Changing hostname

You can set custom hostname for control nodes on Cloud Pak for Data System.

Before you begin

Ensure that you have:
  • Management network IPs for control nodes: node1, node2, node3


  1. Connect to mgmt1 IP of e1n1.
  2. For management network IPs, update the IP values or custom hostnames, or both by following Node specific information.
  3. Validate the YAML file.
  4. Test the YAML file and run the playbooks.
  5. Validate that all nodes are accessible through their management IP addresses (nodes 1 - 3 and floating_ip).
    On Cloud Pak for Data System version 2.x with NPS installed no additional steps are required as the pod with NPS host runs on a worker node and there is no possibility to change its hostname.