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Hi,

I am puzzled by the question described in the subject of the mail.

>From the DB in keystone E4,the table structure is shown as below.

service Field
-----------------
id
type
extra


endpoint Field
-----------------
id
region
service_id
extra


Obviously except for the field extra , service_id is the only association
between service and endpoint.
If there are others association between service&endpoint and user&role, the
ties shoud be stored in field extra.
But from the resource in official docs,I can not find it.
The extra in service table stores contents like "description", "name";
And the extra in endpoint table is like "adminurl", "internalurl",
"publicurl".

In fact  is it true that there is no association between service(endpoint)
and user(role)?
Can the extra field store contents different from above?

Will anyone help me or give me some hint?

Thanks.


Chen Han
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