update resource tag

Author: jcstorms1

datadog_lambda/tags.py

@@ -48,7 +48,7 @@ def parse_lambda_tags_from_arn(arn):
     else:
         _, _, _, region, account_id, _, function_name, alias = split_arn
 
-        resource = function_name + ":" + alias
+        resource = function_name + "/" + alias
 
         return [
             "region:{}".format(region),

tests/test_tags.py

@@ -34,7 +34,7 @@ def test_parse_lambda_tags_from_arn(self):
                 "region:us-west-1",
                 "account_id:1234597598159",
                 "functionname:other-function",
-                "resource:other-function:function-alias",
+                "resource:other-function/function-alias",
             ],
         )
 

tests/test_wrapper.py

@@ -223,7 +223,7 @@ def lambda_handler(event, context):
                         "region:us-west-1",
                         "account_id:123457598159",
                         "functionname:python-layer-test",
-                        "resource:python-layer-test:foobar",
+                        "resource:python-layer-test/foobar",
                         "cold_start:true",
                         "memorysize:256",
                         "executedversion:1",