Tim Costa - Explorations of an Engineer

Explorations of an Engineer

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Tim Costa

Creating an Autoscaling EKS Cluster using AWS Spot Instances

...that also pulls secrets automatically from AWS Parameter Store or Secrets Manager, automatically creates ALBs and registers DNS entries, and last but not least uses IRSA [https://aws.amazon.com/blogs/opensource/introducing-fine-grained-iam-roles-service-accounts/] to grant AWS access to pods. This post is going to use Terraform and Helm, and will

Adding a field to a delegated GraphQL Request

Recently I've been working a lot with GraphQL services and schema stitching, and ran into a problem with delegated queries not returning the data that my code needed unless the user requested it. I found a way to add a transform to the delegateToSchema call to ensure that

Detecting and cropping letterboxing using FFmpeg and Imagemagick

Learning how to detect letterboxing of videos and crop the important content to remove the letterboxing using FFmpeg and Imagemagick.

How we found a TCP hangup regression between AWS ELBs and Node.js

A Node.js security patch for the SlowLoris vulnerability causes many AWS ELBs in their default configuration to throw 504 errors.

Staying Connected While Abroad

One of the largest concerns I've had with my plans to travel for a year is whether or not I will be able to reliably stay connected to work and things that I need to be able to monitor. As part of my job as a Software Engineer,