[ironic][xena] problems updating redfish_password for existing node

Wade Albright the.wade.albright at gmail.com
Fri Aug 12 22:10:50 UTC 2022


Sorry for the spam. The openssl issue may have been a red herring. I am not
able to reproduce the issue directly with my own python code. I was trying
to fetch something that required authentication. After I added the correct
auth info it works fine. I am not able to cause the same error as is
happening in the Ironic logs.

Anyway I'll do some more testing and report back.

On Fri, Aug 12, 2022 at 2:14 PM Wade Albright <the.wade.albright at gmail.com>
wrote:

> I'm not sure why this problem only now started showing up, but it appears
> to be unrelated to Ironic. I was able to reproduce it directly outside of
> Ironic using a simple python program using urllib to get URLs from the
> BMC/redfish interface. Seems to be some combination of a buggy server SSL
> implementation and newer openssl 1.1.1. Apparently it doesn't happen using
> openssl 1.0.
>
> I've found some information about possible workarounds but haven't figured
> it out yet. If I do I'll update this thread just in case anyone else runs
> into it.
>
> On Fri, Aug 12, 2022 at 8:13 AM Wade Albright <the.wade.albright at gmail.com>
> wrote:
>
>> So I seem to have run into a new issue after upgrading to the newer
>> versions to fix the password change issue.
>>
>> Now I am randomly getting errors like the below. Once I hit this error
>> for a given node, no operations work on the node. I thought maybe it was an
>> issue with the node itself, but it doesn't seem like it. The BMC seems to
>> be working fine.
>>
>> After a conductor restart, things start working again. Has anyone seen
>> something like this?
>>
>> Log example:
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils
>> [req-b6dd74da-1cc7-4c63-b58e-b7ded37007e9 - - - - -] Node
>> ef5a2502-680b-4933-a0ee-6737e57ce1c5 failed deploy step {'step':
>> 'write_image', 'priority':
>> 80, 'argsinfo': None, 'interface': 'deploy'} with unexpected error:
>> ("Connection broken: InvalidChunkLength(got length b'', 0 bytes read)",
>> InvalidChunkLength(got length b'', 0 bytes read)): requests.exceptions.
>> ChunkedEncodingError: ("Connection broken: InvalidChunkLength(got length
>> b'', 0 bytes read)", InvalidChunkLength(got length b'', 0 bytes read))
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils Traceback
>> (most recent call last):
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils   File
>> "/usr/local/lib/python3.6/site-packages/urllib3/response.py", line 697, in
>> _update_chunk_length
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils
>> self.chunk_left = int(line, 16)
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils ValueError:
>> invalid literal for int() with base 16: b''
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils During
>> handling of the above exception, another exception occurred:
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils Traceback
>> (most recent call last):
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils   File
>> "/usr/local/lib/python3.6/site-packages/urllib3/response.py", line 438, in
>> _error_catcher
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils     yield
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils   File
>> "/usr/local/lib/python3.6/site-packages/urllib3/response.py", line 764, in
>> read_chunked
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils
>> self._update_chunk_length()
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils   File
>> "/usr/local/lib/python3.6/site-packages/urllib3/response.py", line 701, in
>> _update_chunk_length
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils     raise
>> InvalidChunkLength(self, line)
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils
>> urllib3.exceptions.InvalidChunkLength: InvalidChunkLength(got length b'', 0
>> bytes read)
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils During
>> handling of the above exception, another exception occurred:
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils Traceback
>> (most recent call last):
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils   File
>> "/usr/local/lib/python3.6/site-packages/requests/models.py", line 760, in
>> generate
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils     for
>> chunk in self.raw.stream(chunk_size, decode_content=True):
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils   File
>> "/usr/local/lib/python3.6/site-packages/urllib3/response.py", line 572, in
>> stream
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils     for line
>> in self.read_chunked(amt, decode_content=decode_content):
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils   File
>> "/usr/local/lib/python3.6/site-packages/urllib3/response.py", line 793, in
>> read_chunked
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils
>> self._original_response.close()
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils   File
>> "/usr/lib64/python3.6/contextlib.py", line 99, in __exit__
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils
>> self.gen.throw(type, value, traceback)
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils   File
>> "/usr/local/lib/python3.6/site-packages/urllib3/response.py", line 455, in
>> _error_catcher
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils     raise
>> ProtocolError("Connection broken: %r" % e, e)
>> 2022-08-12 07:45:33.227 1563371 ERROR ironic.conductor.utils
>> urllib3.exceptions.ProtocolError: ("Connection broken:
>> InvalidChunkLength(got length b'', 0 bytes read)", InvalidChunkLength(got
>> length b'', 0 bytes r
>> ead))
>>
>> On Wed, Jul 20, 2022 at 2:04 PM Wade Albright <
>> the.wade.albright at gmail.com> wrote:
>>
>>> I forgot to mention, that using session auth solved the problem after
>>> upgrading to the newer versions that include the two mentioned patches.
>>>
>>> On Wed, Jul 20, 2022 at 7:36 AM Wade Albright <
>>> the.wade.albright at gmail.com> wrote:
>>>
>>>> Switching to session auth solved the problem, and it seems like the
>>>> better way to go anyway for equipment that supports it. Thanks again for
>>>> all your help!
>>>>
>>>> Wade
>>>>
>>>> On Tue, Jul 19, 2022 at 5:37 PM Julia Kreger <
>>>> juliaashleykreger at gmail.com> wrote:
>>>>
>>>>> Just to provide a brief update for the mailing list. It looks like
>>>>> this is a case of use of Basic Auth with the BMC, where we were not
>>>>> catching the error properly... and thus not reporting the
>>>>> authentication failure to ironic so it would catch, and initiate a new
>>>>> client with the most up to date password. The default, typically used
>>>>> path is Session based authentication as BMCs generally handle internal
>>>>> session/user login tracking in a far better fashion. But not every BMC
>>>>> supports sessions.
>>>>>
>>>>> Fix in review[0] :)
>>>>>
>>>>> -Julia
>>>>> [0] https://review.opendev.org/c/openstack/sushy/+/850425
>>>>>
>>>>> On Mon, Jul 18, 2022 at 4:15 PM Julia Kreger
>>>>> <juliaashleykreger at gmail.com> wrote:
>>>>> >
>>>>> > Excellent, hopefully I'll be able to figure out why Sushy is not
>>>>> doing
>>>>> > the needful... Or if it is and Ironic is not picking up on it.
>>>>> >
>>>>> > Anyway, I've posted
>>>>> > https://review.opendev.org/c/openstack/ironic/+/850259 which might
>>>>> > handle this issue. Obviously a work in progress, but it represents
>>>>> > what I think is happening inside of ironic itself leading into sushy
>>>>> > when cache access occurs.
>>>>> >
>>>>> > On Mon, Jul 18, 2022 at 4:04 PM Wade Albright
>>>>> > <the.wade.albright at gmail.com> wrote:
>>>>> > >
>>>>> > > Sounds good, I will do that tomorrow. Thanks Julia.
>>>>> > >
>>>>> > > On Mon, Jul 18, 2022 at 3:27 PM Julia Kreger <
>>>>> juliaashleykreger at gmail.com> wrote:
>>>>> > >>
>>>>> > >> Debug would be best. I think I have an idea what is going on, and
>>>>> this
>>>>> > >> is a similar variation. If you want, you can email them directly
>>>>> to
>>>>> > >> me. Specifically only need entries reported by the sushy library
>>>>> and
>>>>> > >> ironic.drivers.modules.redfish.utils.
>>>>> > >>
>>>>> > >> On Mon, Jul 18, 2022 at 3:20 PM Wade Albright
>>>>> > >> <the.wade.albright at gmail.com> wrote:
>>>>> > >> >
>>>>> > >> > I'm happy to supply some logs, what verbosity level should i
>>>>> use? And should I just embed the logs in email to the list or upload
>>>>> somewhere?
>>>>> > >> >
>>>>> > >> > On Mon, Jul 18, 2022 at 3:14 PM Julia Kreger <
>>>>> juliaashleykreger at gmail.com> wrote:
>>>>> > >> >>
>>>>> > >> >> If you could supply some conductor logs, that would be
>>>>> helpful. It
>>>>> > >> >> should be re-authenticating, but obviously we have a larger
>>>>> bug there
>>>>> > >> >> we need to find the root issue behind.
>>>>> > >> >>
>>>>> > >> >> On Mon, Jul 18, 2022 at 3:06 PM Wade Albright
>>>>> > >> >> <the.wade.albright at gmail.com> wrote:
>>>>> > >> >> >
>>>>> > >> >> > I was able to use the patches to update the code, but
>>>>> unfortunately the problem is still there for me.
>>>>> > >> >> >
>>>>> > >> >> > I also tried an RPM upgrade to the versions Julia mentioned
>>>>> had the fixes, namely Sushy 3.12.1 - Released May 2022 and Ironic 18.2.1 -
>>>>> Released in January 2022. But it did not fix the problem.
>>>>> > >> >> >
>>>>> > >> >> > I am able to consistently reproduce the error.
>>>>> > >> >> >  - step 1: change BMC password directly on the node itself
>>>>> > >> >> >  - step 2: update BMC password (redfish_password) in ironic
>>>>> with 'openstack baremetal node set <nodename> --driver-info
>>>>> redfish_password='newpass'
>>>>> > >> >> >
>>>>> > >> >> > After step 1 there are errors in the logs entries like
>>>>> "Session authentication appears to have been lost at some point in time"
>>>>> and eventually it puts the node into maintenance mode and marks the power
>>>>> state as "none."
>>>>> > >> >> > After step 2 and taking the host back out of maintenance
>>>>> mode, it goes through a similar set of log entries puts the node into MM
>>>>> again.
>>>>> > >> >> >
>>>>> > >> >> > After the above steps, a conductor restart fixes the problem
>>>>> and operations work normally again. Given this it seems like there is still
>>>>> some kind of caching issue.
>>>>> > >> >> >
>>>>> > >> >> > On Sat, Jul 16, 2022 at 6:01 PM Wade Albright <
>>>>> the.wade.albright at gmail.com> wrote:
>>>>> > >> >> >>
>>>>> > >> >> >> Hi Julia,
>>>>> > >> >> >>
>>>>> > >> >> >> Thank you so much for the reply! Hopefully this is the
>>>>> issue. I'll try out the patches next week and report back. I'll also email
>>>>> you on Monday about the versions, that would be very helpful to know.
>>>>> > >> >> >>
>>>>> > >> >> >> Thanks again, really appreciate it.
>>>>> > >> >> >>
>>>>> > >> >> >> Wade
>>>>> > >> >> >>
>>>>> > >> >> >>
>>>>> > >> >> >>
>>>>> > >> >> >> On Sat, Jul 16, 2022 at 4:36 PM Julia Kreger <
>>>>> juliaashleykreger at gmail.com> wrote:
>>>>> > >> >> >>>
>>>>> > >> >> >>> Greetings!
>>>>> > >> >> >>>
>>>>> > >> >> >>> I believe you need two patches, one in ironic and one in
>>>>> sushy.
>>>>> > >> >> >>>
>>>>> > >> >> >>> Sushy:
>>>>> > >> >> >>> https://review.opendev.org/c/openstack/sushy/+/832860
>>>>> > >> >> >>>
>>>>> > >> >> >>> Ironic:
>>>>> > >> >> >>> https://review.opendev.org/c/openstack/ironic/+/820588
>>>>> > >> >> >>>
>>>>> > >> >> >>> I think it is variation, and the comment about working
>>>>> after you restart the conductor is the big signal to me. I’m on a phone on
>>>>> a bad data connection, if you email me on Monday I can see what versions
>>>>> the fixes would be in.
>>>>> > >> >> >>>
>>>>> > >> >> >>> For the record, it is a session cache issue, the bug was
>>>>> that the service didn’t quite know what to do when auth fails.
>>>>> > >> >> >>>
>>>>> > >> >> >>> -Julia
>>>>> > >> >> >>>
>>>>> > >> >> >>>
>>>>> > >> >> >>> On Fri, Jul 15, 2022 at 2:55 PM Wade Albright <
>>>>> the.wade.albright at gmail.com> wrote:
>>>>> > >> >> >>>>
>>>>> > >> >> >>>> Hi,
>>>>> > >> >> >>>>
>>>>> > >> >> >>>> I'm hitting a problem when trying to update the
>>>>> redfish_password for an existing node. I'm curious to know if anyone else
>>>>> has encountered this problem. I'm not sure if I'm just doing something
>>>>> wrong or if there is a bug. Or if the problem is unique to my setup.
>>>>> > >> >> >>>>
>>>>> > >> >> >>>> I have a node already added into ironic with all the
>>>>> driver details set, and things are working fine. I am able to run
>>>>> deployments.
>>>>> > >> >> >>>>
>>>>> > >> >> >>>> Now I need to change the redfish password on the host. So
>>>>> I update the password for redfish access on the host, then use an
>>>>> 'openstack baremetal node set <node> --driver-info
>>>>> redfish_password=<newpass>' command to set the new redfish_password.
>>>>> > >> >> >>>>
>>>>> > >> >> >>>> Once this has been done, deployment no longer works. I
>>>>> see redfish authentication errors in the logs and the operation fails. I
>>>>> waited a bit to see if there might just be a delay in updating the
>>>>> password, but after awhile it still didn't work.
>>>>> > >> >> >>>>
>>>>> > >> >> >>>> I restarted the conductor, and after that things work
>>>>> fine again. So it seems like the password is cached or something. Is there
>>>>> a way to force the password to update? I even tried removing the redfish
>>>>> credentials and re-adding them, but that didn't work either. Only a
>>>>> conductor restart seems to make the new password work.
>>>>> > >> >> >>>>
>>>>> > >> >> >>>> We are running Xena, using rpm installation on Oracle
>>>>> Linux 8.5.
>>>>> > >> >> >>>>
>>>>> > >> >> >>>> Thanks in advance for any help with this issue.
>>>>>
>>>>
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