hi,all
    My env is contrail3.0 + openstack M
    I encounter an issue which is similar to 
https://bugs.launchpad.net/opencontrail/+bug/1590790
    when I remove all the security groups of a VM.
    If this is not the first time, in another hand, when I remove security 
groups if the __no_rule__ security is already exist,the operation would be 
failed and raise RefsExistError

    this is because,the request without admin role there is no permission to 
read __no_rule__ security, and then attempt to create it which already exist.
    In fact, the tenant has the admin role.

    the contrail2.20 there is no the issue,so I check the code I found this is 
because we disable auth=keystone in contrail-api.conf and 'HTTP_X_ROLE' 
Deprecated in Mitaka of openstack.
        disable auth=keystone,in contrail2.20 would add 'admin' role into the 
header for all requests to see all resources (those code is delete in 
contrail3.0)
        enable auth=keystone,while auth_middleware.get_admin_token() raise 
AttributeError: 'AuthProtocol' object has no attribute 'get_admin_token'
    So,
    1. how can I fix the issue while diable auth in contrail-api.conf ?
    2. if enable auth=keystone, how to integrate with Mitaka ?

any help would be appreciated
Keyang Li



l...@certusnet.com.cn
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