Ran Isenberg

In this blog post I’ll provide a working process for getting a feature flag right in AWS Lambda: from design, to implementation, testing and all the way to production and retirement.

t some point during my work on AWS Lambdas, I realized that I needed a quick and simple method to change my Lambda’s behavior without changing its’ code.
One obvious solution was to use static hardcoded environment variables as feature flags. However, this solution did not last for long, as it required that I redeploy my AWS Lambda per change.
I thought that it would make more sense to use dynamic feature flags in my AWS Lambda instead of having static -hardcoded environment variables… Show more

t some point during my work on AWS Lambdas, I realized that I needed a quick and simple method to change my Lambda’s behavior without changing its’ code.
One obvious solution was to use static hardcoded environment variables as feature flags. However, this solution did not last for long, as it required that I redeploy my AWS Lambda per change.
I thought that it would make more sense to use dynamic feature flags in my AWS Lambda instead of having static -hardcoded environment variables. This method decoupled the feature flags from the service which consumed them.
So, I went ahead, did my research, and eventually created a solution. It resulted in a code donation to the excellent AWS Lambda Powertools repository, a brand new Python utility and a blog post describing the solution.
However, the more I used the solution, the more I realized that my requirements developed and changed. I now needed to extend the solution even further. Show less

Next Wednesday, August 11
@am29d
and I will discuss feature toggles and show how to implement smart toggles on AWS.

We will discuss:
what feature toggles are
use cases & challenges
code examples & tests
best practices

Join us next week at 5pm CEST on http://twitch.tv/aws

Webinar on how to build a resilient input handling with AWS Lambda Powertools Parser!
https://www.twitch.tv/videos/1034744364
https://github.com/awslabs/aws-lambda-powertools-python

My talk is at 1:06:34 - 1:15:55 markers

Or on my youtube channel:
https://www.youtube.com/watch?v=7GVCbouemCo&t=6s&ab_channel=RanIsenberg

https://www.youtube.com/watch?v=W7rF62a96G0
In this hands-on session webinar, we present why we chose AWS CDK for our SaaS infrastructure as part of CyberArk’s journey to become cloud-native and serverless. Live demo included.

https://www.meetup.com/CyberArk-Meetups/events/271226496/

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“Reaching the Cloud” webinar series takes you through our journey at CyberArk to become cloud-native and serverless.
In this hands-on AWS… Show more

https://www.youtube.com/watch?v=W7rF62a96G0
In this hands-on session webinar, we present why we chose AWS CDK for our SaaS infrastructure as part of CyberArk’s journey to become cloud-native and serverless. Live demo included.

https://www.meetup.com/CyberArk-Meetups/events/271226496/

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“Reaching the Cloud” webinar series takes you through our journey at CyberArk to become cloud-native and serverless.
In this hands-on AWS CDK session, we will share:
* Our considerations for infrastructure as serverless developers
* Pros and cons for CDK and why we chose it out of other AWS
* Frameworks as our SaaS infrastructure
* Effective steps in CDK deployment
* Demo and use case for Tenant Management Service

The session will be hosted on Twitch - Join us July 28, 18:00

Main speaker: Ran Isenberg, Software Architect, CyberArk.

The event will take place on Twitch. Viewing the stream is possible as a guest. However, you will need to create a Twitch account if you wish to ask questions. Show less

In this blog, we’ll discuss how to parse event schemas correctly and how to handle event validation exceptions. I’ll focus on Python, but these guidelines & tips are applicable to any other programming language.

n my previous blog post “AWS Lambda Event Validation — from Zero to Hero”, I showed how to parse AWS Lambda event schemas correctly and how to handle event validation exceptions.
The “weapon” of choice was an excellent Python library called Pydantic.
In this blog post we’ll take it up a notch and improve our validation solution even further by using a new & awesome library called AWS Lambda Powertools.

Feature toggles are a powerful tool but as Martin Fowler mentioned in this article, they can also be quite hard to implement.
In this blog I’ll demonstrate how feature toggles in AWS can become a simple task and a great tool that you must include in your AWS Lambdas.
I’ll implement both static and dynamic feature toggles. I’ll demonstrate that by using Python, AWS AppConfig service, AWS Lambda Powertools and Pydantic, you can start using feature toggles in your lambdas with ease right… Show more

Feature toggles are a powerful tool but as Martin Fowler mentioned in this article, they can also be quite hard to implement.
In this blog I’ll demonstrate how feature toggles in AWS can become a simple task and a great tool that you must include in your AWS Lambdas.
I’ll implement both static and dynamic feature toggles. I’ll demonstrate that by using Python, AWS AppConfig service, AWS Lambda Powertools and Pydantic, you can start using feature toggles in your lambdas with ease right away..... Show less