4.3 KiB
Mellanox Fuel plugin
In Fuel 5.1, support for Mellanox high performance Ethernet virtualization and storage features has been added.
Starting with version 6.0, Fuel supports a Pluggable architecture.
Mellanox Fuel plugin adds support for Mellanox high performance features for Mirantis Opesntack, over Ethernet and Infiniband networks, built using ConnectX-3 family Adapters.
Mellanox high performance features are currently includes Mellanox SR-IOV mechanism driver for neutron ML2 plugin and RDMA extension for iSCSI (iSER) in Cinder.
Problem description
Fuel Supports Mellanox features for Ethernet only in a non pluggable approach.
Proposed change
Implement a Fuel plugin that will install and configure Mellanox high performance features, upon user request, over Ethernet and Infinband networks.
Alternatives
It might have been implemented as part of Fuel core but we decided to make it as a plugin for several reasons:
- This isn't something that all operators may want to deploy.
- Any new additional functionality makes the project's testing more difficult, which is an additional risk for the Fuel release.
Data model impact
None
REST API impact
None
Upgrade impact
None
Security impact
None
Notifications impact
None
Other end user impact
None
Performance Impact
Installing Mirantis Openstack over Mellanox ConnectX-3 family Adapters, increases the cluster performance dramatically, and enables RDMA (Remote direct memory access) between virtual machines and in storage initiators to targets.
Other deployer impact
None
Developer impact
None
Implementation
The plugin delivers official Mellanox Openstack packages, in order to enable Neutron SR-IOV and Cinder iSER high performance features. This plugin replaces the bootstrap image, in order to transparently discover the nodes hardware, over Ethernet and Infiniband networks. This Plugin has several tasks:
- Start Mellanox plugin log.
- Update the configurations yaml to include mellanox plugin settings, that has been chosen by the user.
- Verify that kernel devel packages are installed and install the relevant MLNX_OFED packages, for using Ethernet/Infiniband network over Mellanox hardware.
- Enable SR-IOV settings, if neutron has been chosen to use SR-IOV.
- Establish a special interface for storage network, that supports RDMA, if iSER has been chosen.
- Deploy puppets for Controller, Compute and Cinder roles, with the relevant changes needed for iSER / SR-IOV (in case of using each).
- Replace the glance cirros image with an image that supports SR-IOV (in case of using SR-IOV).
Assignee(s)
Aviram Bar-Haim <aviramb@mellanox.com> (Release manager)
Andrey Yevsyukov <andreyy@mellanox.com> (Developer)
Gil Meir <gmeir11@gmail.com> (Developer)
Amichay Polishuk <amichayp@mellanox.com> (QA engineer)
Noam Angel <amichayp@mellanox.com> (QA engineer)
Lenny Verkhovsky <lennyb@mellanox.com> (Verification engineer)
Rawan Herzallah <rherzallah@asaltech.com> (Verification engineer)
Murad Awawdeh <mawawdeh@asaltech.com> (Verification engineer)
Work Items
- Implement the Fuel plugin.
- Implement the Puppet manifests.
- Testing (CI verification and QA automatic and manual tests).
- Write the documentation.
Dependencies
- Fuel 6.1 and higher.
Testing
- Prepare a test plan.
- Test the plugin by deploying environments with all relevant Fuel deployment modes.
- Test extensive cases for SR-IOV and iSER features over Ethernet and Infiniband networks.
Documentation Impact
- Deployment Guide (how to install the plugin, how to configure and deploy an OpenStack environment with the plugin).
- User Guide (which features the plugin provides, how to use them in the deployed OpenStack environment).
- Test Plan.
- Test Report.