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Hello,
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<div>As you are talking about how to distinguish the request to local Neutron and central Neutron, do you mean how to set the "USER_AGENT" in the request header, and how to extract the "USER_AGENT" and stored it in the context? Though it's mentioned in https://developer.openstack.org/sdks/python/openstacksdk/users/connection.html</div>
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<div>This field has not been extracted neither in oslo.context, nor neutron-lib context:</div>
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<div><a href="https://github.com/openstack/oslo.context/blob/master/oslo_context/context.py" target="_blank">https://github.com/openstack/oslo.context/blob/master/oslo_context/context.py</a></div>
<div><a href="https://github.com/openstack/neutron-lib/blob/master/neutron_lib/context.py" target="_blank" style="font-size: 12pt;">https://github.com/openstack/neutron-lib/blob/master/neutron_lib/context.py</a> </div>
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<div>May be we can add it in oslo.context?</div>
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<div><font size="3" face="Courier New">Best Regards</font></div>
<font size="3" face="Courier New">Chaoyi Huang (joehuang)</font></div>
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<div id="divRpF188906" style="direction: ltr;"><font face="Tahoma" size="2" color="#000000"><b>From:</b> XuZhuang [xu_lyman@163.com]<br>
<b>Sent:</b> 01 November 2017 19:49<br>
<b>To:</b> openstack-dev@lists.openstack.org<br>
<b>Subject:</b> [openstack-dev] [tricircle]Distinguish the direction of requests<br>
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<div>Hello,</div>
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<p style="margin-bottom:0cm; line-height:100%"><font face="Liberation Serif, serif"><font style="font-size:12pt"><span lang="en-US">I have some questions in how to distinguish the direction of requests between local neutron and central neutron.</span></font></font></p>
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<p style="margin-bottom:0cm; line-height:100%"><font face="Liberation Serif, serif"><font style="font-size:12pt"><span lang="en-US">There is the preliminary plan</span></font></font></p>
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<p style="margin-bottom:0cm; line-height:100%"><font face="Liberation Serif, serif"><font style="font-size:12pt"><span lang="en-US">1. For how to distinguish the requests in central neutron</span></font></font></p>
<p style="margin-bottom:0cm; line-height:100%"><font face="Liberation Serif, serif"><font style="font-size:12pt"><span lang="en-US">we can add a filter in neutron/…./etc/api-paste.ini. Using this filter we can get some values about the source.</span></font></font></p>
<p style="margin-bottom:0cm; line-height:100%"><font face="Liberation Serif, serif"><font style="font-size:12pt"><span lang="en-US">But the question is that the process of loading filter is in Neutron. Without changing Neutron how could we add a filter? Could
we change Neutron?</span></font></font></p>
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<p style="margin-bottom:0cm; line-height:100%"><font face="Liberation Serif, serif"><font style="font-size:12pt"><span lang="en-US">2. For how to add a signal in the requests</span></font></font></p>
<p style="margin-bottom:0cm; line-height:100%"><font face="Liberation Serif, serif"><font style="font-size:12pt"><span lang="en-US">The module of common.client in Tricircle is responsible for sending requests. So we can add a signal in the header of requests.
And central plugin will get this signal using the filter.</span></font></font></p>
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<div style="font-family:Tahoma; font-size:13px"><font size="3" face="Courier New">Best Regards</font></div>
<p style="margin-bottom:0cm; line-height:100%"><font size="3" face="Courier New">Zhuangzhuang Xu (Lyman Xu)</font></p>
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