Refactor the clients used in protect service
In protection service, both protect and restore operation use user token
passed by context to create clients of other openstack services and access them
by that client. It may fail to access other services because of the expiration
of user token.
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Spec: Refactor the clients used in protect service
Gerrit topic: https:/
Addressed by: https:/
Refactor clients used in protect service
Addressed by: https:/
Refactor clients used in protect service
Addressed by: https:/
Update the way of getting endpoint of other service
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Fix token expire wich may happen in using clients
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Use common config in clients
Addressed by: https:/
Fix token expire wich may happen in using clients
