[Pulp-dev] Content paths in Pulp 3

David Davis daviddavis at redhat.com
Tue Apr 10 17:36:51 UTC 2018


Ugh, I’m wondering if this means we should also apply this content logic to
publishers and remotes then?


David

On Tue, Apr 10, 2018 at 12:38 PM, Brian Bouterse <bbouters at redhat.com>
wrote:

> I think we should assume there could be multiple Remote's from a single
> plugin. For example the Galaxy remote pulp_ansible syncs from is launching
> a backwards incompatible API (their v3), so we will probably need to
> maintain a v2Remote and a v3Remote. There could be a similar backwards
> compatibility difference in published metadata motivating multiple
> Publishers from a single plugin also.
>
> On Tue, Apr 10, 2018 at 8:10 AM, David Davis <daviddavis at redhat.com>
> wrote:
>
>> I’m not sure I understand the reasoning behind implementing a
>> “v3/content/ansible/“ route. For example, we currently have
>> “v3/content/file/“ but no “v3/content/“ route.
>>
>> I think the point you raise around remotes and publishers is valid. Will
>> plugins ever implement multiple remotes or publishers? I was thinking that
>> there would always be one remote and one publisher class for each plugin
>> but I suppose this could be wrong.
>>
>>
>> David
>>
>> On Mon, Apr 9, 2018 at 1:32 PM, Austin Macdonald <amacdona at redhat.com>
>> wrote:
>>
>>> I've updated the issue https://pulp.plan.io/issues/3472 to reflect the
>>> current consensus.
>>>
>>> However, I have some other points I'd like to discuss before we move on.
>>>
>>> *Implied endpoint:*
>>> v3/content/ansible/roles/ implies that there is a v3/content/ansible/.
>>> Even though this does not exist, it could, but it is a little awkward.
>>>
>>> Implent v3/content/ansible/:
>>>
>>>    1. Create a model viewset and serializer for the ansible level:
>>>       1. class AnsibleContent(core.plugin.models.Content)
>>>       2. class AnsibleContentSerializer(core.
>>>       plugin.serializers.ContentSerializer)
>>>       3. class AnsibleContentViewSet(core.plu
>>>       gin.viewsets.ContentViewSet)
>>>          1. endpoint = "ansible"
>>>       2. Make the Role model, VS, and Serializer inherit from the
>>>    AnsibleContent Model, VS, and Serializer
>>>
>>> The end result is that v3/content/ansible/ will return all Ansible
>>> content units, including Roles. v3/content/ansible/roles/ will only return
>>> Roles.
>>>
>>> *Publishers and Remotes*
>>> The above workflow makes sense and is useful if there are multiple
>>> units, but for the File plugin, this pattern adds an endpoint and 3 classes
>>> to the Content. If we want to be consistent and apply this to Remotes and
>>> Publishers, this is 3 useless endpoints and 9 extra classes. (These classes
>>> are simple, even if they are extraneous, conceptually)
>>>
>>> *IMO*
>>> I think we should document all of this in the plugin docs. For single
>>> type (and single remote, and single publisher) plugins, it will make more
>>> sense not to add an extra namespace. If we document how to add the extra
>>> namespace and when/why plugins should, that will be sufficient. Promoting
>>> consistency over simplicity in this case seems too far.
>>>
>>> *Or...*
>>> We could alter the Master/Detail code. I only have vague ideas about how
>>> to do this, but Master/Detail would essentially become
>>> Master/Plugin/Detail. This seems "right", but there isn't as much gain here
>>> as you might think. If we did it this, plugins would be required to
>>> namespace, and would be still be required to make all those extra classes.
>>> The only practical difference is that the AnsibleRoleViewSet.endpoint =
>>> "roles" instead of "ansible/roles". Either way, the endpoint would be
>>> v3/content/ansible/roles/
>>>
>>> On Fri, Apr 6, 2018 at 10:25 AM, Brian Bouterse <bbouters at redhat.com>
>>> wrote:
>>>
>>>> +1 to option 1. It's consistent.
>>>>
>>>> On Fri, Apr 6, 2018 at 10:21 AM, Dennis Kliban <dkliban at redhat.com>
>>>> wrote:
>>>>
>>>>> Option 1 is the most consistent. +1 to option 1
>>>>>
>>>>>
>>>>> On Fri, Apr 6, 2018 at 10:19 AM, Austin Macdonald <amacdona at redhat.com
>>>>> > wrote:
>>>>>
>>>>>> IMO:
>>>>>> We should suggest v3/content/<plugin>/<type>/. [Proposal 1] We should
>>>>>> mention the other options with the pros, cons in the plugin writer docs.
>>>>>>
>>>>>> On Thu, Apr 5, 2018 at 10:54 AM, David Davis <daviddavis at redhat.com>
>>>>>> wrote:
>>>>>>
>>>>>>>
>>>>>>> [0] https://pulp.plan.io/issues/3407
>>>>>>>
>>>>>>
>>>>>> The correct link is: https://pulp.plan.io/issues/3472
>>>>>>
>>>>>> _______________________________________________
>>>>>> Pulp-dev mailing list
>>>>>> Pulp-dev at redhat.com
>>>>>> https://www.redhat.com/mailman/listinfo/pulp-dev
>>>>>>
>>>>>>
>>>>>
>>>>> _______________________________________________
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>>>>>
>>>>>
>>>>
>>>
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>>
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>
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