Spec for the brocade lbaas driver based on v2 lbaas data model
Change-Id: I73cf24b20ed93ea2f069f3b54e7d1e9070fe8fc4
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Pattabi Ayyasami
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===================================================
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Brocade LBaaS Plugin Driver (v2 Data Model Support)
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===================================================
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Problem Description
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===================
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URL of the launchpad blueprint:
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https://blueprints.launchpad.net/neutron/+spec/neutron-brocade-lbaas-driver
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Brocade LBaaS Plugin and Driver for the Brocade ADX Load Balancer Devices
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for the LBaaS in Neutron.
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Proposed Change
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===============
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The driver will implement the interfaces according to the driver interfaces
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mentioned in the spec https://review.openstack.org/100690
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for the blueprint
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https://blueprints.launchpad.net/neutron/+spec/lbaas-objmodel-driver-changes
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The following managers will be implemented:
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* LoadBalancerManager
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* ListenerManager
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* PoolManager
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* MemberManager
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* HealthMonitorManager
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Implementation is composed of Plugin Driver and Brocade Device Driver.
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Brocade LBaaS Plugin Driver extends/implements the driver interfaces
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as mentioned above and forwards the request to the device driver.
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The device driver communicates with the Brocade ADX Load Balancer
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Device (Physical and Virtual) via SOAP/XML APIs.
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The device driver use SUDs python module for the SOAP/XML API calls.
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Supported Features
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Protocols: HTTPS, HTTP, TCP
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LB Algorithms: ROUND_ROBIN, LEAST_CONNECTIONS
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Session persistence: SOURCE_IP
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Health Monitoring: TCP, HTTP, HTTPS
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Stats retrieval
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CRUD on loadbalancer, listener, pool, healthmonitor, member
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Additional lbaas features supported as part of framework in kilo release
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(TERMINATED_HTTPS, L7 etc)
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Product Versions supported
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ADX 12.5 and above
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Virtual ADX 3.0, 3.1 and above
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Exceptions
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Brocade LBaaS Device Driver will raise one of the following exceptions
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ConfigError . Raised when a configuration exception occurs
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on the load balancer device
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UnsupportedFeature . Raised when a particular feature is not yet
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supported by the Device Driver
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UnsupportedOption . Raised when an unsupported value is
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specified for an attribute.
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Data Model Impact
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-----------------
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None
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REST API Impact
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---------------
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None
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Security Impact
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---------------
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None
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Notifications Impact
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--------------------
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None
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Other End User Impact
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---------------------
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None
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Performance Impact
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------------------
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None
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IPv6 Impact
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-----------
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Will support ipv6 at the same level as neutron lbaas.
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Other Deployer Impact
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---------------------
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service_provider entry in the neutron-lbaas.conf file needs to be
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updated to reflect Brocade as one of the service_provider for
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the plugin to be effective.
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Brocade Device Driver must be installed prior to using this driver
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Developer Impact
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----------------
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None
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Community Impact
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----------------
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None
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Alternatives
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------------
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None
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Implementation
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==============
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Assignee(s)
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-----------
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https://launchpad.net/~pattabi
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Work Items
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----------
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* Brocade plugin driver code
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* Unit tests
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* Voting CI
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Dependencies
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============
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* https://blueprints.launchpad.net/neutron/+spec/lbaas-api-and-objmodel-improvement
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Testing
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=======
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- Unit Tests
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- Brocade QA
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- Existing LBaaS tests provide complete coverage, if driver is installed
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and configured (as our CI will do)
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Tempest Tests
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-------------
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Brocade ADX CI will run existing LB tempest tests with Brocade ADX/vADX.
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Functional Tests
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----------------
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Brocade ADX CI will run existing LB functional tests with Brocade ADX/vADX.
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API Tests
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---------
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Brocade ADX CI will run existing LB API tests with Brocade ADX/vADX.
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Documentation Impact
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====================
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None
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User Documentation
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------------------
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None
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Developer Documentation
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-----------------------
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None
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References
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==========
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None
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