Network aliases are now part of the network dictionary

Signed-off-by: Joffrey F <joffrey@docker.com>

compose/config/config.py

@@ -31,7 +31,6 @@ from .types import ServiceLink
 from .types import VolumeFromSpec
 from .types import VolumeSpec
 from .validation import match_named_volumes
-from .validation import match_network_aliases
 from .validation import validate_against_fields_schema
 from .validation import validate_against_service_schema
 from .validation import validate_depends_on
@@ -547,8 +546,6 @@ def validate_service(service_config, service_names, version):
     validate_network_mode(service_config, service_names)
     validate_depends_on(service_config, service_names)
 
-    match_network_aliases(service_config.config)
-
     if not service_dict.get('image') and has_uppercase(service_name):
         raise ConfigurationError(
             "Service '{name}' contains uppercase characters which are not valid "

compose/config/service_schema_v2.0.json

@@ -120,18 +120,28 @@
         "network_mode": {"type": "string"},
 
         "networks": {
-          "$ref": "#/definitions/list_of_strings"
-        },
-        "network_aliases": {
-          "type": "object",
-          "patternProperties": {
-            "^[a-zA-Z0-9._-]+$": {
-              "$ref": "#/definitions/list_of_strings"
+          "oneOf": [
+            {"$ref": "#/definitions/list_of_strings"},
+            {
+              "type": "object",
+              "patternProperties": {
+                "^[a-zA-Z0-9._-]+$": {
+                  "oneOf": [
+                    {
+                      "type": "object",
+                      "properties": {
+                        "aliases": {"$ref": "#/definitions/list_of_strings"}
+                      },
+                      "additionalProperties": false
+                    },
+                    {"type": "null"}
+                  ]
+                }
+              },
+              "additionalProperties": false
             }
-          },
-          "additionalProperties": false
+          ]
         },
-
         "pid": {"type": ["string", "null"]},
 
         "ports": {

compose/config/validation.py

@@ -91,19 +91,6 @@ def match_named_volumes(service_dict, project_volumes):
             )
 
 
-def match_network_aliases(service_dict):
-    networks = service_dict.get('networks', [])
-    aliased_networks = service_dict.get('network_aliases', {}).keys()
-    for n in aliased_networks:
-        if n not in networks:
-            raise ConfigurationError(
-                'Network "{0}" is referenced in network_aliases, but is not '
-                'declared in the networks list for service "{1}"'.format(
-                    n, service_dict.get('name')
-                )
-            )
-
-
 def validate_top_level_service_objects(filename, service_dicts):
     """Perform some high level validation of the service name and value.
 

compose/network.py

@@ -15,7 +15,7 @@ log = logging.getLogger(__name__)
 
 class Network(object):
     def __init__(self, client, project, name, driver=None, driver_opts=None,
-                 ipam=None, external_name=None, aliases=None):
+                 ipam=None, external_name=None):
         self.client = client
         self.project = project
         self.name = name
@@ -23,7 +23,6 @@ class Network(object):
         self.driver_opts = driver_opts
         self.ipam = create_ipam_config_from_dict(ipam)
         self.external_name = external_name
-        self.aliases = aliases or []
 
     def ensure(self):
         if self.external_name:
@@ -160,25 +159,32 @@ class ProjectNetworks(object):
             network.ensure()
 
 
-def get_network_names_for_service(service_dict):
+def get_network_aliases_for_service(service_dict):
     if 'network_mode' in service_dict:
-        return []
-    return service_dict.get('networks', ['default'])
+        return {}
+    networks = service_dict.get('networks', ['default'])
+    if isinstance(networks, list):
+        return dict((net, []) for net in networks)
+
+    return dict(
+        (net, (config or {}).get('aliases', []))
+        for net, config in networks.items()
+    )
+
+
+def get_network_names_for_service(service_dict):
+    return get_network_aliases_for_service(service_dict).keys()
 
 
 def get_networks(service_dict, network_definitions):
     networks = {}
-    aliases = service_dict.get('network_aliases', {})
-    for name in get_network_names_for_service(service_dict):
-        log.debug(name)
+    for name, aliases in get_network_aliases_for_service(service_dict).items():
         network = network_definitions.get(name)
         if network:
-            log.debug(aliases)
-            networks[network.full_name] = aliases.get(name, [])
+            networks[network.full_name] = aliases
         else:
             raise ConfigurationError(
                 'Service "{}" uses an undefined network "{}"'
                 .format(service_dict['name'], name))
 
-    log.debug(networks)
     return networks

docs/compose-file.md

@@ -451,24 +451,6 @@ id.
     net: "none"
     net: "container:[service name or container name/id]"
 
-### network_aliases
-
-> [Version 2 file format](#version-2) only.
-
-Alias names for this service on each joined network. All networks referenced
-here must also appear under the `networks` key.
-
-    networks:
-      - some-network
-      - other-network
-    network_aliases:
-      some-network:
-        - alias1
-        - alias3
-      other-network:
-        - alias2
-        - alias4
-
 ### network_mode
 
 > [Version 2 file format](#version-2) only. In version 1, use [net](#net).
@@ -493,6 +475,19 @@ Networks to join, referencing entries under the
       - some-network
       - other-network
 
+#### aliases
+
+Alias names for this service on the specified network.
+
+    networks:
+      some-network:
+        aliases:
+          - alias1
+          - alias3
+      other-network:
+        aliases:
+          - alias2
+
 ### pid
 
     pid: "host"

tests/fixtures/networks/network-aliases.yml

@@ -5,13 +5,11 @@ services:
     image: busybox
     command: top
     networks:
-      - front
-      - back
-
-    network_aliases:
       front:
-        - forward_facing
-        - ahead
+        aliases:
+          - forward_facing
+          - ahead
+      back:
 
 networks:
   front: {}

tests/unit/config/config_test.py

@@ -556,27 +556,6 @@ class ConfigTest(unittest.TestCase):
         assert services[1]['name'] == 'db'
         assert services[2]['name'] == 'web'
 
-    def test_invalid_network_alias(self):
-        config_details = build_config_details({
-            'version': '2',
-            'services': {
-                'web': {
-                    'image': 'busybox',
-                    'networks': ['hello'],
-                    'network_aliases': {
-                        'world': ['planet', 'universe']
-                    }
-                }
-            },
-            'networks': {
-                'hello': {},
-                'world': {}
-            }
-        })
-        with pytest.raises(ConfigurationError) as exc:
-            config.load(config_details)
-        assert 'not declared in the networks list' in exc.exconly()
-
     def test_config_build_configuration(self):
         service = config.load(
             build_config_details(