Now that we have a machine for running OpenStack Compute, we can install the appropriate packages that will allow us to spawn its own virtual machine instances.
To do this, we will create a machine that runs all the appropriate services for running OpenStack Nova. The services are as follows:
nova-compute: This is the main package for running the virtual machine instances.nova-api-metadata: This is the Nova API metadata frontend. It is used when we are running a multihost nova network in our environment, so our compute instances can download metadata.nova-compute-qemu: This provides QEMU services on our compute host. It is only required where hardware virtualization assistance isn’t available (as required to run OpenStack under VirtualBox).