Description of problem:
ovirt-host package is removed on deployed hosts

Version-Release number of selected component (if applicable):
ovirt-engine-4.2.0-0.0.master.20170920172148.git8366a0b.el7.centos.noarch
ovirt-host-deploy-1.7.0-0.0.master.20170912090102.git1eeb5a2.el7.centos.noarch

How reproducible:
tried only once

Steps to Reproduce:
Using CentOS minimal.
1. Install from http://resources.ovirt.org/pub/yum-repo/ovirt-release42-pre.rpm
2. Deploy an host
3. check if ovirt-host is installed

Actual results:

rpm -qv ovirt-host
package ovirt-host is not installed

Expected results:
ovirt-host should be installed.

Additional info:
I installed the host withi a firewalld cluster.
Manually installing ovirt-host:
=================================================================================================================
 Package                    Arch    Version                                                 Repository      Size
=================================================================================================================
Installing:
 ovirt-host                 noarch  4.2.0-0.0.master.20170913090858.git0bfa7ab.el7.centos   ovirt-4.2-pre  7.6 k
Installing for dependencies:
 cockpit-ovirt-dashboard    noarch  0.11.1-0.0.master.el7.centos                            ovirt-4.2-pre  3.3 M
 iptables-services          x86_64  1.4.21-18.0.1.el7.centos                                base            51 k
 ovirt-hosted-engine-setup  noarch  2.2.0-0.0.master.20170919052946.git896e399.el7.centos   ovirt-4.2-pre  331 k

Transaction Summary
=================================================================================================================
Install  1 Package (+3 Dependent packages)


I've the feeling this is caused by some ansible command in post-deploy phase.
Note that this cause also not being able to deploy additional hosts for hosted engine on clusters with firewalld enabled.