live migration fails when hostnames are configured with "_" (underscore) due to inconsistent naming in /etc/hosts and /etc/ssh/ssh_known_hosts in Red Hat OpenStack Platform
Issue
live migration fails when hostnames are configured with _ (underscore) due to inconsistent naming in /etc/hosts and /etc/ssh/ssh_known_hosts in Red Hat OpenStack Platform. For example, the following configuration will trigger this issue:
/home/stack/templates/network-environment.yaml
parameter_defaults:
(...)
ComputeHostnameFormat: '%stackname%-compute_v1-%index%'
Environment
Red Hat OpenStack Platform 10
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