[ClusterLabs Developers] [fence-agents] How to "login" other than ssh or telnet?

[Oyvind Albrigtsen]

On 19/11/18 21:30 +0000, Jose.Delarosa at dell.com wrote:
>Do we need to use a CLI tool to implement a fence agent? I rather stay away from redfishtool to avoid having it as a dependency (and Python v3) and would rather just use the requests library directly.
No need to use CLI tool. We actually prefer using libraries where
available.
>
>I created a fence agent for redfish, the agent can take as argument the Systems URI or can programmatically find it as it will be different across OEMs:
>
>https://github.com/jose-delarosa/fence-agents/blob/add_redfish_fence_agent/agents/redfish/fence_redfish.py
>
>Looking for initial feedback please.
You're welcome to create a PR against our ClusterLabs repo, where we
can discuss regarding improvements. You should rename it to .py.py, so
that make replaces @PYTHON@ and other variables detected during
configure.

It's GPLv2 by default, so add a license header if you want it licensed
under another license.
>
>I usually don’t use tabs to indent lines, is this a requirement?
We just stay consistant with what indentation the code comes with, so
no need to worry about tab vs space for indentation.
>
>Jose Delarosa
>Linux Engineering
>Dell EMC|Infrastructure Solutions Group
>
>
>
>-----Original Message-----
>From: Developers [mailto:developers-bounces at clusterlabs.org] On Behalf Of Andrei Borzenkov
>Sent: Thursday, November 15, 2018 10:09 PM
>To: developers at clusterlabs.org
>Subject: Re: [ClusterLabs Developers] [fence-agents] How to "login" other than ssh or telnet?
>
>
>[EXTERNAL EMAIL]
>
>16.11.2018 0:31, Jose.Delarosa at dell.com<mailto:Jose.Delarosa at dell.com> пишет:
>> All,
>>
>> I am looking at writing a fence agent for Redfish, which uses REST APIs to run "commands" like power off/on/status. There is no ssh login per se, as the APIs are accessed through HTTP methods (GET/POST/PATCH, etc.), so none of these can be used:
>>
>> https://github.com/ClusterLabs/fence-agents/blob/master/lib/fencing.py
>> .py#L968-L976
>> <https://github.com/ClusterLabs/fence-agents/blob/master/agents/autode
>> tect/fencing.py#L888-L896> I'm new to this project, so looking for
>> insightful feedback from the project maintainers or more experience developers here as to the best way to implement a fence "login" for Redfish.
>
>python redfishtool.py -r <rhost> -u <username> -p <password> Systems reset ForceRestart
>
>At which point you can take any of existing fencing/stonith agent as template and fill in actual command.
>
>https://github.com/DMTF/Redfishtool
>
>>
>> Also, is anyone here also looking at developing a Redfish fence agent?
>> I see https://github.com/ClusterLabs/fence-agents/issues/230, but not much activity, happy to collaborate.> Thank you all.
>>
>> Jose Delarosa
>>
>>
>>
>>
>>
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>>
>
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