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nova-conductor

The nova-conductor service provides database access to compute nodes. The idea behind this service is to prevent direct database access from the compute nodes, thus enhancing database security in case one of the compute nodes gets compromised.

By zooming out of the general components of OpenStack, we find that Nova interacts with several services such as Keystone for authentication, Glance for images, and Horizon for the web interface. For example, the Glance interaction is central; the API process can upload any query to Glance, while nova-compute will download images to launch instances.

Nova also provides console services that allow end users to access the console of the virtual instance through a proxy such as nova-console, nova-novncproxy, and nova-consoleauth.

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