Embrane Neutron Plugin

Implements blueprint embrane-neutron-plugin

This commit implements the main Embrane plugin, which covers
route and extratoute extensions.

The plugin will rely on existing plugins for leveraging L2 networks,
for now it only supports OpenVSwitch and vlan networks, but more
supports are to come if the model is approved (or a different one
is suggested).

Change-Id: I90aff8ec4324bd3a7c59c411374db6a118d1a72b
Fixes formatting exception from logging in BigSwitch plugin

Corrects the data type expected for the HTTP code that comes
back from the back-end controller in a debug log call.

Closes-Bug: #1220521
Change-Id: Ic71b24c724222ade5e695addf291c6488d665da9
Add jump to float-snat chain after clearing snat chain

Clearing the chain in this code eliminates the rule to jump to the
floating-snat chain.  This is the simplest way to get it working
again.

Change-Id: Ic1818e10bd64170b6f0a2f52af8dc0814d7e04e0
Fixes: Bug #1218040
Add Neutron l3 metering agent

This is the agent side of :
blueprint bandwidth-router-measurement
blueprint bandwidth-router-label

This patch initiates agent side by adding a new
l3 metering agent and a Noop Driver.

DocImpact

Change-Id: Ib34721209c282b2669ff5488a33293d9f86467ef
Adding more unit tests for the FWaaS agent

Change-Id: Ic3de53ed9fa47f6518cbb25dac4ee7782c97bfbb
Fixes: bug #1215771
Implement ML2 port binding

The ml2 plugin uses mechanism drivers to determine which network
segment and what VIF driver to use for a port. Mechanism drivers
supporting the openvswitch, linuxbridge, and hyperv agents are
added. The binding:host attribute is set on ports belonging to the
dhcp and l3 agents so that they can be bound.

To use with devstack until it is updated, set
"Q_ML2_PLUGIN_MECHANISM_DRIVERS=openvswitch,linuxbridge" in localrc.

The hyperv L2 agent does not currently implement the agents_db RPC,
and will therefore not work with its ml2 mechanism driver. This issue
will be tracked as a bug to be fixed in a separate merge.

implements blueprint: ml2-portbinding

Change-Id: Icb9c70d8b0d7fcb34b57adc760bb713b740e5dad
Verify MTU is valid for ipsec_site_connection

Since the check relies on the vpnservice subnet to determine whether
this is IPv4 ro IPv6, we must check in the plugin. Test is done at
create/update time and ensures that the MTU is equal to or greater
than the minimum allowed values, which are set to 68 for IPv4
minimum and 1280 for IPv6, respectively.

Refactored code to allow reuse of create and update test functions,
by allowing tests to override some settings, and to provide a dict
of changed items (for update).

bug 1219489

Change-Id: I3e62ef786d3a02c761903a15d546ee8758c0bf7f
Introduce periodic state synchronization with backend

Blueprint nicira-plugin-get-improvements

With this patch GET operations on the Nicira plugin will not
be forwarded anymore to the NVP backend.
Resource operational status will be periodically retrieved from
the NVP backend using a DynamicLoopingCall.
The process has been designed with the aim of avoiding:
1) frequent queries to NVP for retrieving resource status
2) execution of large queries to NVP for retrieving the status
   of a consistent number of resources.
The process can be tuned using a set of configuration variables.
GET operations will now return a status which might differ
from the actual status of the resource. For retrieving status
in a punctual way, the field 'status' should be explicitly
specified in the GET request (only 'show' support has been
implemented in this patch)

This patchs also makes some changes to the fake nvp api client in
order to ensure each instance has a private set of dictionaries for
fake nvp entities.

Change-Id: Ia745b80d2826de32ba8d6883c0d6e0893047e123
Merge "Implement ML2 port binding"
Merge "Verify MTU is valid for ipsec_site_connection"
Reference driver implementation (IPsec) for VPNaaS

Implements blueprint ipsec-vpn-reference

This patch implements reference driver implementation for VPNaaS.
The driver uses openswan to manage vpn connections.

Future work: Support ikepolicy and ipsec update
Support service type framework
Intelligent updating of resources

This commit adds jinja2 for requirements.txt for
generating cofig file.

Change-Id: I8c5ed800a71ca014dc7bdbb6a57c4f8d18fa82e0
OpenFlow distributed router support in NEC plugin

Implements blueprint nec-distribute-router

Two types of neutron router will be supported: l3-agent and distributed.
A type can be specified through "provider" attribute of a router.
The naming of the attribute "provider" is intentional since I plan to
support the service provider framework for router in the future and
would like to make it easy to migrate.

distributed router in NEC OpenFLow controller now does not support NAT,
so l3-agent and distributed router coexists. To achieve it, l3-agent
scheudler logic is modified in NEC plugin to exclude distributed routers
from candidates of floating IP hosting routers.

To support the above feature, the following related changes are done:
- Adds a new driver to PFC driver which supports OpenFlow based router
  support in NEC OpenFlow products in PFlow v5.
- Update ofc_client to extract detail error message
  from OpenFlow controller

This commit also changes the following outside of NEC plugin:
- Makes L3 agent notifiers configurable.
  l3-agent router and OpenFlow distributed router can coexist.
  Notication to l3-agent should be done only when routers are
  hosted by l3-agent, so we need custom L3 agent notifiers
  to filter non l3-agent routers.
- Split test_agent_scheduler base class (in OVS plugin) into
  the base setup and testcases. By doing so we can implement
  custom testcases related to agent scheduler.

Change-Id: I538201742950a61b92fb05c49a9256bc96ae9014
LBaaS: add status of pool-monitor association to the pool return dict

Closes-Bug: #1219692
Change-Id: Icc7ca4a48c43a8462860cdbc42626079bffadc26
Merge "Adding more unit tests for the FWaaS agent"
Merge "Introduce periodic state synchronization with backend"
Merge "Add Neutron l3 metering agent"
Merge "LBaaS: add status of pool-monitor association to the pool return dict"
Merge "Fixes formatting exception from logging in BigSwitch plugin"
Merge "OpenFlow distributed router support in NEC plugin"
Merge "Embrane Neutron Plugin"