Hi, when I experiment with installing a RHEL 8 host from Engine (master
branch running on RHEL 7), I get the following error in host deploy:

  2019-06-25 12:59:48,701+0200 DEBUG otopi.plugins.otopi.network.firewalld firewalld._get_firewalld_cmd_version:116 firewalld version: 0.6.3
  2019-06-25 12:59:48,701+0200 DEBUG otopi.plugins.otopi.dialog.machine dialog.__logString:204 DIALOG:SEND       **%EventEnd STAGE customization METHOD otopi.plugins.otopi.network.firewalld.Plugin._customization (None)
  2019-06-25 12:59:48,701+0200 DEBUG otopi.context context.dumpEnvironment:731 ENVIRONMENT DUMP - BEGIN
  2019-06-25 12:59:48,702+0200 DEBUG otopi.context context.dumpEnvironment:741 ENV NETWORK/firewalldAvailable=bool:'True'
  2019-06-25 12:59:48,702+0200 DEBUG otopi.context context.dumpEnvironment:745 ENVIRONMENT DUMP - END
  2019-06-25 12:59:48,702+0200 DEBUG otopi.context context._executeMethod:127 Stage customization METHOD otopi.plugins.otopi.core.config.Plugin._customize1
  2019-06-25 12:59:48,702+0200 DEBUG otopi.plugins.otopi.dialog.machine dialog.__logString:204 DIALOG:SEND       **%EventStart STAGE customization METHOD otopi.plugins.otopi.core.config.Plugin._customize1 (None)
  2019-06-25 12:59:48,703+0200 DEBUG otopi.plugins.otopi.dialog.machine dialog.__logString:204 DIALOG:SEND       **%EventEnd STAGE customization METHOD otopi.plugins.otopi.core.config.Plugin._customize1 (None)
  2019-06-25 12:59:48,703+0200 DEBUG otopi.context context._executeMethod:127 Stage customization METHOD otopi.plugins.ovirt_host_deploy.kdump.packages.Plugin._customization
  2019-06-25 12:59:48,703+0200 DEBUG otopi.plugins.otopi.dialog.machine dialog.__logString:204 DIALOG:SEND       **%EventStart STAGE customization METHOD otopi.plugins.ovirt_host_deploy.kdump.packages.Plugin._customization (None)
  2019-06-25 12:59:48,704+0200 DEBUG otopi.context context._executeMethod:145 method exception
  Traceback (most recent call last):
    File "/tmp/ovirt-AX5hJa1Fcr/pythonlib/otopi/context.py", line 132, in _executeMethod
      method['method']()
    File "/tmp/ovirt-AX5hJa1Fcr/otopi-plugins/ovirt-host-deploy/kdump/packages.py", line 216, in _customization
      self._kexec_tools_version_supported()
    File "/tmp/ovirt-AX5hJa1Fcr/otopi-plugins/ovirt-host-deploy/kdump/packages.py", line 143, in _kexec_tools_version_supported
      from rpmUtils.miscutils import compareEVR
  ModuleNotFoundError: No module named 'rpmUtils'
  2019-06-25 12:59:48,705+0200 ERROR otopi.context context._executeMethod:154 Failed to execute stage 'Environment customization': No module named 'rpmUtils'

It's apparently because `rpmUtils' module from `yum' package is no
longer present on RHEL 8 (in `yum' or another very easily guessable
package).  I'm not sure how el7 x el8 host installation is supposed to
work and whether I can do anything at the moment to proceed a bit
further.

I suppose similar yum x dnf issues will need some attention; not only in
host deploy but everywhere where yum or rpm manipulation is used.