[DVS 3.0] Can't save 'Cluster to dvSwitch mapping' via UI.

[Olesia Tsvigun]

Fuel ISO#230
Fuel-plugin-vmware-dvs 3.0

Steps to reproduce
1. Install fuel-plugin-vmware-dvs 3.0.
2. Create cluster with vcenter+dvs
3. Try to add 'dvSwitch:Cluster1' in the 'Cluster to dvSwitch mapping' field.

Actual Result
Error message 'OpenStack Settings Configuration Error
Some restrictions didn't pass verification: [u'Empty name of dvSwitch']' was displayed.

Expected Result
'dvSwitch:Cluster1' should be added in the 'Cluster to dvSwitch mapping' field .

[Alexander Arzhanov (aarzhanov)]

VMware DVS plugin environment_config.yaml
https://github.com/openstack/fuel-plugin-vmware-dvs/blob/master/environment_config.yaml

If comment section:
# regex:
# source: &non_empty_string '\S'
# error: "Empty name of dvSwitch"
the problem is not reproduced.

If i try use another regex:
    regex:
      source: '.'
      error: "Empty name of dvSwitch"
the problem is reproduced.

Сhanges, after which the problem occurred:
https://github.com/openstack/fuel-web/commit/7e3fe2c308918f4f8abc42ad7d1584b4e4afadfc

[Igor Zinovik (izinovik)]

Also affects Fuel NSXv plugin.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/309423

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/mitaka
Review: https://review.openstack.org/310876

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/309423
Committed: https://git.openstack.org/cgit/openstack/fuel-web/commit/?id=cea2d5cc55de724fd9262803ca7472b0c59644ba
Submitter: Jenkins
Branch: master

commit cea2d5cc55de724fd9262803ca7472b0c59644ba
Author: Andriy Popovych <email address hidden>
Date: Fri Apr 22 17:04:02 2016 +0300

    Fix values for root plugin attributes

    Currently root plugin attributes values inconsistent with
    specific plugin version attributes provided by client. This patch
    fills plugin attributes with proper values for specific plugin version.

    Change-Id: I1c85d6e080f8fd16d5b65c1bf670fdfb3ba0ff1b
    Closes-Bug: #1573440

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/310876
Committed: https://git.openstack.org/cgit/openstack/fuel-web/commit/?id=691909b6372c279697607a3e28f20cacf0ce32e5
Submitter: Jenkins
Branch: stable/mitaka

commit 691909b6372c279697607a3e28f20cacf0ce32e5
Author: Andriy Popovych <email address hidden>
Date: Fri Apr 22 17:04:02 2016 +0300

    Fix values for root plugin attributes

    Currently root plugin attributes values inconsistent with
    specific plugin version attributes provided by client. This patch
    fills plugin attributes with proper values for specific plugin version.

    Change-Id: I1c85d6e080f8fd16d5b65c1bf670fdfb3ba0ff1b
    Closes-Bug: #1573440
    (cherry picked from commit cea2d5cc55de724fd9262803ca7472b0c59644ba)

[Vasily Gorin (vgorin)]

Verified on ISO 305 , plugin build number 373