Open Queens spec directory
* Move Pike incompleted efforts to backlog * Archive Ocata specs that were not reproposed for Pike * Open Queens directory. Change-Id: I80e4aefe5700f6c1dcf1037f22bf58b5d23ea95d
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Neutron Project Specifications
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==============================
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Queens
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======
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.. toctree::
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:glob:
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:maxdepth: 1
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specs/queens/*
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Pike
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====
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..
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This work is licensed under a Creative Commons Attribution 3.0 Unported
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License.
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http://creativecommons.org/licenses/by/3.0/legalcode
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====================================================================
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Adding agent-less driver support for neutron-dynamic-routing project
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====================================================================
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[RFE] neutron_dynamic_routing project is bound to rpc driver closely
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https://bugs.launchpad.net/neutron/+bug/1611632
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Problem Description
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===================
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The current module `BgpPlugin.py <https://github.com/openstack/neutron-dynamic-routing/blob/master/neutron_dynamic_routing/services/bgp/bgp_plugin.py#L41>`_ is bound to RPC driver so closely, so it is not
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working well with the agent-less driver. Another problem is the neutron-dynamic-routing
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project does not follow the service provider registration mechanism. Currently, for all
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advanced service features, all projects are using service provider to load the driver,
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so from this view, the `neutron-dynamic-routing <https://github.com/openstack/neutron-dynamic-routing/blob/master/neutron_dynamic_routing>`_ project needs to be refactored.
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Proposed Change
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===============
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Refactor the current neutron-dynamic-routing code to make sure all agent/agent-less
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drivers work well.
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1. Make BgpPlugin.py as an overall interface to load different BGP drivers. The
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service name will be DYNAMIC_ROUTING.
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2. Add a new configuration file neutron_dynamic_routing.conf to specify the
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service_providers, currently, the default service provider is RPC agent driver.
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3. The existing bgp_dragent.ini will be used by the RPC driver such as RYU driver and
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quagga driver.
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4. Create a new directory to locate the BgpRpcPluginDriver. The BgpRpcPluginDriver will
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do what the current BgpPlugin did, for example, setup rpc and register callback.
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Configuration file impact
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--------------------------
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Add a new neutron_dynamic_routing.conf to specify the service_providers.
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service_provider = DYNAMIC_ROUTING:PRCDriver:neutron_dynamic_routing.services.bgp.service_drivers.rpc_bgp.BgpRpcPluginDriver:default
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Behaviour Changes
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-----------------
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Currently, for devstack, the dynamic routing agent (DR agent) is started by default. After the code refactor, the DR agent is
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only started when the RPC service provider is enabled. But there will not be any behavioural changes because the
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RPC back-end which is the current behaviour will remain as it is.
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References
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==========
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https://github.com/openstack/neutron-lbaas/blobl/master/neutron_lbaas/services/loadbalancer/plugin.py
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