Cluster certificates are not updated on cluster join. Centos 7.4 (centos-release-7-4.1708.el7.centos.x86_64)
1. Bootstrap managers with ssl with autogenerated certificate
2. Start cluster on one CLI - I used cluster master CLI
3. Move to another node CLI and add cluster master profile and update it with `cfy cluster update-profile`
4. Try to add another node - I used cluster replica node CLI
Example:
Cluster manager context: