[1.25.8] SSL failure during deployer bundle deployment

MAAS 1.9.4
Juju 1.25.8

cdoqa@donphan:~$ juju deployer --debug --deploy-delay 10 --timeout 3600 --config cdoqa-system-tests/resources/LDS_dense.yaml
2016-12-05 10:44:17 [DEBUG] deployer.cli: Using runtime GoEnvironment on maas
2016-12-05 10:44:17 [INFO] deployer.cli: Using deployment cdoqa-system-tests/resources/LDS_dense.yaml
2016-12-05 10:44:17 [INFO] deployer.cli: Starting deployment of cdoqa-system-tests/resources/LDS_dense.yaml
2016-12-05 10:44:17 [DEBUG] deployer.import: Getting charms...
2016-12-05 10:44:17 [DEBUG] deployer.charm: Cache dir /home/cdoqa/.juju/.deployer-store-cache/cs_trusty_haproxy-16
2016-12-05 10:44:17 [DEBUG] deployer.charm: Cache dir /home/cdoqa/.juju/.deployer-store-cache/cs_trusty_landscape-server
2016-12-05 10:44:17 [DEBUG] deployer.charm: Cache dir /home/cdoqa/.juju/.deployer-store-cache/cs_trusty_postgresql-41
2016-12-05 10:44:17 [DEBUG] deployer.charm: Cache dir /home/cdoqa/.juju/.deployer-store-cache/cs_trusty_rabbitmq-server-45
2016-12-05 10:44:17 [DEBUG] deployer.deploy: Resolving configuration
2016-12-05 10:44:17 [DEBUG] deployer.env: Connecting to environment...
Traceback (most recent call last):
  File "/usr/bin/juju-deployer", line 9, in <module>
    load_entry_point('juju-deployer==0.6.4', 'console_scripts', 'juju-deployer')()
  File "/usr/lib/python2.7/dist-packages/deployer/cli.py", line 135, in main
    run()
  File "/usr/lib/python2.7/dist-packages/deployer/cli.py", line 234, in run
    importer.Importer(env, deployment, options).run()
  File "/usr/lib/python2.7/dist-packages/deployer/action/importer.py", line 298, in run
    self.env.connect()
  File "/usr/lib/python2.7/dist-packages/deployer/env/go.py", line 65, in connect
    self.client = EnvironmentClient.connect(self.name)
  File "/usr/lib/python2.7/dist-packages/jujuclient.py", line 534, in connect
    return Connector().run(cls, env_name)
  File "/usr/lib/python2.7/dist-packages/jujuclient.py", line 142, in run
    cert_path, data.get('environ-uuid'))
  File "/usr/lib/python2.7/dist-packages/jujuclient.py", line 150, in connect_env
    env = cls(endpoint, name=name, ca_cert=cert_path, env_uuid=env_uuid)
  File "/usr/lib/python2.7/dist-packages/jujuclient.py", line 522, in __init__
    self.conn = Connector.connect_socket(endpoint, self._ca_cert)
  File "/usr/lib/python2.7/dist-packages/jujuclient.py", line 162, in connect_socket
    endpoint, origin=endpoint, sslopt=sslopt)
  File "/usr/lib/python2.7/dist-packages/websocket/_core.py", line 219, in create_connection
    websock.connect(url, **options)
  File "/usr/lib/python2.7/dist-packages/websocket/_core.py", line 463, in connect
    self.sock = ssl.wrap_socket(self.sock, **sslopt)
  File "/usr/lib/python2.7/ssl.py", line 487, in wrap_socket
    ciphers=ciphers)
  File "/usr/lib/python2.7/ssl.py", line 243, in __init__
    self.do_handshake()
  File "/usr/lib/python2.7/ssl.py", line 405, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLError: [Errno 1] _ssl.c:510: error:1409442E:SSL routines:SSL3_READ_BYTES:tlsv1 alert protocol version