update for python 3.6

Author: osiegmar

README.md

@@ -61,13 +61,7 @@ TBD
             "Action": [
                 "logs:CreateLogGroup",
                 "logs:CreateLogStream",
-                "logs:PutLogEvents"
-            ],
-            "Resource": "arn:aws:logs:*:*:*"
-        },
-        {
-            "Effect": "Allow",
-            "Action": [
+                "logs:PutLogEvents",
                 "ec2:CreateSnapshot",
                 "ec2:CreateTags",
                 "ec2:DeleteSnapshot",
@@ -90,7 +84,7 @@ TBD
     * Enable trigger
 * Configure function
     * Enter name
-    * Select "Python 2.7" from the Runtime dropdown
+    * Select "Python 3.6" from the Runtime dropdown
     * Copy the source code from ebs-backup.py to code window
     * Check that Handler is "lambda_function.lambda_handler"
     * Choose the previously created IAM role

ebs-backup.py

@@ -74,13 +74,13 @@ def backup_instance(instance):
             'InstanceName': instance_name,
             'DeleteOn': delete_date_fmt
         }
-        tag_list = map(lambda (k, v): {'Key': k, 'Value': v}, list(tags.items()))
+        tag_list = list(map(lambda kv: {'Key': kv[0], 'Value': kv[1]}, list(tags.items())))
         client.create_tags(Resources=snapshot_ids, Tags=tag_list)
 
 
 def parse_config(instance, instance_name, config):
     try:
-        backup_configuration = map(int, config.split(','))
+        backup_configuration = list(map(int, config.split(',')))
         if any(i < 0 for i in backup_configuration):
             raise ValueError('Values must be >= 0')
         return backup_configuration

terraform/aws-lambda.tf

@@ -57,7 +57,7 @@ resource "aws_lambda_function" "lambda_ebs_backup" {
     role = "${aws_iam_role.lambda_ebs_backup.arn}"
     handler = "ebs-backup.lambda_handler"
     source_code_hash = "${base64sha256(file("ebs-backup.zip"))}"
-    runtime = "python2.7"
+    runtime = "python3.6"
     timeout = 60
 }