: INFO
  mdc:
    principal: {}

Configuration that logs everything with TRACE for logger io.kokuwa if MDC gateway matches one value:

logger:
  levels:
    io.kokuwa: INFO
  mdc:
    gateway:
      loggers:
        - io.kokuwa
      values:
        - 257802b2-22fe-4dcc-bb99-c1db2a47861f
        - 0a44738b-0c3a-4798-8210-2495485f10b2

Complex example with setting different values for different values/logger:

logger:
  levels:
    io.kokuwa: INFO
  mdc:
    gateway-debug:
      key: gateway
      level: DEBUG
      loggers:
        - io.kokuwa
      values:
        - 6a1bae7f-eb6c-4c81-af9d-dc15396584e2
        - fb3318f1-2c73-48e9-acd4-a2be3c9f9256
    gateway-trace:
      key: gateway
      level: TRACE
      loggers:
        - io.kokuwa
        - io.micronaut
      values:
        - 257802b2-22fe-4dcc-bb99-c1db2a47861f