During the USM AIO-DX upgrade, it is necessary to swact to controller-1
to continue the process.
The dnsmasq.service attempts to resolve controller.internal to ensure
dnsmasq is running and to prevent SM from starting dependent services
that will attempt to use controller.internal.
While this approach worked initially, it affected the upgrade process
because the dnsmasq.addn_hosts file created by the previous release
does not include controller.internal.
As a result, the dnsmasq.service used up all its retries (20 seconds),
causing the SM to fail the swact to controller-1 due to a timeout.
To fix this, the dnsmasq.service will not resolve controller.internal
during the controller-1 upgrade.
Test done:
AIO-DX fresh install
AIO-DX swact to/from controller-1
AIO-DX USM upgrade
Story: 2010722
Task: 50762
Change-Id: I25211d58c7e952589a10d4760cc3e4b11250c96d
Signed-off-by: Fabiano Correa Mercer <fabiano.correamercer@windriver.com>
a08d8bca0b