Merge pull request #1433 from bfirsh/remove-whitespace-from-json-representation-of-container-config

Remove whitespace from json hash

compose/utils.py

@@ -3,7 +3,7 @@ import hashlib
 
 
 def json_hash(obj):
-    dump = json.dumps(obj, sort_keys=True)
+    dump = json.dumps(obj, sort_keys=True, separators=(',', ':'))
     h = hashlib.sha256()
     h.update(dump)
     return h.hexdigest()