User is unable to save default host configuration from GUI when adding a new host

[Stephen Gooch]

The default boot_device and rootfs_device values for a new unconfigured host were updated from sda to /dev/sda in a recent update:
https://opendev.org/starlingx/config/blame/branch/master/sysinv/sysinv/sysinv/sysinv/db/sqlalchemy/models.py#L228
https://review.opendev.org/#/c/669726/10/sysinv/sysinv/sysinv/sysinv/db/sqlalchemy/models.py

However, the starlingx-dashboard uses a form validation for these values that rejects absolute paths other than /dev/disk/by-path. As a result, the default value of /dev/sda gets rejected and cannot be saved from the GUI:
https://opendev.org/starlingx/gui/src/branch/master/starlingx-dashboard/starlingx-dashboard/starlingx_dashboard/dashboards/admin/inventory/workflows.py#L521
https://opendev.org/starlingx/gui/src/branch/master/starlingx-dashboard/starlingx-dashboard/starlingx_dashboard/dashboards/admin/inventory/workflows.py#L529

[Ghada Khalil (gkhalil)]

stx.3.0 gating - GUI needs to be aligned to recent sysinv changes related to device names

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/687871

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/687871
Committed: https://git.openstack.org/cgit/starlingx/gui/commit/?id=241a01403496bf1a00bda1d2e991b9ac2f933e3f
Submitter: Zuul
Branch: master

commit 241a01403496bf1a00bda1d2e991b9ac2f933e3f
Author: Bin Qian <email address hidden>
Date: Thu Oct 10 08:17:58 2019 -0400

    Remove incorrect regex validator for rootfs and boot_device

    The regex restriction for the fields boot_device and rootfs_device are
    conflict against the default setting of both fields. The settings with
    absolute path ('/dev/disk/') work no problem.

    Change-Id: Ie8f8c4935bd5c1846f2d62c23d65b261e324cc5a
    Closes-Bug: 1846362
    Signed-off-by: Bin Qian <email address hidden>