Overcloud nodes deployed as KVM guests unable to get IP addresses from Openstack Director running as a guest on RHEV
Issue
- Trying to PXE boot a machine but unable to receive DHCP reply
- We are currently deploying Platform Director in our lab. This lab comprise of UCS where RHEV cluster is running. This cluster hosts a VM where Platform Director (undercloud) was installed. Additional and dedicated nic was configured on RHEV for undercloud.
- On another external machine C240 where RHEL is running was configured with Libvirt. This machine will host the Overcloud nodes.
- On Undercloud system. All configuration was applied and seems to work, when executing deploying its able to start the overcloud target nodes but these nodes cannot pxe boot.
- Overcloud nodes dhcp on introspection but not on overcloud deployment.
-
Overcloud nodes do not dhcp when undercloud is on RHEV.
-
Environment looks like :
+-------+ +-------+
+---------------+ | | | |
| director VM | | o/c1 | | o/c2 |
| eth1 | | eth0 | | eth0 |
+------+--------+ +-----+-+ +-+-----+
| vnetX ^ ^
+---v-----+ vnetY | | vnetZ
| rhevm | ++-------++
+---+-----+ | virbr0 |
| +---------+
+-------v----------+ +-------^-------+
| | | |
| RHEV-H eth2 | | Libvirt KVM |
| | | enp10s0 |
+-------+----------+ +-----+---------+
^ ^
| DHCP req/reply |
+-------------------------------+
Where o/c corresponds to overcloud VMs.
Environment
- Red Hat Enterprise Openstack platform 7 and later ones.
- Red Hat Virtualization 3.x, 4.x
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