[openstack-dev] [ironic] Removal of the ipminative / pyghmi driver

Pavlo Shchelokovskyy pshchelokovskyy at mirantis.com
Fri Mar 10 09:30:48 UTC 2017

Hi all,

small note for future - we could re-evaluate possibility of testing this
driver on gates with VMs when qemu version with BMC support (plus
[python-]libvirt support for such functionality) is generally available in

In this case we could stop using virtualbmc and use qemu natively. Not sure
how valuable such testing would be, but it won't for sure be pyghmi talking
to pyghmi.


Dr. Pavlo Shchelokovskyy
Senior Software Engineer
Mirantis Inc

On Thu, Mar 9, 2017 at 8:40 PM, Dmitry Tantsur <dtantsur at redhat.com> wrote:

> On 03/09/2017 07:19 PM, Jay Faulkner wrote:
>> Hi all,
>> The ipminative driver Is currently an anomaly in ironic’s tree, despite
>> the driver being initially deprecated in Newton[1], and   our desire to
>> drop them reiterated on the mailing list in December[2], it was has not
>> been removed from the tree prior to the Ocata release.
>> At the PTG the ironic team had a short discussion about the ipminative
>> (aka pyghmi) driver — the conclusion was that unless third party CI was run
>> against the driver, we would be forced to follow through on the deprecation
>> and remove it. Testing in upstream CI, against VirtualBMC, was mostly
>> rejected due to both the ipminative driver and virtualbmc using the same
>> python ipmi library (pyghmi), and therefore not being a valid test case.
>> Additionally, further adding urgency to the removal, several active ironic
>> contributors who have tested ipminative drivers in real-world environments
>> have reported them as unstable.
>> The promise of a native python driver to talk to ipmi in ironic is great,
>> but without proper testing and stability, keeping it in-tree does more harm
>> to ironic users than good — in fact, there’s very little indication to a
>> deployer using ironic that the driver may not work stably.
>> Therefore, I’m giving the mailing list a two week warning — unless
>> volunteers come willing to run third party CI against the ipminative
>> drivers in the next two weeks, I will be submitting a patch to remove them
>> entirely from the tree. The driver could then be moved into
>> ironic-staging-drivers by any interested contributors.
> Thanks for writing it Jay. Indeed, we spent too much time waiting for
> someone to overtake this driver. I'm very much in favor of removing it, if
> somebody does not step up *right now*.
>> -
>> Jay Faulkner
>> Related-bug: https://bugs.launchpad.net/ironic/+bug/1671532
>> [1] https://docs.openstack.org/releasenotes/ironic/newton.html
>> [2] http://lists.openstack.org/pipermail/openstack-dev/2016-Dece
>> mber/108666.html
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