HistoryPurge: Clearing 219 old commits

py/nextSubnetLambda.py

@@ -0,0 +1,38 @@
+"""
+To use this function in lambda, one needs to upload netaddr and this code as a package. here is how
+pip3 install netaddr -t ./
+zip -r ../acrolinxNextSubnet.zip .
+"""
+from netaddr import *
+import boto3
+import cfnresponse
+import json
+import os
+
+def lambda_handler(event, context):
+    my_vpc = {
+        'eu-west-1': 'vpc-55a5a930',
+        'us-west-2': 'vpc-7155ca14'
+    }
+    session = boto3.session.Session()
+    my_region = session.region_name
+    ec2 = session.resource('ec2')
+    vpc = ec2.Vpc(my_vpc[my_region])
+    subnets = []
+    for subnet in vpc.subnets.all():
+        subnets.append(IPNetwork(subnet.cidr_block))
+
+    lastSubnet = sorted(subnets).pop()
+    nextSubnet = str(lastSubnet.next())
+
+    return {
+       'region': my_region,
+       'body': json.dumps(nextSubnet)
+    }
+
+#    response_data = {}
+#    response_data = {"cidr": nextSubnet}
+#    my_data = nextSubnet
+#    cfnresponse.send(event,context,cfnresponse.SUCCESS, response_data, my_data)
+
+