Terraform's lookup Function: The Map Access Patterns That Actually Matter in Production
The lookup function in Terraform is one of those tools that seems trivial until you’re staring at an error at 11pm and...
Latest Publications
A Comprehensive Guide to AWS VPCs
If you’re new to cloud computing and want to understand how Amazon Web Services Virtual Private Cloud (AWS VPC) works, this post...
IoT Platforms Comparison: AWS, Azure, Google, IBM, Cisco
Choosing an IoT platform is one of those decisions that sounds straightforward until you actually start comparing options. There is a lot...
DevOps Engineer or Software Engineer? Which one is the best?
So you’re trying to decide between DevOps and Software Engineering. I get it—these roles blur together more than most job postings let...
AWS Internet Gateway: Everything You Need to Know
AWS Internet gateways handle communication between your public subnets and the internet. If a resource in your public subnet has a public...
AWS API Gateway with Nginx and WAF
I ran into an interesting architecture problem recently. We had multiple Web Applications running on EC2 instances behind AWS API Gateway, and...
Fixing "Class Not Found" Errors in Android: From ADT to Modern Android Studio
The error message Could not find class 'com.xxxnx.adt.Find$PlaceUnitListener', referenced from method com.xxxnx.adt.Find.<init> is one of those Android development gotchas that can eat...
2 Solutions for Unexpected token "u" in JSON at position 0
JavaScript is one of the three core technologies of the web, alongside HTML and CSS. It lets you add animation, react to...
AWS NAT Gateway – Your Definitive Guide
If you’re working with AWS at all, you’ll eventually run into NAT Gateway. It’s one of those fundamental pieces that shows up...
How to use Terraform Null Resource – Examples!
If you’ve worked with Terraform for a while, you’ve probably hit situations where you need to run something that doesn’t fit neatly...
AWS STS – Complete Guide
AWS STS is the Security Token Service - an API that gives you temporary access to your AWS resources. Think of it...
GitLab Roles – How to define Permissions
If you’re working with GitLab, you’ve probably noticed that managing who can do what gets complicated fast. This post walks through the...