add image_name_to_id filter

filter_plugins/openstack.py

@@ -35,9 +35,22 @@ def image_id_to_name(host_vars, user, password, tenant, auth_url):
     except glanceclient.exc.HTTPNotFound:
         raise errors.AnsibleFilterError('There is no image of id {0}'.format(host_vars))
 
+def image_name_to_id(host_vars, user, password, tenant, auth_url):
+    auth = identity.Password(auth_url=auth_url, username=user,
+                         password=password, tenant_name=tenant)
+    sess = session.Session(auth=auth)
+    token = auth.get_token(sess)
+    endpoint = auth.get_endpoint(sess, service_name='glance', service_type='image')
+    glance = GlanceClient('2', endpoint=endpoint, token=token)
+    for i in glance.images.list():
+        if i.name == host_vars:
+          return i.id
+    raise errors.AnsibleFilterError('There is no image of name {0}'.format(host_vars))
+
 class FilterModule (object):
     def filters(self):
         return {"flavor_id_to_name": flavor_id_to_name,
             "flavor_name_to_id": flavor_name_to_id,
             "image_id_to_name": image_id_to_name,
+            "image_name_to_id": image_name_to_id,
         }