Values:
REBOOT_CONFIG_UNSPECIFIED (0):
The default behavior is DEFAULT.
DEFAULT (1):
The agent decides if a reboot is necessary by checking
signals such as registry keys on Windows or
/var/run/reboot-required on APT based systems. On RPM
based systems, a set of core system package install times
are compared with system boot time.
ALWAYS (2):
Always reboot the machine after the update
completes.
NEVER (3):
Never reboot the machine after the update
completes.