logback + logstash

build.gradle

dependencies {
    compile group: 'net.logstash.logback', name: 'logstash-logback-encoder', version: '2.8'
}

logback.groovy

import ch.qos.logback.classic.encoder.PatternLayoutEncoder
import ch.qos.logback.core.ConsoleAppender
import ch.qos.logback.core.rolling.RollingFileAppender
import ch.qos.logback.core.rolling.TimeBasedRollingPolicy
import ch.qos.logback.core.status.OnConsoleStatusListener
import net.logstash.logback.encoder.LogstashEncoder

import static ch.qos.logback.classic.Level.INFO
import static ch.qos.logback.classic.Level.DEBUG
import static ch.qos.logback.classic.Level.WARN
import static ch.qos.logback.classic.Level.TRACE
import static ch.qos.logback.classic.Level.ERROR
import static ch.qos.logback.classic.Level.OFF

// "log" any logging related issues
statusListener(OnConsoleStatusListener)

appender("FILE", RollingFileAppender) {
    rollingPolicy(TimeBasedRollingPolicy) {
        fileNamePattern = "/tmp/foobar.%d{yyyy-MM-dd-HH}.log"
        maxHistory = 336
    }
    encoder(LogstashEncoder) {
        enableContextMap = true
    }
}

root(DEBUG, ["FILE"])