Unable to deploy k8 cluster in openstack

Hi All,

I have deploy k8 cluster in openstack 16 vi rancher
creating machine------ done
provisioning ubuntu ----------done
SSH to the machine------done
Installing Docker-----done
copying certification to local machine directory------done
copying certificate to remote machine----------done
Setting Docker configuration on the remote daemon -----done
Checking connection to Docker.------------done
Error creating machine: Error checking the host: Error checking and/or regenerating the certs: There was an error validating certificates for host “”: dial tcp i/o timeout
failing in certification part.