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Digest #104: Testing CloudFormation Stacks 🧪

#104: Testing CloudFormation Stacks
This week, I've scoured the web for the most insightful articles, practical guides, and open-source projects to share with you.

Let's begin by understanding how to optimize DynamoDB costs with a few practical examples. There's also an intriguing discussion on why engineering for 99.5% uptime might be more cost-effective than 99.99% for most startups. Let's explore this debate together.

I've found a tested way to organise folders and structure environments in Terragrunt. Moreover, there's an interesting guide on building a Serverless data processing flow using Kinesis Data Firehose and Terraform which you should definitely check out.

GitOps has been making waves recently, and I've found a fantastic hands-on guide featuring Flux, Flagger, and Linkerd. Also, I've found an insightful post-mortem of Datadog’s $5M outage, a worthy read to ensure such expensive mistakes aren't repeated in your own systems.

Are you considering migrating from Supabase? A real-life migration story will provide you with valuable insights and lessons learned. It's definitely a must-read!

For the open-source project highlights this week, I'm excited to introduce Cloud-Radar, a Python module for testing Cloudformation templates/stacks; Terrap, a CLI tool that scans your infrastructure and points out necessary changes; and Sniffnet, an application designed to conveniently monitor network traffic. These are all fantastic additions to your DevOps toolbox.

Happy reading!
📖 TUTORIALS OF THE WEEK
"How you should think about DynamoDB costs" - A few practical examples of how to make decisions about DynamoDB costs - Read more »
"Uptime guarantees" - Engineering for 99.5% uptime is more cost-effective than 99.99% for most startups - Read more »
"Organize Terragrunt configuration for production grade environment and deploy with Github Actions" - A tried and tested way to organise folders, structure environments in Terragrunt - Read more »
"Learn serverless on AWS step-by-step" - This series explains the basics of serverless on AWS. This last article deep dive into Step Functions - Read more »
"Serverless data processing flow with Kinesis Data Firehose and Terraform" - Although the sample code is minimalistic, it can be used as a starting point for similar data processing flows - Read more »
"Using Terragrunt run-all in AWS CI/CD" - A solution for detecting modules that were deleted and applying the change with terragrunt run-all in a CI/CD pipeline using CodePipeline and CodeBuild - Read more »
"AWS Lambda for the containers developer" - For folks coming from a traditional container background, AWS Lambda really isn’t that different - Read more »
"Real-World GitOps with Flux, Flagger, and Linkerd" - What you need to know to use Flux, Flagger, and Linkerd together for successful GitOps in the real world - Read more »
🛠 PROJECTS OF THE WEEK
1️⃣ Cloud-Radar is a python module that allows testing of Cloudformation Templates/Stacks using Python - Learn more »
2️⃣ Linux tool to show progress for cp, mv, dd, ... (formerly known as cv) - Learn more »
3️⃣ Terrap is a CLI tool that scans your infrastructure and identifies any required changes - Learn more »
4️⃣ KeyDB is a high-performance fork of Redis with a focus on multithreading, memory efficiency, and high throughput - Learn more »
5️⃣ Sniffnet is an application to comfortably monitor your network traffic - Learn more »
6️⃣ JunoDB is PayPal's home-grown secure, consistent, and highly available key-value store providing low, single-digit millisecond, latency at any scale - Learn more »
📰 NEWSWORTHY STORIES
"Serverless, a CTO’s perspective" - Read more »
"Inside Datadog’s $5M outage" - Read more »
"Migrating from Supabase" - Read more »
"Learning from incidents is not the goal" - L - Read more »
💡 THREAD OF THE WEEK
😂 MEMES OF THE WEEK
Hand-picked DevOps opportunities to work from home, remotely, freelance, full-time, part-time, contract and internships - See more »
I hope you enjoy this week’s newsletter! Share it with a friend or colleague if you find it helpful, drop me an email or send me a DM on Twitter about topics you’d like to hear about in future editions.
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