Add train priorities
Change-Id: I396395207625d94244e15b627b4dbd0fa491b481
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Julia Kreger
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@ -15,6 +15,7 @@ those discussions:
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:glob:
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:maxdepth: 1
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priorities/train-priorities
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priorities/stein-priorities
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priorities/rocky-priorities
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priorities/queens-priorities
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193
priorities/train-priorities.rst
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193
priorities/train-priorities.rst
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@ -0,0 +1,193 @@
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.. _train-priorities:
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========================
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Train Project Priorities
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========================
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This is a list of priorities the Ironic team is prioritizing for
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Train development, in order of relative size and dependency addressing.
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Note that this is not our complete backlog for the cycle, we still hope
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to review and land non-priority items.
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The primary contact(s) listed are responsible for tracking the status of
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that work and herding cats to help get that work done. They are not the only
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contributor(s) to this work, and not necessarily doing most of the coding!
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They are expected to be available on IRC and the ML for questions, and report
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status on the whiteboard_ for the weekly IRC sync-up. The number of primary
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contacts is typically limited to 2-3 individuals to simplify communication.
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We expect at least one of them to have core privileges to simplify getting
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changes in.
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.. _whiteboard: https://etherpad.openstack.org/p/IronicWhiteBoard
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Goals
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~~~~~
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+---------------------------------------+-------------------------------------+
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| Priority | Primary Contacts |
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+=======================================+=====================================+
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| `Deploy Steps`_ | mgoddard, rloo |
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+---------------------------------------+-------------------------------------+
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| `Faster Deployments`_ | TheJulia, dtantsur, stendulker |
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+---------------------------------------+-------------------------------------+
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| `Bare metal program`_ | TheJulia, janders, hodgepodge |
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+---------------------------------------+-------------------------------------+
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| `Replacing WSME`_ | mkrai, dtantsur, kaifeng, rpittau |
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+---------------------------------------+-------------------------------------+
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| `Redfish Virtual Media`_ | etingof, rpittau |
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+---------------------------------------+-------------------------------------+
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| `Node retirement/quarantine`_ | arne_wiebalck, rpittau |
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+---------------------------------------+-------------------------------------+
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| `Software RAID`_ | arne_wiebalck, TheJulia |
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+---------------------------------------+-------------------------------------+
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Inter-Project Goals
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-------------------
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+---------------------------------------+-------------------------------------+
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| `State callbacks to nova`_ | arne_wiebalck, ??? |
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+---------------------------------------+-------------------------------------+
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| `SmartNIC Support`_ | TheJulia, mkrai, moshele |
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+---------------------------------------+-------------------------------------+
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Community Goals
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~~~~~~~~~~~~~~~
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+---------------------------------------+-------------------------------------+
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| Goal | Primary Contacts |
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+=======================================+=====================================+
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| `IPv6 support`_ | TheJulia, derekh, dtantsur, ??? |
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+---------------------------------------+-------------------------------------+
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| `Single document generation`_ | kaifeng, rpittau |
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+---------------------------------------+-------------------------------------+
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Details
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~~~~~~~
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Deploy Steps
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---------------
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As a general theme of work for the Train Cycle, the Ironic project community
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wishes to break the monolithic deployment step into multiple deployment steps
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which will further enable operators to easily create more complex
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declaritive deployments. This work also includes the the ability to trigger
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steps through the agent, something that is not presently possible today.
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Faster Deployments
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------------------
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A repeating theme from the operator community is for ways to speed up the
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overall deployment time and enable faster time to deployment.
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Ironic has completed some work in this area with the
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`Fast Track Deployments <https://storyboard.openstack.org/#!/story/2004965>`_,
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But there are other areas that can and should be explored by the community.
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Bare metal program
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------------------
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The most powerful thing the Ironic community can do this cycle is not actually
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in code, but in documentation. The recently created
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`Bare Metal SIG <https://etherpad.openstack.org/p/bare-metal-sig>`_ is working
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on creation of a white paper as part of the
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`Bare Metal logo program <https://www.openstack.org/bare-metal/>`_, and needs
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our help for stand-alone use cases.
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Replacing WSME
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--------------
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Most long time contributors are aware of the headaches that WSME has brought
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the community, along with the fact that many projects have migrated away from
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it.
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In order to move us to something which is supported by a broader community,
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the consensus from the Train Project Teams Gathering, was to move ironic
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towards using Flask. We'll start with re-working a single endpoint and
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hopefully move through the rest of the API in a rapid fashion.
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Redfish Virtual Media
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---------------------
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One of the most powerful features we can offer to operators with distributed
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and edge ironic nodes is to offer booting the ramdisk via a generic
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Redfish Virtual Media boot interface. This will enable greater comptability
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and once completed in-gate testing of virtual media relate scenarios in CI.
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More information can be found in
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`story 1526753 <https://storyboard.openstack.org/#!/story/1526753>`_.
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This work is also a logical step towards the
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`L3 based deployments specification <http://specs.openstack.org/openstack/ironic-specs/specs/approved/L3-based-deployment.html>`_.
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Node retirement/quarantine
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--------------------------
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Larger operators with Ironic have found themselves approaching a quandry of
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"What is the proper way to retire a machine from ironic?". A nearly identical
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topic has arisen from the Telecom world seeking to represent the state of the
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node more accurately with-in ironic as to represent if a machine is in a fault
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state or questionable state under-going investigation.
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With that being said, we feel that we need to extend our states and state
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machine to better fit these overall themes.
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Software RAID
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-------------
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Software RAID support has been long desired after by larger operators to help
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manage COTS server hardware where Hardware RAID controllers are undesirable
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or prohibitive. Work started during the Stein cycle to support this
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functionality, and work continues! You can learn more in the
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`Software RAID specification <https://specs.openstack.org/openstack/ironic-specs/specs/not-implemented/software-raid.html>`_.
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State callbacks to nova
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-----------------------
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One of the headaches and performance issues for larger operators is
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the nature of power synchronization when nova is in use, as nova
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performs a large number of API calls to update its database with
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node power state. At larger scales, this is inefficient and results
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in the power state nova having on record from being out of state
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from ironic as the source of truth.
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Conversely, nova presently assumes that it is always authorative
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in regards to power states. This work will allow ironic to inform
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nova of the new power state such that nova does not attempt to
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reset the power state.
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While this is largely an effort in the nova project, we need to be
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aware and attempt to support this work to move foward.
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The nova-spec document can be found in review as
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`change 636132 <https://review.opendev.org/#/c/636132/>`_.
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SmartNIC Support
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----------------
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Smartnics complicates ironic as the NIC needs to be programmed with the
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power in a state such that the configuration on the NIC can be changed.
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While the work in Ironic was completed this past cycle ahead of expectations.
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Work is on-going in Neutron this cycle to merge the functionality to make
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this available to users.
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The story can be found at `story 2003346 <https://storyboard.openstack.org/#!/story/2003346>`_.
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IPv6 support
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------------
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The Technical Committee is presently finalizing a goal for the Train cycle for
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projects to support and test IPv6-only deployments.
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More information can be found in `change 657174 <https://review.opendev.org/#/c/657174>`_.
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Single document generation
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--------------------------
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A goal from the Technical Committee is for each project to support the
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generation of a single PDF document for the whole of the documentation tree.
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More information on this community goal can be in governance
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`pdf doc generation goal <https://governance.openstack.org/tc/goals/train/pdf-doc-generation.html>`_
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documentation.
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