Comment 3 for bug 1797108

Reviewed: https://review.openstack.org/609654
Committed: https://git.openstack.org/cgit/openstack/stx-config/commit/?id=604b4a5ea0c2f8fa78f204032acfbf0a72f8a50c
Submitter: Zuul
Branch: master

commit 604b4a5ea0c2f8fa78f204032acfbf0a72f8a50c
Author: Stefan Dinescu <email address hidden>
Date: Thu Oct 11 12:43:55 2018 +0300

    Standby controller filesystem sizes check

    While installing a system with two controllers, you can assign new
    PVs to the cgts-vg volume group and resize the filesystem on
    controller-0, before provisioning controller-1.

    If these new sizes are above the default provisioned space for
    cgts-vg on controller-1, the unlock is allowed, but the node
    goes into a reboot loop due to not having enough space to
    assign to all the partitions.

    Now, before unlocking the standby controller for the first time
    we check if the provisioned space on the node is equal or larger
    than the used space on the active controller and if it is not
    reject the unlock.

    Change-Id: I3fce3430abbb81d08272f35915cc50c761754733
    Closes-bug: 1797108
    Signed-off-by: Stefan Dinescu <email address hidden>