The OpenStack approach to networking
Having considered AWS networking, we will now explore OpenStack's approach to networking and look at how its services are configured.
OpenStack is deployed in a data center on multiple controllers. These controllers contain all the OpenStack services, and they can be installed on either virtual machines, bare metal (physical) servers, or containers. The OpenStack controllers should host all the OpenStack services in a highly available and redundant fashion when they are deployed in production.
Different OpenStack vendors provide different installers to install OpenStack. Some examples of installers from the most prominent OpenStack distributions are RedHat Director (based on OpenStack TripleO), Mirantis Fuel, ...
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