Support for legacy volume binds (ansible compat)

docker/client.py

@@ -702,14 +702,7 @@ class Client(requests.Session):
             'LxcConf': lxc_conf
         }
         if binds:
-            bind_pairs = [
-                '%s:%s:%s' % (
-                    h, d['bind'],
-                    'ro' if 'ro' in d and d['ro'] else 'rw'
-                ) for h, d in binds.items()
-            ]
-
-            start_config['Binds'] = bind_pairs
+            start_config['Binds'] = utils.convert_volume_binds(binds)
 
         if port_bindings:
             start_config['PortBindings'] = utils.convert_port_bindings(

docker/utils/__init__.py

 from .utils import (
-    compare_version, convert_port_bindings, mkbuildcontext, ping, tar, parse_repository_tag
+    compare_version, convert_port_bindings, convert_volume_binds,
+    mkbuildcontext, ping, tar, parse_repository_tag
 ) # flake8: noqa

docker/utils/utils.py

@@ -115,6 +115,16 @@ def convert_port_bindings(port_bindings):
             result[key] = [_convert_port_binding(v)]
     return result
 
+def convert_volume_binds(binds):
+    result = []
+    for k, v in binds.items():
+        if isinstance(d, dict):
+            result.append('%s:%s:%s' % (
+                k, v['bind'], 'ro' if v.get('ro', False) else 'rw'
+            ))
+        else:
+            result.append('%s:%s:rw' % (k, v))
+    return result
 
 def parse_repository_tag(repo):
     column_index = repo.rfind(':')