Add Core, Ram and Disk filter to fake virt setting

The FakeVirt driver shouldn't need custom scheduling options, so it run
instead of a real virt driver for testing purposes. This simplifies the
use case where someone wants to run the FakeVirt driver along side a
real driver so someone can test there cloud application without wasting
real instances.

Since the FakeVirt driver should look like it has near infinite resources,
turn on Core, Ram and Disk filters to make sure the drive works with them
enabled.

Change-Id: Ic7ec87e4d497d9db58eec93f2b304fe9770a2bbc
Related-Bug: #1268943
Enable security group extension in PLUMgrid plugin

Implements: blueprint plumgrid-neutron-security-groups
Change-Id: I30392adff5e3250a1c4f9f1f04fc7e0587007226
Ensure sbin is in PATH.

Some distros (Debian) don't have sbin in PATH for non-root users.

Nova (and possibly other services) assumes that it can invoke "sysctl"
without sudo.

Change-Id: Iced21fc1378af309fb49688f9b63f2cd8383e304
Closes-Bug: #1300800
Use mod_version to clean-up apache version matching

This change uses mod_version (shipped by default on everything we care
about) to set-up version-specific config within apache rather than
within devstack scripts.

Clean up the horizon and keystone config file generation to use the
internal apache matching.

Since I6478db385fda2fa1c75ced12d3e886b2e1152852 the apache matching in
'functions' is actually duplicated.  just leave get_apache_version in
lib/apache as it is used for config-file name matching in there.

Change-Id: I6478db385fda2fa1c75ced12d3e886b2e1152852
Re-order stack.sh 3: logging and error traps

Part 3 of a series

Re-order the setup and check bits in the top portion of stack.sh to
have a logical flow with similar things done together.

No behaviour changes are intended aside from the order of execution.
Any such changes are bugs.

* Move logging and error configuration earlier to cover initial project setup.

Change-Id: Ib16bbe20f224b1cf5e86c7a2fda0d9472c108873
XenAPI: Fix race condition waiting for VM to start

Buildroot on Ubuntu Trusty is slow to populate the vnc-port.
Wait for 20 seconds until the port is populated.

Change-Id: I50e5b5a161207d46e8ce0e304d816e8e5b68dbe8
Install MySQL-python for keystone with rpm system

MySQL-python is needed for keystone and we were installing it
implicitely only for apts and not for rpms. Fix keystone only devstack
install on a pristine vm.

Change-Id: I0d117513af4e2ad58635f7a7b22f7a6e3ff36a38
Set default API_WORKERS

Set the API_WORKERS default to control memory usage. Maximum is nproc / 2 and
minimum is 2.

* Also updates https://review.openstack.org/#/c/117517/ to remove the
  conditional test as API_WORKERS should always be set.
* Update https://review.openstack.org/#/c/109058/ for ceilometer to use API_WORKERS

The following reviews can move forward either as-is or with minor tweaks:
* Keystone: https://review.openstack.org/#/c/121384/ - remove the if check
* Swift: https://review.openstack.org/#/c/121456/ - unabandon, the default
  to 1 is fine, or remove it to match the others.
* Trove: https://review.openstack.org/#/c/121438/ - remove the if check

https://etherpad.openstack.org/p/devstack-workers has the details

Change-Id: Id28d72ebf01c88b7df301edf7d1dd7ec23fcd0d6
Make Swift uses API_WORKERS

Keep the default to 1 instead of going wild, cause Swift really would
kill the VM if we let it go (and keeps the old behavior).

Change-Id: I7449c1bb485459169b8870c871b887cbab8be865
Add trove-api to $API_WORKERS

Ie4bb075310a61a0873c9e56e4974600dbb4794a1 missed trove when adding
support for $API_WORKERS.

Change-Id: Iaeb43ef63596a61ad9c128e57d6a2d68b688719e
Updates DevStack to match Zaqar's API name change

Zaqar is a messaging service which provides support for different
messaging patterns and messaging related semantics.
This fix changes the old API name -queuing- to a more accurate name, -messaging-.

Change-Id: I07ca6ca704a4f07d88c192a5ce1a7c626de1fcea
Merge "Set default API_WORKERS"
Configurable Keystone admin workers

The API_WORKERS option wasn't setting the number of admin workers
for the Keystone server when running in eventlet mode. This will
allow for control of throughput and memory usage.

Change-Id: Iecbce4a601f93784164e53d8b0c542d48f7b5650
Merge "Add trove-api to $API_WORKERS"
Merge "Make Swift uses API_WORKERS"
Merge "Configurable Keystone admin workers"
Merge "Install MySQL-python for keystone with rpm system"
Merge "Add Core, Ram and Disk filter to fake virt setting"
Function for auth_token middleware config

Each project was configuring the auth_token middleware using several
lines of inisets. Since all the projects should configure the
auth_token middleware in the same way create a function and call it.

Change-Id: I3b6727d5a3bdc0ca600d8faa23bc6db32bb32260
Merge "Updates DevStack to match Zaqar's API name change"