Fix handling of service.dockerfile key

Made invalid in v2 format
Doesn't break build config anymore

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

compose/config/config.py

@@ -562,6 +562,12 @@ def normalize_v1_service_format(service_dict):
             service_dict['logging']['options'] = service_dict['log_opt']
             del service_dict['log_opt']
 
+    if 'dockerfile' in service_dict:
+        service_dict['build'] = service_dict.get('build', {})
+        service_dict['build'].update({
+            'dockerfile': service_dict.pop('dockerfile')
+        })
+
     return service_dict
 
 

compose/config/service_schema_v2.json

@@ -45,7 +45,6 @@
         "devices": {"type": "array", "items": {"type": "string"}, "uniqueItems": true},
         "dns": {"$ref": "#/definitions/string_or_list"},
         "dns_search": {"$ref": "#/definitions/string_or_list"},
-        "dockerfile": {"type": "string"},
         "domainname": {"type": "string"},
         "entrypoint": {
           "oneOf": [