let mongs and config_server use specified volume_size

[zhanggang]

Currently when create a mongodb cluster, mongos and config_server use the volume_size of replica-set node. But mongos and config_server are not data node, they don't need a volume space as large as data node.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/536684

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/536684
Committed: https://git.openstack.org/cgit/openstack/trove/commit/?id=f06f65dcba13894183bde048577815fcb3bfc57a
Submitter: Zuul
Branch: master

commit f06f65dcba13894183bde048577815fcb3bfc57a
Author: zhanggang <email address hidden>
Date: Mon Jul 16 20:33:29 2018 +0800

    Add extended properties support for mongo cluster.

    Currently when create a mongodb cluster, mongos and configsvr
    use the volume_size of replica-set node. But mongos and configvr
    are not data node, they don't need volume space as large as data
    node. This patch attend to help user specify the number, the volume
    size and the volume type of mongos/configserver with
    extended_properties[1] argument when creating mongodb. Currently,
    the supported parameters are, num_configsvr, num_mongos,
    configsvr_volume_size, configsvr_volume_type, mongos_volume_size
    and mongos_volume_type.

    [1] https://review.openstack.org/#/c/206931/

    Closes-Bug: #1734907

    Signed-off-by: zhanggang <email address hidden>
    Change-Id: Ie48f3961b21f926f983c6713a76b0492952cf4c7

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/trove 11.0.0.0rc1 release candidate.