Merge pull request #1604 from docker/1433-run-networks

Replace erroneous networks argument in containers.run

docker/models/containers.py

@@ -546,10 +546,12 @@ class ContainerCollection(Collection):
                 behavior. Accepts number between 0 and 100.
             memswap_limit (str or int): Maximum amount of memory + swap a
                 container is allowed to consume.
-            networks (:py:class:`list`): A list of network names to connect
-                this container to.
             name (str): The name for this container.
             nano_cpus (int):  CPU quota in units of 10-9 CPUs.
+            network (str): Name of the network this container will be connected
+                to at creation time. You can connect to additional networks
+                using :py:meth:`Network.connect`. Incompatible with
+                ``network_mode``.
             network_disabled (bool): Disable networking.
             network_mode (str): One of:
 
@@ -559,6 +561,7 @@ class ContainerCollection(Collection):
                 - ``container:<name|id>`` Reuse another container's network
                   stack.
                 - ``host`` Use the host network stack.
+                Incompatible with ``network``.
             oom_kill_disable (bool): Whether to disable OOM killer.
             oom_score_adj (int): An integer value containing the score given
                 to the container in order to tune OOM killer preferences.
@@ -680,6 +683,12 @@ class ContainerCollection(Collection):
             raise RuntimeError("The options 'detach' and 'remove' cannot be "
                                "used together.")
 
+        if kwargs.get('network') and kwargs.get('network_mode'):
+            raise RuntimeError(
+                'The options "network" and "network_mode" can not be used '
+                'together.'
+            )
+
         try:
             container = self.create(image=image, command=command,
                                     detach=detach, **kwargs)
@@ -902,10 +911,10 @@ def _create_container_args(kwargs):
     if volumes:
         host_config_kwargs['binds'] = volumes
 
-    networks = kwargs.pop('networks', [])
-    if networks:
-        create_kwargs['networking_config'] = {network: None
-                                              for network in networks}
+    network = kwargs.pop('network', None)
+    if network:
+        create_kwargs['networking_config'] = {network: None}
+        host_config_kwargs['network_mode'] = network
 
     # All kwargs should have been consumed by this point, so raise
     # error if any are left

docker/types/services.py

@@ -127,7 +127,7 @@ class ContainerSpec(dict):
 class Mount(dict):
     """
     Describes a mounted folder's configuration inside a container. A list of
-    :py:class:`Mount`s would be used as part of a
+    :py:class:`Mount` would be used as part of a
     :py:class:`~docker.types.ContainerSpec`.
 
     Args:

tests/integration/models_containers_test.py

 import docker
 import tempfile
 from .base import BaseIntegrationTest, TEST_API_VERSION
+from ..helpers import random_name
 
 
 class ContainerCollectionTest(BaseIntegrationTest):
@@ -69,6 +70,24 @@ class ContainerCollectionTest(BaseIntegrationTest):
         )
         self.assertEqual(out, b'hello\n')
 
+    def test_run_with_network(self):
+        net_name = random_name()
+        client = docker.from_env(version=TEST_API_VERSION)
+        client.networks.create(net_name)
+        self.tmp_networks.append(net_name)
+
+        container = client.containers.run(
+            'alpine', 'echo hello world', network=net_name,
+            detach=True
+        )
+        self.tmp_containers.append(container.id)
+
+        attrs = container.attrs
+
+        assert 'NetworkSettings' in attrs
+        assert 'Networks' in attrs['NetworkSettings']
+        assert list(attrs['NetworkSettings']['Networks'].keys()) == [net_name]
+
     def test_get(self):
         client = docker.from_env(version=TEST_API_VERSION)
         container = client.containers.run("alpine", "sleep 300", detach=True)

tests/unit/models_containers_test.py

@@ -71,8 +71,7 @@ class ContainerCollectionTest(unittest.TestCase):
             memswap_limit=456,
             name='somename',
             network_disabled=False,
-            network_mode='blah',
-            networks=['foo'],
+            network='foo',
             oom_kill_disable=True,
             oom_score_adj=5,
             pid_mode='host',
@@ -153,7 +152,7 @@ class ContainerCollectionTest(unittest.TestCase):
                 'MemoryReservation': 123,
                 'MemorySwap': 456,
                 'MemorySwappiness': 2,
-                'NetworkMode': 'blah',
+                'NetworkMode': 'foo',
                 'OomKillDisable': True,
                 'OomScoreAdj': 5,
                 'PidMode': 'host',