How to fix "NoValidHost: No valid host was found. There are not enough hosts available" during overcloud deployment (openstack)
Error: NoValidHost: No valid host was found You get below error message on the console while performing an overcloud deployment from the undercloud director 2018-08-14 06:42:59Z [overcloud.Controller.0.Controller]: CREATE_FAILED ResourceInError: resources.Controller: Went to status ERROR due