Log4j2 Grails RollingFileAppender - grails

Question

I'm trying to implement log4j2 with grails 2.5.3 and I'm having problems with the configuration properties.
I my older projects with log4j 1.x I used to have in the config.groovy file something like this:
import org.apache.log4j.*
...
log4j={
environments{
production{
appenders{
def rollingAppender = new RollingFileAppender(
name: "rollingAppender",
layout: pattern(conversionPattern:"[%p] %d{yyyy-MM-dd HH:mm:ss.SSS} (%t) %c{2} %X - %ms : %m%n"),
file: "/tmp/logs/catalina.out",
bufferedIO: false,
maxFileSize: "300MB"
)
appender rollingAppender
}
}
development{
appenders {
def rollingAppender = new RollingFileAppender(
name: "rollingAppender",
layout: pattern(conversionPattern:"[%p] %d{yyyy-MM-dd HH:mm:ss.SSS} (%t) %c{2} %X - %ms : %m%n"),
file: "/tmp/logs/catalina.out",
bufferedIO: false,
maxFileSize: "15MB"
)
appender rollingAppender
}
}
}
info aditivity:false, rollingAppender:"grails.app.services"
info aditivity:false, rollingAppender:"grails.app.controllers"
}
Now, I have seen XML configuration files everywhere but I can't find the way to do it like I used to. I mean, I want to load different configs depending on the enviroment the application is running. Is it a possibility with log4j2?
I have something like this now:
import org.apache.logging.log4j.core.appender.RollingFileAppender
import org.apache.logging.log4j.core.appender.rolling.SizeBasedTriggeringPolicy
import org.apache.logging.log4j.core.appender.rolling.DefaultRolloverStrategy
import org.apache.logging.log4j.core.layout.PatternLayout
...
enviroments{
development{
appenders {
def rollingAppender = new RollingFileAppender(
name: "rollingAppender",
filePattern: "/tmp/logs_bkp/catalina.%d{yyyy-MM-dd HH:mm:ss.SSS}.log.gz",
layout: new PatternLayout("[%p] %d{yyyy-MM-dd HH:mm:ss.SSS} (%t) %c{2} %X - %ms : %m%n")
fileName: "/tmp/logs/catalina.out",
bufferedIO: false,
policy: new SizeBasedTriggeringPolicy(1024),
strategy: new DefaultRolloverStrategy(2,1,"min",false,5)
)
appender rollingAppender
}
}
}
I know it has some errors, but I can't figure it out how to make it work without using the XML config file. Any ideas?