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Articles by Peter Sankauskas

Lambda Chat

Lambda Chat

AWS Lambda is the future, it's the new normal. Great! Awesome.

Can you do anything useful with it?

We took that as a challenge. Could we, using AWS Lambda, create a multi-user, dynamic web application without using EC2 or resorting to hacks? I mean no instances, no ELBs, not even a security group. And especially no hard-coded AWS credentials.

We did, and it's called Lambda Chat.

Live demo

Code on GitHub

Lambda Chat is a simple chat application using AWS Lambda, SNS, DynamoDB and S3.

Static websites can be hosted …

Fear the Chaos Monkey? Think again!

Fear the Chaos Monkey? Think again!

On July 30, 2012, Netflix open sourced the Simian Army, which includes the now world famous Chaos Monkey. That was 3 years ago. For those not familiar, Chaos Monkey is a little service that runs in the background and goes around killing EC2 instances. Yes, that's right:

Chaos Monkey terminates live servers with real users in production.

The question is...

Why is this scary?

Why would I, running a mission critical system, not want to be continuously testing the resiliency of my service? Why would I want to be woken up in the middle of the night by PagerDuty just …

The DOs and DON'Ts of Blue/Green Deployment

The DOs and DON'Ts of Blue/Green Deployment

The term "blue/green deployment" is so misunderstood, we can't even decide on what to call it. Netflix call it Red/Black Deployment, while others call it A/B Deployment. Personally, I don't even know which color represents which thing, but this is only the beginning of the confusion.

So, I thought it might help to get some thoughts out there, have others weigh in, and see if we can't reach some consensus. After all, it's been 5 years since the oracle spoke. :-)

Here goes...

First off, blue/green deployment is the process of having 2 sets of machines, and …

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