Changes to the OpenStack installation
OpenStack can run in a virtualized environment, but various components must be tuned accordingly. The configuration is not optimal but should provide an experience that is acceptable for demonstration purposes.
Changes to the Nova configuration
After the OpenStack installation is complete, a change must be made to the Nova configuration on the virtual machines running the nova-compute service before instances can be booted. Software-based virtualization must be enabled in place of the faster, hardware-based KVM hypervisor.
On the compute node virtual machines, edit the auxiliary Nova configuration file at /etc/nova/nova-compute.conf and set virt_type to qemu from kvm:
[libvirt] ... virt_type=qemu
Restart the nova-compute service on both the compute nodes with the following command:
# service nova-compute restart
Changes to the Neutron configuration
Due to the lack of flexibility in configuring tagged networks with VirtualBox, the external GATEWAY_NET provider...
