Upgrade from docker-py to docker

The pypi package 'docker-py' [1] has been renamed to 'docker' [2].
We need to move to the new 'docker' package in order to leverage
the up-to-date features.

[1] https://pypi.python.org/pypi/docker-py
[2] https://pypi.python.org/pypi/docker

Change-Id: I0a6fdb905016ff064d90b3170c3bcf90311aaaad

kuryr_libnetwork/tests/fullstack/kuryr_base.py

@@ -81,7 +81,7 @@ class KuryrBaseTest(base.BaseTestCase):
     """
     def setUp(self):
         super(KuryrBaseTest, self).setUp()
-        self.docker_client = docker.Client(
+        self.docker_client = docker.APIClient(
             base_url='tcp://0.0.0.0:2375')
         try:
             self.neutron_client = get_neutron_client_from_env()

rally-jobs/plugins/context/docker_networks.py

@@ -52,7 +52,7 @@ class DockerNetworkContext(context.Context):
     def setup(self):
         """Create kuryr or non-kuryr docker network, and prepare image cache"""
         try:
-            docker_client = docker.Client(base_url="tcp://0.0.0.0:2375")
+            docker_client = docker.APIClient(base_url="tcp://0.0.0.0:2375")
 
             if self.config["is_kuryr"]:
                 ipam = {

rally-jobs/plugins/scenarios/utils.py

@@ -27,7 +27,7 @@ class KuryrScenario(scenario.OpenStackScenario):
 
     def __init__(self, context=None, admin_clients=None, clients=None):
         super(KuryrScenario, self).__init__(context, admin_clients, clients)
-        self.docker_client = docker.Client(base_url='tcp://0.0.0.0:2375')
+        self.docker_client = docker.APIClient(base_url='tcp://0.0.0.0:2375')
 
     @atomic.action_timer("kuryr.list_networks")
     def _list_networks(self, network_list_args):

test-requirements.txt

@@ -5,7 +5,7 @@
 
 coverage>=4.0 # Apache-2.0
 ddt>=1.0.1 # MIT
-docker-py>=1.8.1 # Apache-2.0
+docker>=2.0.0 # Apache-2.0
 hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 os-testr>=0.8.0 # Apache-2.0
 oslo.serialization>=1.10.0 # Apache-2.0