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Hello Gleb:

The OC plugin is using the Neutron API to execute operations on the server.
The "get_trunk" method calls "_get_resource" [1]. I've tested the Neutron
API and this is what you get from the API: [2]. All standard attributes are
returned.

Maybe this could be related to the "fields" parameter you are passing in
the method [3]. Check if you are filtering the API call and only retrieving
a certain subset of fields.

Regards.

[1]
https://gerrit.tungsten.io/r/gitweb?p=tungstenfabric/tf-neutron-plugin.git;a=blob;f=neutron_plugin_contrail/plugins/opencontrail/contrail_plugin.py;h=80104f1e673eb4583f7a15707c3590c510fd7667;hb=refs/heads/master#l326
[2]https://paste.opendev.org/show/bh1QD8VqLz4OKMKYBXUa/
[3]
https://gerrit.tungsten.io/r/gitweb?p=tungstenfabric/tf-neutron-plugin.git;a=blob;f=neutron_plugin_contrail/plugins/opencontrail/services/trunk/plugin.py;h=35fc3310911143fd3b4cf8997c23d0358d652dba;hb=refs/heads/master#l50

On Fri, May 6, 2022 at 4:35 PM Gleb Zimin <gzimin at mirantis.com> wrote:

> Environment: Openstack Victoria, OpenContrail (TungstenFabric) R2011.
> Problem: Trunk ports doesn't have standard attributes such as description,
> timestamp.
> I have an environment where core plugin is OpenContrail. OpenContrail has
> tf-neutron-plugin for proper work with neutron. There is TrunkPlugin, that
> proxies all trunk-related request to the OpenContrail backend. Here is the
> link for this plugin.
> https://gerrit.tungsten.io/r/gitweb?p=tungstenfabric/tf-neutron-plugin.git;a=blob;f=neutron_plugin_contrail/plugins/opencontrail/services/trunk/plugin.py;h=35fc3310911143fd3b4cf8997c23d0358d652dba;hb=refs/heads/master
> According to the openstack documentation: Resources that inherit from the
> HasStandardAttributes DB class can automatically have the extensions
> written for standard attributes (e.g. timestamps, revision number, etc)
> extend their resources by defining the ‘api_collections’ on their model.
> These are used by extensions for standard attr resources to generate the
> extended resources map.
> As I understood, it works only for plugins, which using Openstack
> database. For example, openstack native trunk plugin has models.py file
> where we can see this inheritance.
> https://github.com/openstack/neutron/blob/master/neutron/services/trunk/models.py#L26
> In case of OpenContrail+OpenStack Trunk plugin only redirect requests.
> What can I do to make Contrail Trunk plugin works in the same way?
> I'll appreciate any help. Thanks in advance.
>
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