Add support for build isolation parameter

Signed-off-by: Joffrey F <[email protected]>

compose/config/config.py

@@ -1119,6 +1119,7 @@ def merge_build(output, base, override):
     md.merge_scalar('network')
     md.merge_scalar('target')
     md.merge_scalar('shm_size')
+    md.merge_scalar('isolation')
     md.merge_mapping('args', parse_build_arguments)
     md.merge_field('cache_from', merge_unique_items_lists, default=[])
     md.merge_mapping('labels', parse_labels)

compose/config/config_schema_v2.1.json

@@ -88,7 +88,8 @@
                 "context": {"type": "string"},
                 "dockerfile": {"type": "string"},
                 "args": {"$ref": "#/definitions/list_or_dict"},
-                "labels": {"$ref": "#/definitions/labels"}
+                "labels": {"$ref": "#/definitions/labels"},
+                "isolation": {"type": "string"}
               },
               "additionalProperties": false
             }

compose/config/config_schema_v2.2.json

@@ -90,7 +90,8 @@
                 "args": {"$ref": "#/definitions/list_or_dict"},
                 "labels": {"$ref": "#/definitions/labels"},
                 "cache_from": {"$ref": "#/definitions/list_of_strings"},
-                "network": {"type": "string"}
+                "network": {"type": "string"},
+                "isolation": {"type": "string"}
               },
               "additionalProperties": false
             }

compose/config/config_schema_v2.3.json

@@ -93,7 +93,8 @@
                 "network": {"type": "string"},
                 "target": {"type": "string"},
                 "shm_size": {"type": ["integer", "string"]},
-                "extra_hosts": {"$ref": "#/definitions/list_or_dict"}
+                "extra_hosts": {"$ref": "#/definitions/list_or_dict"},
+                "isolation": {"type": "string"}
               },
               "additionalProperties": false
             }

compose/service.py

@@ -1016,7 +1016,8 @@ class Service(object):
             container_limits={
                 'memory': parse_bytes(memory) if memory else None
             },
-            gzip=gzip
+            gzip=gzip,
+            isolation=build_opts.get('isolation', self.options.get('isolation', None)),
         )
 
         try:

tests/integration/service_test.py

@@ -1123,6 +1123,20 @@ class ServiceTest(DockerClientTestCase):
         service.build(gzip=True)
         assert service.image()
 
+    @v2_1_only()
+    def test_build_with_isolation(self):
+        base_dir = tempfile.mkdtemp()
+        self.addCleanup(shutil.rmtree, base_dir)
+        with open(os.path.join(base_dir, 'Dockerfile'), 'w') as f:
+            f.write('FROM busybox\n')
+
+        service = self.create_service('build_isolation', build={
+            'context': text_type(base_dir),
+            'isolation': 'default',
+        })
+        service.build()
+        assert service.image()
+
     def test_start_container_stays_unprivileged(self):
         service = self.create_service('web')
         container = create_and_start_container(service).inspect()

tests/unit/service_test.py

@@ -562,6 +562,33 @@ class ServiceTest(unittest.TestCase):
         assert called_build_args['arg1'] == build_args['arg1']
         assert called_build_args['arg2'] == 'arg2'
 
+    def test_build_with_isolation_from_service_config(self):
+        self.mock_client.build.return_value = [
+            b'{"stream": "Successfully built 12345"}',
+        ]
+
+        service = Service('foo', client=self.mock_client, build={'context': '.'}, isolation='hyperv')
+        service.build()
+
+        assert self.mock_client.build.call_count == 1
+        called_build_args = self.mock_client.build.call_args[1]
+        assert called_build_args['isolation'] == 'hyperv'
+
+    def test_build_isolation_from_build_override_service_config(self):
+        self.mock_client.build.return_value = [
+            b'{"stream": "Successfully built 12345"}',
+        ]
+
+        service = Service(
+            'foo', client=self.mock_client, build={'context': '.', 'isolation': 'default'},
+            isolation='hyperv'
+        )
+        service.build()
+
+        assert self.mock_client.build.call_count == 1
+        called_build_args = self.mock_client.build.call_args[1]
+        assert called_build_args['isolation'] == 'default'
+
     def test_config_dict(self):
         self.mock_client.inspect_image.return_value = {'Id': 'abcd'}
         service = Service(