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Dominik Jaro

DevOps | Cloud Engineer | London, Uk

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Archives

2026 2
2025 13
2024 5
2019 1

Categories

Infrastructure as Code Kubernetes Monitoring Performance CI/CD Cloudflare Data Engineering Scripting Security Test

Tags

GCP Terraform Automation PubSub Helm Kubernetes Autoscaling Cloud Build Docker Microservices
Featured image of post Beyond the kubectl Command: How I Passed the CKA πŸŽ“
Kubernetes

Beyond the kubectl Command: How I Passed the CKA πŸŽ“

Using Kubernetes and passing the CKA exam are two completely different things. Here's what I learned after weeks of study and finally passing one of the hardest exams I've ever taken.

Apr 17, 2026
3 minute read
Featured image of post Optimizing a KEDA-Driven Microservices πŸš€: Balancing Performance and Cost via Smart Helm Templates
Performance

Optimizing a KEDA-Driven Microservices πŸš€: Balancing Performance and Cost via Smart Helm Templates

How load testing counter-intuitively proved that giving Kubernetes pods more CPU resulted in using fewer replicas, and how we implemented environment-specific sizing using advanced Helm templating.

Jan 22, 2026
5 minute read
Featured image of post ⚑️ Automating Terraform Docs: The Atlantis Way
Infrastructure as Code

⚑️ Automating Terraform Docs: The Atlantis Way

How we replaced external CI automation with native Atlantis workflows for faster, more robust documentation generation using custom Docker images

Oct 24, 2025
5 minute read
Featured image of post Optimizing a K8s Microservice on GCP: A Deep Dive into Pub/Sub Performance πŸš€
Performance

Optimizing a K8s Microservice on GCP: A Deep Dive into Pub/Sub Performance πŸš€

Recently, I tackled a significant challenge at work: optimizing the performance of a Kubernetes microservice running on Google Cloud Platform (GCP).

Sep 19, 2025
4 minute read
Featured image of post πŸš€ Automating Infrastructure with Cloud Build & Atlantis (sync_dev_after_prod)
CI/CD

πŸš€ Automating Infrastructure with Cloud Build & Atlantis (sync_dev_after_prod)

To automate a key workflowβ€”syncing our master branch configuration to our dev-* environmentsβ€”I created a robust Google Cloud Build pipeline.

Sep 04, 2025
16 minute read
Featured image of post πŸ“Š Building a GKE Monitoring Dashboard for a KEDA Workload
Monitoring Infrastructure as Code

πŸ“Š Building a GKE Monitoring Dashboard for a KEDA Workload

Running event-driven microservices on GKE using KEDA is fantastic for cost efficiency and scalability.

Sep 02, 2025
3 minute read
Featured image of post πŸš€ Automating Git Rebasing with Google Cloud Build
CI/CD

πŸš€ Automating Git Rebasing with Google Cloud Build

The goal was simple: for every open pull request, automatically rebase its feature branch onto `master` and force-push the result.

Sep 01, 2025
3 minute read
Featured image of post Optimizing your Microservices with πŸš€ Google Cloud Profiler
Monitoring

Optimizing your Microservices with πŸš€ Google Cloud Profiler

When you have K8s microservices, you want them to be fast, efficient, and cost-effective. But how do you know exactly where your code is spending its time or consuming resources? That's where a profiler comes in.

Jul 11, 2025
4 minute read
Featured image of post πŸš€ Automating Terraform Docs with Cloud Build
Infrastructure as Code

πŸš€ Automating Terraform Docs with Cloud Build

How I automated terraform-docs for our platform infrastructure repo using GCP Cloud Build and Docker

Jun 16, 2025
5 minute read
Featured image of post πŸ—‚οΈ Organising Terraform Code – module structure
Infrastructure as Code

πŸ—‚οΈ Organising Terraform Code – module structure

In this post, I’ll document how I approached organizing Terraform code for managing Auth0 tenants independently of the broader platform infrastructure.

Jun 01, 2025
2 minute read
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