devDosvid blog

Late December, two days before Christmas break.

A continuation of Flip the Axis: A Layer-Based Approach to Multi-Service Migrations.

Five minutes after the all-hands, someone asks me in the hallway, “What did he mean by that?”

TL;DR When you’re migrating many services through the same steps, parallelize by step, not by service.

A while back, I spent a few weeks designing the new access control system for our infrastructure.

As senior engineers, we often hit the ceiling at some point: our individual output is high, but writing more code or spinning up one more cluster does not feel like the best way to make more impact.

Legacy architectural decisions often carry hidden costs.

In this blog post, I’m excited to share some valuable system design insights drawn from AWS’s post-event summaries on major outages.

Many teams employ Terraform by HashiCorp to efficiently manage their infrastructure, leveraging its ability to automate the lifecycle of complex environments.

With a solid foundation in AWS API Gateway and Lambda for serverless architecture, my recent deep dive into these cloud computing services felt like uncovering new layers in familiar territory.

Updated in April 2026: Added the moved block migration path (Terraform 1.9+), corrected the deprecation status of null_resource, and added notes about OpenTofu compatibility and Terraform 1.14 action blocks.

EC2 AMI catalog consists of more than 160k public AMIs — a mix of shared AMIs created by users, published by vendors, and provided by AWS.

Many of us know and use Packer to build golden images for cloud providers.

In this blog, I would like to tell you about new cool features that Terraform 1.1 and 1.2 bring.

Here I want to share two Apple Shortcuts that I created for myself and use to process images for this blog: Image Optimization and Image Resize About a year ago, I posted the blog about the Automator quick action “Using TinyPNG Image Compression From MacOS

Terraform built-in functionality is very feature-rich: functions, expressions, and meta-arguments provide many ways to shape the code and fit it to a particular use case.

Terraform by itself automates a lot of things: it creates, changes, and versions your cloud resources.

In November 2021, AWS announced Response Headers Policies — native support of response headers in CloudFront.

It’s been almost a year since I started using macOS EC2 instances on AWS: there were ups and downs in service offerings and a lot of discoveries with macOS AMI build automation.

With a multi-account approach of building the infrastructure, there is always a challenge of provision and governance of the resources to subordinate accounts within the Organization.