Description of problem:

repository rhel-7-server-openstack-13-rpms ships incompatible versions of ansible and ceph-ansible:

~~~
 [root@undercloud-1 ~]# yum search ansible --show-duplicates
Loaded plugins: product-id, search-disabled-repos, subscription-manager
=================================================== N/S matched: ansible ====================================================
ansible-doc-2.3.1.0-3.el7.noarch : Documentation for Ansible
ansible-doc-2.3.2.0-2.el7.noarch : Documentation for Ansible
ansible-doc-2.4.0.0-5.el7.noarch : Documentation for Ansible
ansible-doc-2.4.1.0-1.el7.noarch : Documentation for Ansible
ansible-doc-2.4.2.0-2.el7.noarch : Documentation for Ansible
ansible-pacemaker-1.0.4-0.20180220234310.0e4d7c0.el7ost.noarch : Ansible modules for managing Pacemaker clusters
ansible-pacemaker-1.0.4-0.20180220234310.0e4d7c0.el7ost.noarch : Ansible modules for managing Pacemaker clusters
ansible-role-redhat-subscription-1.0.1-1.el7ost.noarch : Ansible role for setting up Red Hat Subscription Management.
ansible-role-redhat-subscription-1.0.1-4.el7ost.noarch : Ansible role for setting up Red Hat Subscription Management.
ansible-role-redhat-subscription-1.0.1-4.el7ost.noarch : Ansible role for setting up Red Hat Subscription Management.
ansible-tripleo-ipsec-8.1.1-0.20180308133440.8f5369a.el7ost.noarch : Ansible role for setting up IPSEC tunnels for TripleO
ansible-tripleo-ipsec-8.1.1-0.20180308133440.8f5369a.el7ost.noarch : Ansible role for setting up IPSEC tunnels for TripleO
ceph-ansible-3.1.0-0.1.rc9.el7cp.noarch : Ansible playbooks for Ceph
ceph-ansible-3.1.0-0.1.rc10.el7cp.noarch : Ansible playbooks for Ceph
ceph-ansible-3.1.3-1.el7cp.noarch : Ansible playbooks for Ceph
ceph-ansible-3.1.5-1.el7cp.noarch : Ansible playbooks for Ceph
ceph-ansible-3.1.5-1.el7cp.noarch : Ansible playbooks for Ceph
python-heat-agent-ansible-1.5.4-0.20180308153305.ecf43c7.el7ost.noarch : Agent for performing Ansible based Heat software
                                                                       : deployments
ansible-2.3.1.0-3.el7.noarch : SSH-based configuration management, deployment, and task execution system
ansible-2.3.2.0-2.el7.noarch : SSH-based configuration management, deployment, and task execution system
ansible-2.4.0.0-5.el7.noarch : SSH-based configuration management, deployment, and task execution system
ansible-2.4.1.0-1.el7.noarch : SSH-based configuration management, deployment, and task execution system
ansible-2.4.2.0-2.el7.noarch : SSH-based configuration management, deployment, and task execution system
ansible-2.4.3.0-1.el7ae.noarch : SSH-based configuration management, deployment, and task execution system
ansible-2.4.6.0-1.el7ae.noarch : SSH-based configuration management, deployment, and task execution system
ansible-2.4.6.0-1.el7ae.noarch : SSH-based configuration management, deployment, and task execution system
ansible-2.6.11-1.el7ae.noarch : SSH-based configuration management, deployment, and task execution system
openstack-tripleo-validations-8.4.1-5.el7ost.noarch : Ansible playbooks to detect potential issues with TripleO deployments
openstack-tripleo-validations-8.4.2-1.el7ost.noarch : Ansible playbooks to detect potential issues with TripleO deployments
openstack-tripleo-validations-8.4.4-1.el7ost.noarch : Ansible playbooks to detect potential issues with TripleO deployments
openstack-tripleo-validations-8.4.4-1.el7ost.noarch : Ansible playbooks to detect potential issues with TripleO deployments
openstack-tripleo-validations-8.4.4-2.el7ost.noarch : Ansible playbooks to detect potential issues with TripleO deployments
~~~

~~~
 [root@undercloud-1 ~]# yum info ansible-2.6.11-1.el7ae.noarch
Loaded plugins: product-id, search-disabled-repos, subscription-manager
Available Packages
Name        : ansible
Arch        : noarch
Version     : 2.6.11
Release     : 1.el7ae
Size        : 10 M
Repo        : rhel-7-server-openstack-13-rpms/x86_64
Summary     : SSH-based configuration management, deployment, and task execution system
URL         : http://ansible.com
License     : GPLv3+
Description : 
            : Ansible is a radically simple model-driven configuration management,
            : multi-node deployment, and remote task execution system. Ansible works
            : over SSH and does not require any software or daemons to be installed
            : on remote nodes. Extension modules can be written in any language and
            : are transferred to managed machines automatically.

[root@undercloud-1 ~]# 
~~~

~~~
 [root@undercloud-1 ~]# yum info ceph-ansible-3.1.5-1.el7cp.noarch
Loaded plugins: product-id, search-disabled-repos, subscription-manager
Installed Packages
Name        : ceph-ansible
Arch        : noarch
Version     : 3.1.5
Release     : 1.el7cp
Size        : 1.0 M
Repo        : installed
From repo   : rhel-7-server-openstack-13-rpms
Summary     : Ansible playbooks for Ceph
URL         : https://github.com/ceph/ceph-ansible
License     : ASL 2.0 and GPLv3+
Description : Ansible playbooks for Ceph
~~~

The newer versions of Ceph Ansible which are compatible with ansible 2.6 are only shipped with rhel-7-server-rhceph-3-tools-rpms  
https://access.redhat.com/downloads/content/ceph-ansible/3.2.8-1.el7cp/noarch/fd431d51/package

Why do we ship incompatible versions of ansible and ceph-ansible within the same repository?



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