baremetal: Integrate provisioning and non-provisioning interfaces

Originally, baremetal pxe/tilera driver managed two types of network
interfaces in two tables; provisioning interfaces in bm_nodes table
and non-provisioning (normal) interfaces in bm_interfaces table.
But, now actually both types are handled in the same way and there is
no difference between them except for which table they are in.

This patch moves the provisioning interfaces to bm_interfaces. However
it does not drop prov_mac_address in bm_nodes since VirtualPowerManager
still uses it to identify a target in a list of VMs returned by the
VM's host.

Change-Id: I5ce940e7127aa3b29ba7802612938dc5dbc3152f
Deprecate old vif drivers.

As per commit 4c0cecd3 (Change-Id I292c2fd7aa0c32b1c91d737152ed8e54ea2cf6ac)
Deprecate:
* LibvirtBridgeDriver
* LibvirtOpenVswitchDriver
* LibvirtHybridOVSBridgeDriver
* LibvirtOpenVswitchVirtualPortDriver
* QuantumLinuxBridgeVIFDriver

Change-Id: Iad854dfe91aaa18622f78aa92746d3ea2f986960
Define LOG globally in baremetal_deploy_helper

Since LOG = getLogger() has been moved from the global scope
to the function scope (main), the rest of the module could
not find LOG. This patch makes LOG global again.

Fixes bug 1165262

Change-Id: I2607802dcbed64135f75011a02ebce95519e4ea1
set timeout for paramiko ssh connection

set powervm connection timeout to 60 seconds
to eliminate crashing if ssh server is slow in
responding.

Change-Id: Ic7f4d092de73e73c6edb909713bf3a2347a50334
Fix error message in pre_live_migration.

We are using locals() to reference a variable which doesn't exist
in this error message. Also rename the instance variable while I
am here to be more consistent with other uses.

Resolves bug 1164072.

Change-Id: I96f5e2a81ac2e97181c3e87df83e19b381f4bcd2
Raise correct exception for duplicate networks

When using Quantum, if duplicate network ids are passed in on a
nova boot, nova-api raises a NetworkNotFound exception, which is
not correct.  This change causes it to raise a NetworkDuplicated
exception instead.

Fixes bug 1165088

Change-Id: I4f1f9aa5e1fa0e740b78e67760d924e2dd1d4d98
Encode consoleauth token in utf-8 to make it a str

This is needed for memcached backend, because the key cannot be a
unicode object in any of the exposed functions.

Fixes bug 1164784

Co-authored-by: Stanislaw Pitucha <stanislaw.pitucha@hp.com>

Change-Id: Ieb1429116d96eefe97564fe92631063dc16117cb
Cleanup trailing whitespace in api samples.

No functional changes.

Change-Id: I7511ba490bc0c86e80eda10a8246884338f57fdd
Clarify volume related exception message

Before the message was "status must be available," which could either mean
nova couldn't fetch the status or the status was not set to 'available'. As
this message means the latter, make it more explicit by putting available in
quotes.

Change-Id: I1b167073463c781569919926fa9b8960f4fecf59
Imported Translations from Transifex

Change-Id: I91007468d2da94bb669931ad09dce4c2f5d3efad
Add NOVA_LOCALEDIR env variable

Part of fixing bug #995287

Syncs these two commits from oslo-incubator:

  Support overriding oslo localedir too
  Add a gettextutils.install() helper function

to get a new gettextutils.install() function which allows the default
localedir to be overwritten via an environment variable.

Note that gettextutils.install() must be called before any other nova
modules are imported since some modules attempt to translate strings
at import time (e.g. the 'message' attributes on classes in
nova.exception). This is broken and inefficient, but fixing it involves
adding something like spinx's l_() function and would be very invaisve.

Also, note that calling gettextutils.install() in nova.cmd.__init__
means that no program which uses a different translation domain should
ever import any of the modules under nova.cmd.

Change-Id: I86562b3a65d371673bb21f7179eecc7602bc0775
Simplify random host choice.

The random Python module provides a handy funcion for choosing a random
element from a sequence.  Use that instead of a more manual method of
accomplishing the same thing.

Change-Id: I1908bd5e79b6c21d0dcf7e540143e9b8de478d24
Remove unnecessary parens.

This is just some random code cleanup.  It removes some unnecessary
parens in some conditional statements to be more consistent with the
style used elsewhere in the code.

Change-Id: I49951c0ffe2b50e0dee50552eb1ddbf7ff871ecf
Remove unnecessary LOG initialisation

Remove a lot of getLogger lines and imports of logging in modules
which never use that functionality.

Change-Id: Icdaee2c540980412b000d02ebf1ec568dcf5b38a
Remove multi scheduler.

This patch removes the multi scheduler.  It doesn't provide any value.
The only code that exists here is for passing through requests to the
compute scheduler.  There is nothing that uses the 'default' scheduler.

The only case where this code could have been useful is if it was
patched out of tree.  At that point, it seems easier to just provide
your own scheduler driver that does what you want instead of trying to
patch this one, IMO.

DocImpact: The multi scheduler no longer exists.

Change-Id: I30902d1ce0aa5baef6693dc4a3b1057cccb27841
Merge "Clarify volume related exception message"
Merge "Remove unnecessary LOG initialisation"
Merge "Cleanup trailing whitespace in api samples."
Fix typo: libvir => libvirt

Fix in fakelibvirt test

Change-Id: I7969df6e04808f5c14386d197b73c6d9a1c7dd44
xenapi: Make _connect_volume exc handler eventlet safe

`forget_sr` blocks and so clears the exception state causing the
subsequent raise to try to raise `None`, which fails.

Fixes bug 1167515

Change-Id: I18562c7389b152a6490d352c5a8d36934288f47d