grenade -t failed when running resource phase verify

[Yongfeng Du]

I'm running 2 phase grenade,
first run grenade -b, when that completed, run grenade -t to verify the upgrade.
Following error occurs when doing grenade -t:

2015-08-24 08:41:34.100 | #********************************************
2015-08-24 08:41:34.100 | # Running resource phase verify
2015-08-24 08:41:34.100 | #********************************************
2015-08-24 08:41:34.100 |
2015-08-24 08:41:35.019 | + KEYSTONE_TEST_USER=keystone_check
2015-08-24 08:41:35.019 | + KEYSTONE_TEST_GROUP=keystone_check
2015-08-24 08:41:35.020 | + KEYSTONE_TEST_PASS=pass
2015-08-24 08:41:35.020 | + case $1 in
2015-08-24 08:41:35.020 | + verify
2015-08-24 08:41:35.020 | ++ resource_get keystone user_id
2015-08-24 08:41:35.021 | ++ local project=keystone
2015-08-24 08:41:35.021 | ++ local key=user_id
2015-08-24 08:41:35.022 | +++ iniget /opt/stack/save/grenade_db.ini keystone user_id
2015-08-24 08:41:35.035 | ++ local value=
2015-08-24 08:41:35.036 | ++ echo
2015-08-24 08:41:35.036 | + local user_id=
2015-08-24 08:41:35.036 | + openstack user show
2015-08-24 08:41:36.105 | usage: openstack user show [-h] [-f {html,json,shell,table,value,yaml}]
2015-08-24 08:41:36.106 | [-c COLUMN] [--max-width <integer>]
2015-08-24 08:41:36.106 | [--prefix PREFIX]
2015-08-24 08:41:36.106 | <user>
2015-08-24 08:41:36.107 | openstack user show: error: too few arguments
2015-08-24 08:41:36.155 | + exit_trap
2015-08-24 08:41:36.156 | + local r=2
2015-08-24 08:41:36.156 | 1 verify /home/yongfeng/work/grenade-latest/projects/10_keystone/resources.sh
2015-08-24 08:41:36.156 | 69 main /home/yongfeng/work/grenade-latest/projects/10_keystone/resources.sh
2015-08-24 08:41:36.156 | Exit code: 2
2015-08-24 08:41:39.086 | [Call Trace]
2015-08-24 08:41:39.086 | ./grenade.sh:309:resources
2015-08-24 08:41:39.086 | /home/yongfeng/work/grenade-latest/inc/plugin:104:die
2015-08-24 08:41:39.092 | [ERROR] /home/yongfeng/work/grenade-latest/inc/plugin:104 Failed to run /home/yongfeng/work/grenade-latest/projects/10_keystone/resources.sh verify
2015-08-24 08:41:40.096 | 1 die /opt/stack/liberty/devstack/functions-common
2015-08-24 08:41:40.096 | 104 resources /home/yongfeng/work/grenade-latest/inc/plugin
2015-08-24 08:41:40.096 | 309 main ./grenade.sh
2015-08-24 08:41:40.096 | Exit code: 2

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/216552

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/216552
Committed: https://git.openstack.org/cgit/openstack-dev/grenade/commit/?id=c215ce2d901e2119e1cde12bd7cf428b7dd68f4b
Submitter: Jenkins
Branch: master

commit c215ce2d901e2119e1cde12bd7cf428b7dd68f4b
Author: Yongfeng Du <email address hidden>
Date: Tue Aug 25 14:24:35 2015 +0800

    Move init_grenade_db to base release installation

    init_grenade_db will clean the db file. If we are running grenade -t
    we expect the db have resources saved at base run. so move it down to
    run only for base installation.

    Change-Id: I39fcee54db08c163352d314d68e014191a43d07c
    Closes-bug: #1488008