The parameter for excluding to run test classes while deploying into Salesforce developer org

[Ashwin Kondapally]

I am using Bamboo build tool for deploying a branch to my developer sandbox. The job has parameters like this. deployCodeCheckOnly testLevel="NoTestRun" -Dsf.username=${bamboo.sf.username} -Dsf.password=${bamboo.sf.password} -Dsf.loginUrl=${bamboo.sf.loginUrl} -Dproxy.enabled=${bamboo.proxy.enabled} -Dproxy.host=${bamboo.proxy.host} -Dproxy.port=${bamboo.proxy.port} -Dproxy.user=${bamboo.proxy.user} -Dproxy.password=${bamboo.proxy.password}

However all the test classes are being run for the validation. How can I exclude running the test classes when deploying to my localsandbox.