Port rescue API to v3 Part 1

This changeset only copies the v2 files (implementation and test)
into the appropriate v3 directories unchanged. The copy as-is
will not be loaded by either the v2 or v3 extension loaders. The
second changeset will then make the changes required for it to
work as a v3 extension.

This is being tried in order to make reviewing of extension
porting easier as gerrit will display only what is actually
changed for v3 rather than entirely new files

Partially implements blueprint nova-v3-api

Change-Id: I8dc2b42b4ffb4618978856d5520485cd34e726d9
Port rescue API to v3 Part 2

This patch contains the changes required to adapt the rescue
extension and the corresponding unittest to the v3 framework

Partially implements blueprint nova-v3-api

Change-Id: Iaa6d0cf7708b0887512db952b1e26ccde75d24ef
Port evacuate API to v3 Part 1

This changeset only copies the v2 files (implementation and test)
into the appropriate v3 directories unchanged. The copy as-is
will not be loaded by either the v2 or v3 extension loaders. The
second changeset will then make the changes required for it to
work as a v3 extension.

This is being done in order to make reviewing of extension porting
easier as gerrit will display only what is actually changed for v3
rather than entirely new files

Partially implements blueprint nova-v3-api

Change-Id: I2c77b445b1e7a1b63993ae86cebea9922e9d098c
Port evacuate API to v3 Part 2

This patch contains the changes required to adapt the evacuate
extension and the corresponding unittest to the v3 framework

Partially implements blueprint nova-v3-api

Change-Id: Id9ca6a7a92a087cb063fe265af1ad6a626c63510
Adds support for the Indigo Virtual Switch (IVS)

Implements: blueprint ivs-vif-driver

Adds line to rootwrap config to allow call to ivs-ctl to control the Indigo switch.
Adds a new 'ivs' VIF type in network/model.py.
Adds support to the LibvirtGenericVIFDriver class for the IVS switch.
Adds functions to linux_net.py to create and delete IVS vif ports.
Adds unit tests to test the new IVS methods.

Change-Id: I65436b82f65374103644af8aba9dba14ba73f94c
Adds v3 API extension discovery filtering

Adds ability for a v3 loaded extension to be visible in
/v3/extensions to be dependent on the discoverable action policy
for that extension. Note that this does not actually effect whether
or not the functionality provided by the extension is accessible

Implements blueprint nova-v3-api-filter

Change-Id: I3f6ba7ea59e7abfa9d57b79ab18aa5b675e64118
Cells: Add support for global cinder

Implements cinder support for compute cells when cinder is a global
installation.  Adds syncing of the block device mapping table between
child cells and API cells.

Implements blueprint cells-cinder-support

Change-Id: Ife5be9922db0742c8ee4f970517396be86597cce
Cleanup overshadowing in test_evacuate.py

Fixes overshadowing problem of uuid in test_evacuate identified in
the v2 to v3 evacuate port but separated into a separate changeset
to fix both the v2 and v3 versions at the same time

Change-Id: If1006d86eab7198484a6d5f82a3f3f328724f4d4
Quantumapi returns an empty network list

When nova retries network list and if the list is empty, quantumapi
should return a empty list instead of an empty dictionnary.

Fixes bug 1189976

Change-Id: I5b8c498a6c86e92d0de14d8de9e55722408c5669
port agent API into v3 part1

This changeset only copies the v2 files into the appropriate v3
directories unchanged. The copy as-is will not be loaded by either
the v2 or v3 extension loaders. The second changeset will then
make the changes required for it to work as a v3 extension.

This is being tried in order to make reviewing of extension
porting easier as gerrit will display only what is actually
changed for v3 rather than entirely new files.

Partially implements: bp v3-api-extension-versioning

Change-Id: Ib7c489769d9b07797366be5920cc23ab2074a768
Change resource links when url has no project id

This patch allow response body to be look like the request url. So if a
project_id is passed the resource links on the response will also have a
project_id, and in the case of api-v3 where project_id are no longer present in
the url the response will not have it either.

Complements bp v3-api-remove-project-id.

Also fix two minor issues on the unit tests, which were breaking with this
change:
 - When doing ServersViewBuilderTest there was no api version specified.
 - ServersControllerTest was duplicating api version on the application url.

Change-Id: I872332ef56b4b6e99fedb43833ad45e8e654f44f
Port flavors core API to v3 tree

Port flavors core API (which does *not* include all extensions, like flavor
create) to the V3 API, adapting the way it's loaded to fit with the new
extension framework and, of course, its tests.

This also change the flavors requests and responses links on unit tests since
project_id  is no longer present on v3 url

Partially implements blueprint v3-api-core-as-extensions

Change-Id: Ide2eb22a89be3bd9adcf5e09cbef23e824a83fc1
Organize limits units and per-units constants

During v3 api review there was an agreement that would be nice to move limits
constants to utils file and refactor its usage inside limits api to avoid
unnecessary code duplication.

Also changed TestLimiter class to MockLimiter since that name can be confuse to
some unit test frameworks.

Change-Id: I1b8626e8d1e3257333d4dfee61591fd4cde82bd1
Port cells extension to v3 API Part 1

This changeset only copies the v2 files (implementation and test)
into the appropriate v3 directories unchanged. The copy as-is
will not be loaded by either the v2 or v3 extension loaders. The
second changeset will then make the changes required for it to
work as a v3 extension.

This is being done in order to make reviewing of extension porting
easier as gerrit will display only what is actually changed for v3
rather than entirely new files

Partially implements blueprint nova-v3-api

Change-Id: Ie629ee328d76a1595350b597c7874b430217c769
Enforce sqlite-specific flow in drop_unique_constraint

The nova.db.sqlalchemy.apy.drop_unique_constraint method has a
sqlite-specific flow for dropping unique constraints because it can't
use alter table like mysql or postgresql. The code is explicitly
checking if the db engine is mysql or postgresql and then falls into a
block which assumes the backing db is sqlite. This can cause problems if
the backing db is not sqlite.

This patch simply switches the checks so that the sqlite-specific flow
is only ran if the backing db is sqlite, everything else will default to
the 'alter table' flow.

Change-Id: I23b9bf33d18df3ac36106d5800a8ecdd1a4018df
Fix the ServerPasswordController class doc string

The code must have been copied from the flavor access extension to start
with and the old class doc string was left in place.

Fixes bug 1191232

Change-Id: Ie60ea629270c8185abc05fd4e08bbd7a9945c2b5
libvirt fix resize/migrates with swap or ephemeral

Fixes bug 1191608

The code was not properly guarding against backing files not
existing with QCOW2 images. As such, get_disk_backing_file() would
return None, then the subsequent call to basename() on None would
cause an exception.

This bug was introduced with the fix for bug 1185588 and commit
6e768363.

Change-Id: I4b1237ddf01b9398bfdc141180260136b36cae5a
Port fping extension to v3 API Part 1

This changeset only copies the v2 files (implementation and test)
into the appropriate v3 directories unchanged. The copy as-is
will not be loaded by either the v2 or v3 extension loaders. The
second changeset will then make the changes required for it to
work as a v3 extension.

This is being done in order to make reviewing of extension porting
easier as gerrit will display only what is actually changed for v3
rather than entirely new files

Partially implements blueprint nova-v3-api

Change-Id: I55d15ab5f9f59a83dc67bac2d2f41ceee06085d5
Port server_diagnostics extension to v3 API Part1

This changeset only copies the v2 files (implementation and test)
into the appropriate v3 directories unchanged. The copy as-is
will not be loaded by either the v2 or v3 extension loaders. The
second changeset will then make the changes required for it to
work as a v3 extension.

This is being done in order to make reviewing of extension porting
easier as gerrit will display only what is actually changed for v3
rather than entirely new files

Implements blueprint nova-v3-api

Change-Id: I52f906948b5873cf3fdfff14270c7384ee5e7b9f
Don't deallocate network if destroy time out

Fixes bug #1169057
Sames as bug 1180178, if libvirt returns time out error during destroy
an instance, we also can't deallocate the network of the instance,
otherwise the fixed ip of it may be re-used by another new instance,
and resulted in the new instance can't be accessed by the fixed ip.

Change-Id: I04dfd21bb1b7168abc71f39e836126a11dad6d8d