Use oslo_config new type PortOpt for port options

[chenying]

The oslo_config library provides new type PortOpt to validate the
range of port now. We can replace them with PortOpt.

The PortOpt type only supports 1-65535, so if the option needs to support port 0

(which means anything available) then it can only be IntOpt.

https://github.com/openstack/cinder/blob/master/cinder/service.py#L65

    cfg.StrOpt('osapi_volume_listen',
               default="0.0.0.0",
               help='IP address on which OpenStack Volume API listens'),
    cfg.IntOpt('osapi_volume_listen_port',
               default=8776,
               min=1, max=65535,
               help='Port on which OpenStack Volume API listens'),
    cfg.IntOpt('osapi_volume_workers',
               help='Number of workers for OpenStack Volume API service. '
                    'The default is equal to the number of CPUs available.'), ]

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/243433

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/243433
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=7ef20e1b910498e5a7952ec373286e69485a8533
Submitter: Jenkins
Branch: master

commit 7ef20e1b910498e5a7952ec373286e69485a8533
Author: chenying <email address hidden>
Date: Tue Nov 10 15:17:57 2015 +0800

    Use oslo_config new type PortOpt for port options

    The oslo_config library provides new type PortOpt to validate the
    range of port now.
    ref: https://github.com/openstack/oslo.config/blob/2.6.0/oslo_config/cfg.py#L1114

    DocImpact
    Change-Id: I9a3e4d13feef67b4a43936c6099b822e4f1f6a57
    Closes-Bug: #1514702

[Thierry Carrez (ttx)]

This issue was fixed in the openstack/cinder 8.0.0.0b1 development milestone.