Hosts role should set SELinux into permissive mode

[Major Hayden]

There are still a few bugs within the CentOS deployment (especially around keepalived's ping functionality) which cause SELinux AVC's. We should set SELinux into permissive mode until those are fixed.

And yes, this is extremely painful for me to write.

[Sam Yaple (s8m)]

https://major.io/2013/04/15/seriously-stop-disabling-selinux/

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/422668

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/422668
Committed: https://git.openstack.org/cgit/openstack/openstack-ansible/commit/?id=eb6992174fdb9d198d89b8045424686972e17afc
Submitter: Jenkins
Branch: master

commit eb6992174fdb9d198d89b8045424686972e17afc
Author: Major Hayden <email address hidden>
Date: Thu Jan 19 08:52:25 2017 -0600

    Don't enforce SELinux policy temporarily

    This patch sets a variable that temporarily avoids putting SELinux
    into enforcing mode until some additional policy can be written.

    Please note the **temporarily** in the commit message. I've had enough
    trolling about this already. ;)

    Closes-Bug: 1657517
    Change-Id: I898ec5ae646dbe444b85c2f919f75c53971fabdf

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/openstack-ansible 15.0.0.0b3 development milestone.