environments {
    development {
        dataSource {
            dbCreate = "update" // one of 'create', 'create-drop', 'update', 'validate', ''
            url = "jdbc:mysql://localhost/frontdesk2db?useUnicode=yes&characterEncoding=UTF-8"
            username = "root"
            password = "admin"

            pooled = true
            properties {
                jmxEnabled = true
                initialSize = 5
                maxActive = 200
                minIdle = 20
                maxIdle = 100
                maxWait = 10000
                ...
            }
        }
    }
}