Bug 1108362

Description of problem:
When running staypuft-installer you're prompted for the Gateway during the initial Network Configuration.

This Gateway setting ends up getting applied to both the foreman host and 
I'm not sure if this Gateway refers to what the Gateway should be for the routers option in /etc/dhcp/dhcpd.conf.

While that may be correct in some cases, it most definitely is not correct in *all* cases.

It is likely that the gateway for the foreman host will be different than the gateway that will be to be set via dhcp for nodes going through the provisioning process.

In these scenarios, if you leave Gateway set to the correct gateway for the foreman host, you end up with the wrong gateway in /etc/dhcp/dhcpd.conf, which you will have to manually correct. I have attached output showing this in gateway1.txt. I'm able to complete the install, but the wrong value is in /etc/dhcp/dhcpd.conf, as I actually need option routers 192.0.2.1; there.

If you update Gateway to be the correct value that you need set in /etc/dhcp/dhcpd.conf during the staypuft-installer run, then that actually gets applied as the gateway to the Foreman host, and you lose all outbound network connectiving during the installation, causing packages to fail to download, and staypuft-installer will eventually fail. I've attached output showing this in gateway2.txt.

Version-Release number of selected component (if applicable):
[root@staypuft ~]# rpm -q foreman-installer-staypuft
foreman-installer-staypuft-0.0.15-1.el6ost.noarch


How reproducible:
I've reproduced both ways, numerous times, in different staypuft environments.

Here's my network setup:

I have the default libvirt network, 192.168.122.0/24 with dhcp, no changes from a default libvirt setup.

For the isolated provisioning network, I have a "brbm" libvirt network, which is defined from the following xml:
<network>
  <name>brbm</name>
  <forward mode='bridge'/>
  <bridge name='brbm'/>
  <virtualport type='openvswitch'/>
</network>

openvswitch is running on the libvirt host, and a bridge has been created called brbm:
sudo ovs-vsctl add-br brbm

The staypuft vm has 2 nics, eth0 on the libvirt default network and eth1 on the brbm network. Each vm that is to be provisioned by staypuft has 1 nic, and it's on the brbm network.