[Pulp-dev] Plugin relationship to tasks

[Dennis Kliban]

Here is where I stand:

-1 on converting the task status API to task creation API (the original
proposal)
+1 on adding a hook for plugins to provide repository version validation of
content
+1 on exploring other ideas to make the v3 API more RESTful (removing the
action end points such as 'sync' and 'publish')

On Tue, Apr 3, 2018 at 12:01 PM, David Davis <daviddavis at redhat.com> wrote:

> I’ve had a chance to think about this some more this week and reread all
> the emails. I think that the solution of just adding a hook is best. Each
> solution seems to be imperfect and I think we still want users to interact
> with objects (remotes, repositories, etc). I’d say I’m +1 on adding a hook
> and -0 on the other proposals.
>
>
> David
>
> On Mon, Apr 2, 2018 at 5:02 PM, Brian Bouterse <bbouters at redhat.com>
> wrote:
>
>> @asmacdo and I talked some and I wanted to share a few of my thoughts on
>> the plugin tasks problem statements.
>>
>> I agree with a problem statement for pulp_docker for example that it
>> would be good for a plugin writer to add custom validation when creating a
>> new repo/version. I thought this idea was stated already, but I'll retell
>> what I had thought we would do to add plugin writer validation. We would
>> make an optional plugin writer hook that validates the entire repository
>> when the RepositoryVersion is being made complete. Also this would also
>> allow a plugin to "disable" the repoversion endpoint by always raising an
>> exception here.
>>
>> The documentation convention is also a good outcome. It would recommend
>> that plugin writers put their views in a url namespaced by their plugin
>> name. I think we should do that.
>>
>> The other main problem I've read about with what we currently have is
>> that the actions urls (sync, publish, export, custom views) would be all in
>> different areas of the API urls. This is identified as a problem, but I
>> think this is ok. It allows us to explain each of those parts of pulp
>> separately, which makes the understanding of the API still pretty easy.
>>
>> I also believe another tertiary problem identified is that the 'sync',
>> 'publish', and 'export' words are not restful and it would be good to
>> resolve that somehow. A restful API would be an easier API to use because
>> REST clients already know how to interact with a resource. Action endpoints
>> kind of break this.
>>
>>
>>
>>
>>
>>
>>
>> On Mon, Apr 2, 2018 at 2:54 PM, Austin Macdonald <amacdona at redhat.com>
>> wrote:
>>
>>> Thanks for the classifications.
>>>
>>> On Mon, Apr 2, 2018 at 2:37 PM, Dennis Kliban <dkliban at redhat.com>
>>> wrote:
>>>
>>> I think of these actions as 2 new types of resource in Pulp. Unlike
>>>> Remotes(Importers currently) and Content, these resources are singletons
>>>> that each plugin provides. Since users don't need to create new instances
>>>> of these resources it makes sense that they are represented by a View
>>>> instead of a ViewSet. Though we don't even need to explain that to plugin
>>>> writers. We just need to tell them that all operations that their plugin
>>>> provides for users need to be sublassed from ActionView.
>>>>
>>>> From the users point of view a GET on /api/v3/versionsactions/ to find
>>>> a versionaction href is the same as performing a GET on /api/v3/remotes/ to
>>>> find the href for a specific remote to sync from.
>>>>
>>>> Auto documentation would work perfectly.
>>>>
>>>>
>>> Its not that it would be "broken" or "wrong". I just think that users
>>> expect the documentation to include behavior and parameters-- ideally,
>>> there should be enough information to create a request. In this case
>>> however, the documentation just explains how to retrieve the necessary
>>> information. It works, but I don't think it is ideal that the user needs to
>>> make other GET requests to learn how to use an API endpoint.
>>>
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>>>
>>>
>>
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>>
>
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