network_mode now necessary in host_config

docker/client.py

@@ -733,7 +733,7 @@ def search(self, term):
 
     @check_resource
     def start(self, container, binds=None, port_bindings=None, lxc_conf=None,
-              publish_all_ports=False, links=None, privileged=False,
+              publish_all_ports=None, links=None, privileged=None,
               dns=None, dns_search=None, volumes_from=None, network_mode=None,
               restart_policy=None, cap_add=None, cap_drop=None, devices=None,
               extra_hosts=None, read_only=None, pid_mode=None, ipc_mode=None,
@@ -775,7 +775,7 @@ def start(self, container, binds=None, port_bindings=None, lxc_conf=None,
                     'ulimits is only supported for API version >= 1.18'
                 )
 
-        start_config = utils.create_host_config(
+        start_config_kwargs = dict(
             binds=binds, port_bindings=port_bindings, lxc_conf=lxc_conf,
             publish_all_ports=publish_all_ports, links=links, dns=dns,
             privileged=privileged, dns_search=dns_search, cap_add=cap_add,
@@ -784,16 +784,18 @@ def start(self, container, binds=None, port_bindings=None, lxc_conf=None,
             extra_hosts=extra_hosts, read_only=read_only, pid_mode=pid_mode,
             ipc_mode=ipc_mode, security_opt=security_opt, ulimits=ulimits
         )
+        start_config = None
+
+        if any(v is not None for v in start_config_kwargs.values()):
+            if utils.compare_version('1.15', self._version) > 0:
+                warnings.warn(
+                    'Passing host config parameters in start() is deprecated. '
+                    'Please use host_config in create_container instead!',
+                    DeprecationWarning
+                )
+            start_config = utils.create_host_config(**start_config_kwargs)
 
         url = self._url("/containers/{0}/start".format(container))
-        if not start_config:
-            start_config = None
-        elif utils.compare_version('1.15', self._version) > 0:
-            warnings.warn(
-                'Passing host config parameters in start() is deprecated. '
-                'Please use host_config in create_container instead!',
-                DeprecationWarning
-            )
         res = self._post_json(url, data=start_config)
         self._raise_for_status(res)
 

docker/utils/utils.py

@@ -428,6 +428,8 @@ def create_host_config(
 
     if network_mode:
         host_config['NetworkMode'] = network_mode
+    elif network_mode is None:
+        host_config['NetworkMode'] = 'default'
 
     if restart_policy:
         host_config['RestartPolicy'] = restart_policy

docker/version.py

@@ -1,2 +1,2 @@
-version = "1.3.1"
+version = "1.4.0-dev"
 version_info = tuple([int(d) for d in version.split("-")[0].split(".")])

tests/integration_test.py

@@ -181,7 +181,9 @@ def runTest(self):
             container = self.client.create_container(
                 'busybox',
                 ['ls', mount_dest], volumes={mount_dest: {}},
-                host_config=create_host_config(binds=binds)
+                host_config=create_host_config(
+                    binds=binds, network_mode='none'
+                )
             )
             container_id = container['Id']
             self.client.start(container_id)
@@ -221,7 +223,9 @@ def runTest(self):
             container = self.client.create_container(
                 'busybox',
                 ['ls', mount_dest], volumes={mount_dest: {}},
-                host_config=create_host_config(binds=binds)
+                host_config=create_host_config(
+                    binds=binds, network_mode='none'
+                )
             )
             container_id = container['Id']
             self.client.start(container_id)
@@ -273,7 +277,9 @@ class TestCreateContainerReadOnlyFs(BaseTestCase):
     def runTest(self):
         ctnr = self.client.create_container(
             'busybox', ['mkdir', '/shrine'],
-            host_config=create_host_config(read_only=True)
+            host_config=create_host_config(
+                read_only=True, network_mode='none'
+            )
         )
         self.assertIn('Id', ctnr)
         self.tmp_containers.append(ctnr['Id'])
@@ -347,7 +353,9 @@ def runTest(self):
 class TestCreateContainerPrivileged(BaseTestCase):
     def runTest(self):
         res = self.client.create_container(
-            'busybox', 'true', host_config=create_host_config(privileged=True)
+            'busybox', 'true', host_config=create_host_config(
+                privileged=True, network_mode='none'
+            )
         )
         self.assertIn('Id', res)
         self.tmp_containers.append(res['Id'])
@@ -591,7 +599,9 @@ def runTest(self):
 
         container = self.client.create_container(
             'busybox', ['sleep', '60'], ports=list(port_bindings.keys()),
-            host_config=create_host_config(port_bindings=port_bindings)
+            host_config=create_host_config(
+                port_bindings=port_bindings, network_mode='bridge'
+            )
         )
         id = container['Id']
 
@@ -717,7 +727,9 @@ def runTest(self):
             )
         res2 = self.client.create_container(
             'busybox', 'cat', detach=True, stdin_open=True,
-            host_config=create_host_config(volumes_from=vol_names)
+            host_config=create_host_config(
+                volumes_from=vol_names, network_mode='none'
+            )
         )
         container3_id = res2['Id']
         self.tmp_containers.append(container3_id)
@@ -760,7 +772,8 @@ def runTest(self):
 
         res2 = self.client.create_container(
             'busybox', 'env', host_config=create_host_config(
-                links={link_path1: link_alias1, link_path2: link_alias2}
+                links={link_path1: link_alias1, link_path2: link_alias2},
+                network_mode='none'
             )
         )
         container3_id = res2['Id']
@@ -781,7 +794,8 @@ class TestRestartingContainer(BaseTestCase):
     def runTest(self):
         container = self.client.create_container(
             'busybox', ['sleep', '2'], host_config=create_host_config(
-                restart_policy={"Name": "always", "MaximumRetryCount": 0}
+                restart_policy={"Name": "always", "MaximumRetryCount": 0},
+                network_mode='none'
             )
         )
         id = container['Id']
@@ -910,7 +924,7 @@ class TestCreateContainerWithHostPidMode(BaseTestCase):
     def runTest(self):
         ctnr = self.client.create_container(
             'busybox', 'true', host_config=create_host_config(
-                pid_mode='host'
+                pid_mode='host', network_mode='none'
             )
         )
         self.assertIn('Id', ctnr)
@@ -945,7 +959,7 @@ def runTest(self):
 
         container2 = self.client.create_container(
             'busybox', 'cat', host_config=create_host_config(
-                links={link_path: link_alias}
+                links={link_path: link_alias}, network_mode='none'
             )
         )
         container2_id = container2['Id']

tests/utils_test.py

@@ -107,7 +107,7 @@ def test_convert_filters(self):
             self.assertEqual(convert_filters(filters), expected)
 
     def test_create_empty_host_config(self):
-        empty_config = create_host_config()
+        empty_config = create_host_config(network_mode='')
         self.assertEqual(empty_config, {})
 
     def test_create_host_config_dict_ulimit(self):