LBaaS Agent Reference Implementation

implements blueprint lbaas-namespace-agent

This a reference implemention of the Quantum load balancing service
using HAProxy.  The implemention is designed for vendors, developers,
and deployers to become familiar with the API and service workflow.

This change also adds some constraint checks for data integrity.

Change-Id: I10a67da11840477ccf063b98149f4f77248802a1

etc/lbaas_agent.ini

@@ -0,0 +1,24 @@
+[DEFAULT]
+# Show debugging output in log (sets DEBUG log level output)
+# debug = true
+
+# The LBaaS agent will resync its state with Quantum to recover from any
+# transient notification or rpc errors. The interval is number of
+# seconds between attempts.
+# periodic_interval = 10
+
+# OVS based plugins(OVS, Ryu, NEC, NVP, BigSwitch/Floodlight)
+interface_driver = quantum.agent.linux.interface.OVSInterfaceDriver
+# OVS based plugins(Ryu, NEC, NVP, BigSwitch/Floodlight) that use OVS
+# as OpenFlow switch and check port status
+# ovs_use_veth = True
+# LinuxBridge
+# interface_driver = quantum.agent.linux.interface.BridgeInterfaceDriver
+
+# The agent requires a driver to manage the loadbalancer.  HAProxy is the
+# opensource version.
+device_driver = quantum.plugins.services.agent_loadbalancer.drivers.haproxy.namespace_driver.HaproxyNSDriver
+
+# Allow overlapping IP (Must have kernel build with CONFIG_NET_NS=y and
+# iproute2 package that supports namespaces).
+# use_namespaces = True

setup.py

@@ -137,6 +137,8 @@ else:
         'quantum-debug = quantum.debug.shell:main',
         'quantum-ovs-cleanup = quantum.agent.ovs_cleanup_util:main',
         'quantum-db-manage = quantum.db.migration.cli:main',
+        ('quantum-lbaas-agent = '
+         'quantum.plugins.services.agent_loadbalancer.agent:main'),
         ('quantum-check-nvp-config = '
          'quantum.plugins.nicira.nicira_nvp_plugin.check_nvp_config:main'),
     ]