add ps, lsof to drone image for debugging
add ps, lsof to drone image for debugging

remoe/coreos-docker-dev,remoe/coreos-docker-dev,xueshanf/coreos-docker-dev,xueshanf/coreos-docker-dev,xuwang/coreos-docker-dev,xuwang/coreos-docker-dev,xuwang/coreos-docker-dev,xueshanf/coreos-docker-dev,xuwang/coreos-docker-dev,remoe/coreos-docker-dev,remoe/coreos-docker-dev,xueshanf/coreos-docker-dev,xueshanf/coreos-docker-dev