esphome:
  on_boot:
    then:
      - logger.log:
          level: warn
          format: "Warning: Logger level is %d"
          args: [id(logger_id).get_log_level()]
      - logger.set_level: WARN
      - logger.set_level:
          level: ERROR
          tag: mqtt.client

logger:
  id: logger_id
  level: DEBUG
  initial_level: INFO
  logs:
    mqtt.component: WARN

select:
  - platform: logger
    name: Logger Level