Merge pull request #1812 from rycus86/greedy_network_list

Fetch network details with network lists greedily

docker/models/networks.py

 from ..api import APIClient
+from ..utils import version_gte
 from .containers import Container
 from .resource import Model, Collection
 
@@ -153,7 +154,7 @@ class NetworkCollection(Collection):
         resp = self.client.api.create_network(name, *args, **kwargs)
         return self.get(resp['Id'])
 
-    def get(self, network_id):
+    def get(self, network_id, *args, **kwargs):
         """
         Get a network by its ID.
 
@@ -175,7 +176,9 @@ class NetworkCollection(Collection):
                 If the server returns an error.
 
         """
-        return self.prepare_model(self.client.api.inspect_network(network_id))
+        return self.prepare_model(
+            self.client.api.inspect_network(network_id, *args, **kwargs)
+        )
 
     def list(self, *args, **kwargs):
         """
@@ -184,6 +187,13 @@ class NetworkCollection(Collection):
         Args:
             names (:py:class:`list`): List of names to filter by.
             ids (:py:class:`list`): List of ids to filter by.
+            filters (dict): Filters to be processed on the network list.
+                Available filters:
+                - ``driver=[<driver-name>]`` Matches a network's driver.
+                - ``label=[<key>]`` or ``label=[<key>=<value>]``.
+                - ``type=["custom"|"builtin"]`` Filters networks by type.
+            greedy (bool): Fetch more details for each network individually.
+                You might want this to get the containers attached to them.
 
         Returns:
             (list of :py:class:`Network`) The networks on the server.
@@ -192,8 +202,13 @@ class NetworkCollection(Collection):
             :py:class:`docker.errors.APIError`
                 If the server returns an error.
         """
+        greedy = kwargs.pop('greedy', False)
         resp = self.client.api.networks(*args, **kwargs)
-        return [self.prepare_model(item) for item in resp]
+        networks = [self.prepare_model(item) for item in resp]
+        if greedy and version_gte(self.client.api._version, '1.28'):
+            for net in networks:
+                net.reload()
+        return networks
 
     def prune(self, filters=None):
         self.client.api.prune_networks(filters=filters)

tests/integration/models_networks_test.py

@@ -3,7 +3,7 @@ from .. import helpers
 from .base import BaseIntegrationTest, TEST_API_VERSION
 
 
-class ImageCollectionTest(BaseIntegrationTest):
+class NetworkCollectionTest(BaseIntegrationTest):
 
     def test_create(self):
         client = docker.from_env(version=TEST_API_VERSION)
@@ -47,7 +47,7 @@ class ImageCollectionTest(BaseIntegrationTest):
         assert network.id not in [n.id for n in client.networks.list()]
 
 
-class ImageTest(BaseIntegrationTest):
+class NetworkTest(BaseIntegrationTest):
 
     def test_connect_disconnect(self):
         client = docker.from_env(version=TEST_API_VERSION)
@@ -59,6 +59,12 @@ class ImageTest(BaseIntegrationTest):
         network.connect(container)
         container.start()
         assert client.networks.get(network.id).containers == [container]
+        network_containers = list(
+            c
+            for net in client.networks.list(ids=[network.id], greedy=True)
+            for c in net.containers
+        )
+        assert network_containers == [container]
         network.disconnect(container)
         assert network.containers == []
         assert client.networks.get(network.id).containers == []

tests/unit/models_networks_test.py

@@ -4,7 +4,7 @@ from .fake_api import FAKE_NETWORK_ID, FAKE_CONTAINER_ID
 from .fake_api_client import make_fake_client
 
 
-class ImageCollectionTest(unittest.TestCase):
+class NetworkCollectionTest(unittest.TestCase):
 
     def test_create(self):
         client = make_fake_client()
@@ -37,7 +37,7 @@ class ImageCollectionTest(unittest.TestCase):
         assert client.api.networks.called_once_with(names=["foobar"])
 
 
-class ImageTest(unittest.TestCase):
+class NetworkTest(unittest.TestCase):
 
     def test_connect(self):
         client = make_fake_client()