Configuring MongoLog4jAppender to work on CloudFoundry

[bjornharvold]

Here's a sample MongoLog4jAppender configuration:

<appender name="MONGO" class="org.springframework.data.document.mongodb.log4j.MongoLog4jAppender">
        <param name="host" value="localhost"/>
        <param name="port" value="27017"/>
        <param name="database" value="logs"/>
        <param name="collectionPattern" value="%X{year}%X{month}"/>
        <param name="applicationId" value="lulu"/>
        <param name="warnOrHigherWriteConcern" value="FSYNC_SAFE"/>
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d %p [%c] - %x%m%n"/>
        </layout>
    </appender>

How can I configure my app so that the values for host and port change to match the cloud environment on CloudFoundry?