Fix this link, please. https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/17.0/html/high_availability_for_compute_instances/assembly_installing-configuring-instanceha_rhosp#annotations:978880f4-091b-4031-90ce-7259a8e99147 High Availability for Compute Instances 2.6. ADDITIONAL RESOURCES currently points to https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/17.0/html-single/advanced_overcloud_customization/index#Chap-Roles. This guide has been redistributed. Reported by: astillma