Example Architecture; Openstack Nodes; Controller Node; Compute Node - Qlogic 3400 series User Manual

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Example Architecture

This chapter describes the OpenStack 4 node architecture.

OpenStack Nodes

This guide is intended for use with OpenStack 4 node architecture, which consists
of the following nodes:
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
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These nodes are described in the following sections.

Controller Node

In the example architecture used in this guide, the Controller node runs the
Identity service (Keystone), Image Service (Glance), management portions of the
Compute service (Nova Management) and Networking service (Neutron
Server/modular layer 2 (ML2) plug-in), networking plug-in, and the dashboard
(Horizon). The architecture also includes supporting services such as a database
(mysql), message broker (Rabbitmq), and network time protocol (NTP).

Compute Node

There are two compute nodes (Compute1 and Compute2) to check VXLAN
configuration. In this architecture, the compute nodes use a kernel-based virtual
machine (KVM) as the hypervisor (KVM is the default hypervisor). The compute
nodes run the Networking node plug-in (ML2) and layer 2 agent (OVS).

Network Node

The Network node runs the networking plug-in (ML2), layer 2 agent OVS, layer 3
agent, and DHCP agent. This node also handles external (Internet) connectivity
for tenant virtual machines (VMs) or instances of Compute nodes.
Controller
Compute1
Compute2
Network
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