osbuilder: Add "Agent init" on terms glossary
Include on the terms glossary some words about the agent init as
later on README its explain how the agent can be switched between
systemd and init.
@@ -65,6 +65,13 @@ This section describes the terms used for all documentation in this repository.
A guest OS build method where the building host is used as the Base OS.
For more information refer to the [dracut homepage](https://dracut.wiki.kernel.org/index.php/Main_Page).
+- Agent init
+
+ The Guest OS should have the Kata Containers agent started on boot time.
+
+ That is achieved by using a system manager (for example, systemd) which
+ will evoke the agent binary; or having the agent itself as the init process.
+
## Building
The top-level `Makefile` contains an example of how to use the available components.
