Rocky Project Priorities

Rocky Project Priorities

This is a list of development priorities the Ironic team is prioritizing for Rocky development, in order of priority. Note that this is not our complete backlog for the cycle, we still hope to review and land non-priority items.

The primary contact(s) listed is/are responsible for tracking the status of that work and herding cats to help get that work done. They are not the only contributor(s) to this work, and not necessary doing most of the coding! They are expected to be available on IRC and the ML for questions, and report status on the whiteboard for the weekly IRC sync-up. The number of primary contacts is typically limited to 2-3 individuals to simplify communication. We expect at least one of them to have core privileges to simplify getting changes in.

Priorities

Priority Primary Contacts
Deploy Steps rloo, mgoddard
BIOS config framework zshi, yolanda, moddard, hshiina
Conductor Location Awareness jroll
Reference architecture guide dtantsur, jroll
Graphical console mkrai, anup-d-navare, TheJulia
Neutron Event Processing vdrok

Goals

Goal Primary Contacts
Updating nova virt to use REST API TheJulia
Storyboard migration TheJulia, dtantsur
Management interface refactoring etingof, dtantsur
Getting clean steps rloo, TheJulia
Project vision jroll, TheJulia
SIGHUP Support rloo

Stretch Goals

Note

Upon completion of Storyboard migration, the stretch goals documented here will be migrated to and tracked in Storyboard.

Stretch Goals Primary Contacts
Classic driver removal dtantsur
Redfish OOB inspection etingof, deray, stendulker
Zuul v3 playbook refactoring sambetts, pas-ha

Details

Deploy Steps

We created cleaning with the ability to compose an ordered list of actions to be taken. However we left deployment as a static set of actions.

In order to allow templates to apply using chosen traits, we want to have the same functionality and framework that we obtained with cleaning to apply to the deployment of a node.

This will start with the goal of splitting apart the action of writing the image during the deployment from the act of writing the configuration drive into two distinct steps. From there, we will further iterate.

This may ultimately facilitate de-duplication of deployment logic which was an uncompleted goal from the Queens development cycle.

BIOS config framework

Some drivers support setting BIOS (UEFI, etc) configuration out-of-band. We would like to introduce a framework (HTTP and driver API) for drivers to expose this feature to users.

Conductor location awareness

Often operators have made changes to driver names to facilitate mapping of conductors to individual nodes, such that conductors are local to nodes, and a conductor in Los Angeles is not trying to control machines in Europe.

This allows ironic to remain a single pane of glass, and provides increased flexibility in deployments of ironic. For now, we will focus on hard affinity with an upgrade path.

Reference architecture guide

To help new deployers make the right choices, we need a document describing a reference architecture for an ironic deployment, especially around multi-tenant networking and co-existing with VMs.

Graphical console

We need a way to expose graphical (e.g. VNC) consoles to users from drivers that support it. Specifications and patches are in various states, and need to be picked up again. We are hoping to have the initial framework to support graphical console usage in this cycle.

Neutron event processing

Currently ironic has no way to determine when certain asynchronous events actually finish in neutron, and with what result. Nova, on the contrary, uses a special neutron driver, which filters out notifications and posts some of them to a special nova API endpoint. We should do the same.

Updating nova virt to use REST API

Cycle after cycle we encounter issues with the upgrade sequence and the API version pin that we increment in the Nova virt driver that supports ironic.

It is time to put this to an end and better properly support versioned interactions with our API. Upon discussing with the Nova community, we reached consensus that it is time to transition our API calls to direct REST calls as opposed to calls through the python-ironicclient library.

Storyboard migration

Ironic has planned work in many different ways over the years, and we have learned that there are positives to each approach.

As our team has also become smaller, we must also enable better focus by integrating distinct tools, systems, and processes together.

With Storyboard, we will gain the advantage of planning and tracking work in a single system.

Management interface refactoring

As time has gone on, we have found the need to have a single place to control the boot mode for nodes. This effort is refactoring the management interface so we move distinct boot mode related actions into a single interface.

Getting clean steps

One of the biggest frustrations that people have with our cleaning model is the lack of visibility into what they can do. We have ideas on this and we need to begin providing the mechanisms to raise that visibility.

Project vision

We all have different ideas of where we would like to see ironic in two, five, and ten years. Discussing this as a group helped us scope and frame our discussions so we were on the same page.

We should write down our collective vision of the future, and see where it takes us.

SIGHUP support

SIGHUP is the signaling mechanism to indicate that a program should attempt to reload configuration and possibly restart itself. Supporting SIGHUP is an OpenStack project wide goal, and it should be easy for us. Let’s do it!

Classic driver removal

We have deprecated the classic drivers, and soon is approaching the time to remove these drivers now that we have provided a means to migrate users to hardware types. Deprecation took place on Feb 1, 2018, and thus this code can be removed after May 1, 2018.

Redfish OOB inspection

Redfish is one of our in-tree “reference” hardware types, however we have no support for out-of-band inspection. In terms of providing feature parity, we should move forward with this, as more vendors are moving to Redfish.

Zuul v3 playbook refactoring

One of the powerful features with Zuul v3 is that we execute ansible playbooks as opposed to traditional shell scripting. The migration left quite a bit of legacy shell scripts in the testing process.

Efforts are underway to remove the bulk of this launch scripting from our normal devstack jobs. We should expect our grenade jobs to remain untouched.

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