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Description of problem: Version-Release number of selected component (if applicable): How reproducible: The deployment fails if yum-plugin-priorities is installed on the undercloud: Error: Execution of '/bin/yum -d 0 -e 0 -y install python-nova' returned 1: Error: Package: python2-cryptography-1.3.1-3.el7.x86_64 (rhel-7-server-rpms) Requires: python-cffi >= 1.4.1 Available: python-cffi-1.1.2-4.el7ost.x86_64 (RH7-RHOS-8.0) python-cffi = 1.1.2-4.el7ost You could try using --skip-broken to work around the problem ** Found 1 pre-existing rpmdb problem(s), 'yum check' output follows: python-ironic-inspector-client-1.2.0-6.el7ost.noarch has installed conflicts python-ironic-discoverd: python-ironic-inspector-client-1.2.0-6.el7ost.noarch[0m [1;31mError: /Stage[main]/Nova/Package[python-nova]/ensure: change from absent to present failed: Execution of '/bin/yum -d 0 -e 0 -y install python-nova' returned 1: Error: Package: python2-cryptography-1.3.1-3.el7.x86_64 (rhel-7-server-rpms) Requires: python-cffi >= 1.4.1 Available: python-cffi-1.1.2-4.el7ost.x86_64 (RH7-RHOS-8.0) python-cffi = 1.1.2-4.el7ost 2016-11-19 10:34:33,047::DEBUG::u could try using --skip-broken to work around the problem ** Found 1 pre-existing rpmdb problem(s), 'yum check' output follows: python-ironic-inspector-client-1.2.0-6.el7ost.noarch has installed conflicts python-ironic-discoverd: python-ironic-inspector-client-1.2.0-6.el7ost.noarch OSP8 comes with an outdated version of python-cffi. Because of yum-plugin-priorities, yum try to use this version instead of the one coming from RHEL 7.3. Could you remove python-cffi from OSP8 or update the version?
No, we don't remove content from CDN and we don't reship content that is in RHEL unless we absolutely necessary (we need something that is not available in the rhel version). If you're using yum priorities (which we don't document using, I don't believe), you should have rhel-7-server and rhos-7-server-openstack-*-rpms at the same priority level. All our testing is done without yum priorities, relying on yum/rpm to make the right decisions.