Category: Python

Monitor AWS Trusted Advisor Checks

AWS Trusted Advisor is an important tool which provides more than 50 checks across four different categories Cost Optimization, Performance, Security & Fault Tolerance (at the moment of writing this post). But I have noticed that this is not being used more extensively considering the importance of it. Hence I created couple of lambda functions […]
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Automated Blue/Green deployment using Lambda and CloudFormation

Blue/Green deployment is a well-known method to deploy an application without any downtime. Performing DNS switch is one of the very common techniques to achieve this. Using DNS switch has a minor issue with DNS caching which might take some time for DNS change to be propagated. Apart from DNS switch, AWS gives us two […]
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Sending response back to CFN custom resource from python Lambda function

CloudFormation uses a pre-signed S3 URL to receive the response back from the custom resources managed by it. There are few blue prints available for Node.js Lambda custom resources but nothing available for python yet. Hence I created this simple function which shall be used to send the response back to CFN custom resource by […]
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