схема базы данных OVN_Northbound (OVN_Northbound database schema)
Имя (Name)
ovn-nb - OVN_Northbound database schema
This database is the interface between OVN and the cloud
management system (CMS), such as OpenStack, running above it. The
CMS produces almost all of the contents of the database. The
ovn-northd program monitors the database contents, transforms it,
and stores it into the OVN_Southbound database.
We generally speak of ``the'' CMS, but one can imagine scenarios
in which multiple CMSes manage different parts of an OVN
deployment.
External IDs
Each of the tables in this database contains a special column,
named external_ids. This column has the same form and purpose
each place it appears.
external_ids: map of string-string pairs
Key-value pairs for use by the CMS. The CMS might
use certain pairs, for example, to identify
entities in its own configuration that correspond
to those in this database.
