Make sandbox container optional
Infra container (sandbox) is not a must for native Docker driver (it is a must for Nova Docker driver). Introducing infra container to native Docker driver incurs an overhead to manage the additional resources. This BP suggested to remove infra container from native Docker driver.
Whiteboard
Gerrit topic: https:/
Addressed by: https:/
Make sandbox container optional
Addressed by: https:/
Retrieve addresses when connecting to network
Addressed by: https:/
Optimize disconnection of container from network
Addressed by: https:/
Optimize add_security_
Addressed by: https:/
Optimize connect_
Addressed by: https:/
Refactor create/delete sandbox code
Addressed by: https:/
Minor refactor of get_security_
Addressed by: https:/
Refactor networking code of docker driver