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This Python script gets a list of all regions, finds EC2 instances<\/strong>, RDS instances<\/strong> and ASG<\/strong> in them, and if there is no "prevent_stop<\/strong>" tag equal to "true<\/strong>" on the resource, then it stops this resource, and in the case of ASG<\/strong> it scaledown it to 0<\/strong>.<\/p>\n <\/p>\n List of required permissions to run (besides the "AWSLambdaExecute<\/strong>" policy):<\/p>\n This Python script gets a list of all regions, finds EC2 instances, RDS instances and ASG in them, and if there is no "prevent_stop" tag equal to "true" on the resource, then it stops this resource, and in the case of ASG it scaledown it to 0. main.py: List of required permissions to run … \u041f\u0440\u043e\u0434\u043e\u043b\u0436\u0438\u0442\u044c \u0447\u0438\u0442\u0430\u0442\u044c "Lambda — For stopping EC2 instances, RDS instances and ASG downscale in all regions"<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[599],"tags":[543,1439,885,1527,1529],"_links":{"self":[{"href":"https:\/\/artem.services\/index.php?rest_route=\/wp\/v2\/posts\/2107"}],"collection":[{"href":"https:\/\/artem.services\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/artem.services\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/artem.services\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/artem.services\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2107"}],"version-history":[{"count":4,"href":"https:\/\/artem.services\/index.php?rest_route=\/wp\/v2\/posts\/2107\/revisions"}],"predecessor-version":[{"id":2120,"href":"https:\/\/artem.services\/index.php?rest_route=\/wp\/v2\/posts\/2107\/revisions\/2120"}],"wp:attachment":[{"href":"https:\/\/artem.services\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2107"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/artem.services\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2107"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/artem.services\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2107"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}main.py:<\/h3>\n
\r\nimport boto3\r\n\r\ncustom_ec2_filter = [\r\n {\r\n 'Name': 'instance-state-name',\r\n 'Values': ['running', 'pending']\r\n }\r\n]\r\n\r\n# Get list of EC2 regions\r\nec2 = boto3.client('ec2')\r\nregions = [region['RegionName'] for region in ec2.describe_regions()['Regions']]\r\n\r\ndef main(event, context):\r\n for region in regions:\r\n print("Region: " + str(region))\r\n # ASG\r\n print("Searching for ASG...")\r\n asg = boto3.client('autoscaling', region_name = region)\r\n asg_list = [asg_name['AutoScalingGroupName'] for asg_name in asg.describe_auto_scaling_groups()['AutoScalingGroups']]\r\n for asg_name in asg_list:\r\n api_response = asg.describe_auto_scaling_groups(\r\n AutoScalingGroupNames = [\r\n asg_name,\r\n ]\r\n )\r\n tags = (api_response["AutoScalingGroups"][0]["Tags"])\r\n asg_scaledown = False \r\n if 'prevent_stop' not in [tag['Key'] for tag in tags]:\r\n asg_scaledown = True\r\n else:\r\n for tag in tags:\r\n if tag["Key"] == 'prevent_stop' and tag["Value"] != 'true':\r\n asg_scaledown = True\r\n if asg_scaledown == True:\r\n minSize = (api_response["AutoScalingGroups"][0]["MinSize"])\r\n maxSize = (api_response["AutoScalingGroups"][0]["MaxSize"])\r\n desiredCapacity = (api_response["AutoScalingGroups"][0]["DesiredCapacity"])\r\n if minSize != 0 or maxSize != 0 or desiredCapacity != 0:\r\n print("Scalling down ASG: " + str(asg_name))\r\n asg.update_auto_scaling_group(\r\n AutoScalingGroupName = asg_name,\r\n MinSize = 0,\r\n MaxSize = 0,\r\n DesiredCapacity = 0\r\n )\r\n # EC2 Instances\r\n print("Searching for running instances...")\r\n ec2 = boto3.resource('ec2', region_name = region)\r\n instances_list = ec2.instances.filter(Filters = custom_ec2_filter)\r\n for instance in instances_list:\r\n if 'prevent_stop' not in [tag['Key'] for tag in instance.tags]:\r\n print("Stopping instance: " + str(instance.id))\r\n instance.stop()\r\n else:\r\n for tag in instance.tags:\r\n if tag["Key"] == 'prevent_stop' and tag["Value"] != 'true':\r\n print("Stopping instance: " + str(instance.id))\r\n instance.stop()\r\n # RDS\r\n print("Searching for running RDS instances...")\r\n rds = boto3.client('rds', region_name = region)\r\n rds_list = [instance['DBInstanceIdentifier'] for instance in rds.describe_db_instances()['DBInstances']]\r\n for instance in rds_list:\r\n arn = rds.describe_db_instances(DBInstanceIdentifier = instance)['DBInstances'][0]['DBInstanceArn']\r\n tags = rds.list_tags_for_resource(ResourceName = arn)['TagList']\r\n stop_instance = False\r\n if 'prevent_stop' not in [tag['Key'] for tag in tags]:\r\n stop_instance = True\r\n else:\r\n for tag in tags:\r\n if tag["Key"] == 'prevent_stop' and tag["Value"] != 'true':\r\n stop_instance = True\r\n if stop_instance == True:\r\n instance_status = rds.describe_db_instances(DBInstanceIdentifier = instance)['DBInstances'][0]['DBInstanceStatus']\r\n if instance_status != "stopping" and instance_status != "stopped":\r\n engine = rds.describe_db_instances(DBInstanceIdentifier = instance)['DBInstances'][0]['Engine']\r\n print("Engine: " + str(engine))\r\n if engine.startswith('aurora') == True:\r\n cluster_id = rds.describe_db_instances(DBInstanceIdentifier = instance)['DBInstances'][0]['DBClusterIdentifier']\r\n print("Stopping Aurora cluster: " + str(cluster_id))\r\n rds.stop_db_cluster(DBClusterIdentifier = cluster_id)\r\n else:\r\n print("Stopping RDS instances: " + str(instance))\r\n rds.stop_db_instance(DBInstanceIdentifier = instance)\r\n print("----------------------------------------")\r\n\r\nif __name__ == '__main__':\r\n main()\r\n<\/pre>\n\n