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Both the above commands report the correct hostname undercloud-0. However, when later running the command 'openstack undercloud install' it fails with the following output: 018-12-23 10:34:46,421 INFO: Logging to /home/stack/.instack/install-undercloud.log 2018-12-23 10:34:46,458 INFO: Checking for a FQDN hostname... 2018-12-23 10:34:46,493 INFO: Static hostname detected as localhost.localdomain 2018-12-23 10:34:46,511 INFO: Transient hostname detected as undercloud-0 2018-12-23 10:34:46,511 ERROR: Static hostname "localhost.localdomain" does not match transient hostname "undercloud-0". 2018-12-23 10:34:46,511 ERROR: Use hostnamectl to set matching hostnames. 2018-12-23 10:34:46,511 ERROR: An error occurred during configuration validation, please check your host configuration and try again. Error message: Static and transient hostnames do not match Command 'instack-install-undercloud' returned non-zero exit status 1 and it does not work until I run both hostnamectl commands listed below https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/13/html/director_installation_and_usage/installing-the-undercloud#annotations:ff37cfc3-890d-475b-97a3-9cf68266a48a
Hi Nadav, I think this might be NOTABUG. The intro instructions state that you need to use a fully-qualified domain name that can be resolved with the DNS server you use for the undercloud node. In your case, you used "undercloud-0" as the hostname, which isn't a fully-qualified domain names (e.g. "undercloud-0.example.com") I could modify the step text to say: "If either of the previous commands do not report the correct fully-qualified hostname or report an error, use hostnamectl to set a hostname:" What do you think?
Hi Dan, Thanks for explaining that. Now I understand. I think that the modification you suggest would make it even clearer. Many thanks, Nadav
No worries. This has been implemented: https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/13/html/director_installation_and_usage/installing-the-undercloud#setting-the-undercloud-hostname