Add support for device_cgroup_rules in v2.3 files

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

compose/config/config.py

@@ -72,6 +72,7 @@ DOCKER_CONFIG_KEYS = [
     'cpus',
     'cpuset',
     'detach',
+    'device_cgroup_rules',
     'devices',
     'dns',
     'dns_search',
@@ -1045,7 +1046,7 @@ def merge_service_dicts(base, override, version):
 
     for field in [
         'cap_add', 'cap_drop', 'expose', 'external_links',
-        'security_opt', 'volumes_from',
+        'security_opt', 'volumes_from', 'device_cgroup_rules',
     ]:
         md.merge_field(field, merge_unique_items_lists, default=[])
 

compose/config/config_schema_v2.3.json

@@ -99,8 +99,8 @@
             }
           ]
         },
-        "cap_add": {"type": "array", "items": {"type": "string"}, "uniqueItems": true},
-        "cap_drop": {"type": "array", "items": {"type": "string"}, "uniqueItems": true},
+        "cap_add": {"$ref": "#/definitions/list_of_strings"},
+        "cap_drop": {"$ref": "#/definitions/list_of_strings"},
         "cgroup_parent": {"type": "string"},
         "command": {
           "oneOf": [
@@ -137,7 +137,8 @@
             }
           ]
         },
-        "devices": {"type": "array", "items": {"type": "string"}, "uniqueItems": true},
+        "device_cgroup_rules": {"$ref": "#/definitions/list_of_strings"},
+        "devices": {"$ref": "#/definitions/list_of_strings"},
         "dns_opt": {
           "type": "array",
           "items": {
@@ -184,7 +185,7 @@
           ]
         },
 
-        "external_links": {"type": "array", "items": {"type": "string"}, "uniqueItems": true},
+        "external_links": {"$ref": "#/definitions/list_of_strings"},
         "extra_hosts": {"$ref": "#/definitions/list_or_dict"},
         "healthcheck": {"$ref": "#/definitions/healthcheck"},
         "hostname": {"type": "string"},
@@ -193,7 +194,7 @@
         "ipc": {"type": "string"},
         "isolation": {"type": "string"},
         "labels": {"$ref": "#/definitions/labels"},
-        "links": {"type": "array", "items": {"type": "string"}, "uniqueItems": true},
+        "links": {"$ref": "#/definitions/list_of_strings"},
 
         "logging": {
             "type": "object",
@@ -264,7 +265,7 @@
         "restart": {"type": "string"},
         "runtime": {"type": "string"},
         "scale": {"type": "integer"},
-        "security_opt": {"type": "array", "items": {"type": "string"}, "uniqueItems": true},
+        "security_opt": {"$ref": "#/definitions/list_of_strings"},
         "shm_size": {"type": ["number", "string"]},
         "sysctls": {"$ref": "#/definitions/list_or_dict"},
         "pids_limit": {"type": ["number", "string"]},
@@ -335,7 +336,7 @@
           }
         },
         "volume_driver": {"type": "string"},
-        "volumes_from": {"type": "array", "items": {"type": "string"}, "uniqueItems": true},
+        "volumes_from": {"$ref": "#/definitions/list_of_strings"},
         "working_dir": {"type": "string"}
       },
 

compose/service.py

@@ -66,6 +66,7 @@ HOST_CONFIG_KEYS = [
     'cpu_shares',
     'cpus',
     'cpuset',
+    'device_cgroup_rules',
     'devices',
     'dns',
     'dns_search',
@@ -944,6 +945,7 @@ class Service(object):
             device_write_bps=blkio_config.get('device_write_bps'),
             device_write_iops=blkio_config.get('device_write_iops'),
             mounts=options.get('mounts'),
+            device_cgroup_rules=options.get('device_cgroup_rules'),
         )
 
     def get_secret_volumes(self):

tests/integration/service_test.py

@@ -265,6 +265,11 @@ class ServiceTest(DockerClientTestCase):
         service.start_container(container)
         assert container.inspect()['Config']['MacAddress'] == '02:42:ac:11:65:43'
 
+    def test_create_container_with_device_cgroup_rules(self):
+        service = self.create_service('db', device_cgroup_rules=['c 7:128 rwm'])
+        container = service.create_container()
+        assert container.get('HostConfig.DeviceCgroupRules') == ['c 7:128 rwm']
+
     def test_create_container_with_specified_volume(self):
         host_path = '/tmp/host-path'
         container_path = '/container-path'

tests/unit/config/config_test.py

@@ -2558,6 +2558,21 @@ class ConfigTest(unittest.TestCase):
         actual = config.merge_service_dicts(base, override, V2_3)
         assert actual['healthcheck'] == override['healthcheck']
 
+    def test_merge_device_cgroup_rules(self):
+        base = {
+            'image': 'bar',
+            'device_cgroup_rules': ['c 7:128 rwm', 'x 3:244 rw']
+        }
+
+        override = {
+            'device_cgroup_rules': ['c 7:128 rwm', 'f 0:128 n']
+        }
+
+        actual = config.merge_service_dicts(base, override, V2_3)
+        assert sorted(actual['device_cgroup_rules']) == sorted(
+            ['c 7:128 rwm', 'x 3:244 rw', 'f 0:128 n']
+        )
+
     def test_external_volume_config(self):
         config_details = build_config_details({
             'version': '2',