@tymik

Terraform State: Why I had to break up with my monolith (and how you can do it too!)

Jul 1, 2025 · 7 min read · Let’s talk about something every DevOps engineer eventually faces - the moment you realize your Terraform state file has become a monster.You know, that creeping feeling when terraform plan takes longer than your coffee to brew, and running terraform...

Account Name and Account Alias in AWS are not the same thing!

Mar 10, 2025 · 4 min read · Did you know that? I was surprised when I found out… I was about to implement an Organization wide solution with AWS Control Tower Account Factory for Terraform (AFT) that, in my case, is using Account Name for further resources creation.As I don’t r...

AWS EKS - Error: You must be logged in to the server (the server has asked for the client to provide credentials)

Dec 30, 2024 · 3 min read · Today I was working on a PoC to try out the new Amazon EKS Auto Mode feature announced on re:Invent 2024.I wanted to make a very quick PoC, so I took the least effort approach to set up my cluster. When I wanted to start deploying the app proposed by...

Is it possible to use a custom certificate issued by a private certificate authority with custom origin behind CloudFront?

Oct 2, 2024 · 2 min read · One day an engineer in my team came up with this question. There was no quick answer available, so I started digging and here's what I found. CloudFront's docs on CNAMEs and HTTPS requirements say: CloudFront supports all types of certificates issue...

InvalidParameterValue: DBName must begin with a letter and contain only alphanumeric characters

May 23, 2024 · 3 min read · ❗ TL;DR: Don't use hyphen (-) for DBName. And if you want to understand the reasons behind that, keep reading further. You are creating an RDS instance with Terraform. You have coded the instance, executed terraform plan and all looks great! That's...