Description of problem: The deployment of an overcloud with the roles controller-no-ceph and Hci-all-ceph failed with the error: overcloud.HciCephAllAllNodesValidationDeployment.1: resource_type: OS::Heat::StructuredDeployment physical_resource_id: 41dd2d31-1d40-4897-8bbe-e0a635aa8d89 status: CREATE_FAILED status_reason: | Error: resources[1]: Deployment to server failed: deploy_status_code : Deployment exited with non-zero status code: 1 deploy_stdout: | Trying to ping 10.0.0.102 for local network 10.0.0.0/24. Ping to 10.0.0.102 failed. Retrying... Ping to 10.0.0.102 failed. Retrying... Ping to 10.0.0.102 failed. Retrying... Ping to 10.0.0.102 failed. Retrying... Ping to 10.0.0.102 failed. Retrying... Ping to 10.0.0.102 failed. Retrying... Ping to 10.0.0.102 failed. Retrying... Ping to 10.0.0.102 failed. Retrying... Ping to 10.0.0.102 failed. Retrying... Ping to 10.0.0.102 failed. Retrying... FAILURE deploy_stderr: | 10.0.0.102 is not pingable. Local Network: 10.0.0.0/24 overcloud.ControllerNoCephAllNodesValidationDeployment.0: resource_type: OS::Heat::StructuredDeployment physical_resource_id: f7cfe822-8488-4e93-8f6a-ee7777330438 status: CREATE_FAILED status_reason: | Error: resources[0]: Deployment to server failed: deploy_status_code : Deployment exited with non-zero status code: 1 deploy_stdout: | Trying to ping 10.0.0.102 for local network 10.0.0.0/24. Ping to 10.0.0.102 failed. Retrying... Ping to 10.0.0.102 failed. Retrying... Ping to 10.0.0.102 failed. Retrying... Ping to 10.0.0.102 failed. Retrying... Ping to 10.0.0.102 failed. Retrying... Ping to 10.0.0.102 failed. Retrying... Ping to 10.0.0.102 failed. Retrying... Ping to 10.0.0.102 failed. Retrying... Ping to 10.0.0.102 failed. Retrying... Ping to 10.0.0.102 failed. Retrying... FAILURE deploy_stderr: | 10.0.0.102 is not pingable. Local Network: 10.0.0.0/24 The deployment topology is - 3 controller nodes with no ceph - 3 Hci nodes with all of the ceph roles in it all of the nodes had IP addresses in the 10.0.0.0/24 local network and all of them were reachable from the undercloud Version-Release number of selected component (if applicable): openstack-tripleo-validations-8.4.0-1.el7ost.noarch How reproducible: unknown Steps to Reproduce: 1. Create role_data.yaml file from the roles ControllerNoCeph and HciAllCeph 2. Set the deployment configuration: parameter_defaults: ControllerNoCephCount: 3 HciCephAllCount: 3 3. Deploy the overcloud Actual results: The deployment failed with the validation attempting to ping a non existing IP address in the 10.0.0.0/24 local network Expected results: The validation pings the right IP addresses Additional info: