lazy val mongoRefresh = task {
        
        log.info("Refreshing Mongo Database")

        val sudo = new Mongo("localhost").getDB("sudo")

        sudo.dropDatabase

        val domains = new BasicDBList()

        domains.add("localhost")

        val devHost = BasicDBObjectBuilder.start("name", "dev")
            .add("domains", domains).get

        sudo.getCollection("hosts").save(devHost)

        None
    }

SBT MongoDB Task

Scala