In this chapter, I demonstrated how to attach instances to networks and mapped out the process of an instance obtaining its IP address from an OpenStack-managed DHCP server. I also showed you how an instance reaches out to the metadata service when connected to a VLAN provider network. The same examples in this chapter can be applied to any recent OpenStack cloud and many different network topologies.

For additional details on deployment scenarios based on provider networks, refer to the following upstream documentation for the Pike release of OpenStack at the following locations:

Open vSwitch: https://docs.openstack.org/neutron/pike/admin/deploy-ovs-provider.html

Linux bridge: 

https://docs.openstack.org/neutron/pike/admin/deploy-lb-provider.html

In the next chapter, we will learn how to leverage Neutron security group functionality to provide network-level security to instances.