The client passes cacert incorrectly, CA cert need to be passed in verify parameter to requests library. Also at present, key file is not being used, which if it is supplied need to be passed as a tuple in cert parameter Python requests library relevant doc link http://docs.python-requests.org/en/latest/user/advanced/#ssl-cert-verification Change-Id: Ie71e760bce6a78ed1444373adfa0a133e82ec434 Closes-Bug: 1408372