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Database Backups — Testing Restores, Not Just Taking Them

Backups are easy. Restores are hard. The quarterly drill we run, what's failed during it, and the discipline that makes "we have backups" actually mean something.

Infrastructure Database Backups Disaster Recovery

A

AdminDevOps Engineer

|May 14, 2026

Database Backups — Testing Restores, Not Just Taking Them

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Terraform185 Monitoring171 AWS143 Kubernetes96 CI/CD83 LLM83 Python81 Linux73 GPT70 Ansible65

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AWS Cost Optimization: 10 Strategies to Reduce Your Cloud Bill

••February 5, 2024

AWS Cost Optimization: 10 Strategies to Reduce Your Cloud Bill

Discover proven strategies to reduce AWS costs by up to 50%. Learn about Reserved Instances, Spot Instances, right-sizing, and automated cost management.

Kiril Urbonas·4 min read

Building Production-Ready AI Applications with LangChain and Docker

••February 3, 2024

Building Production-Ready AI Applications with LangChain and Docker

We deploy LangChain apps in Docker on Kubernetes. The patterns that work, the LangChain-specific gotchas, and what we'd build differently next time.

Kiril Urbonas·8 min read

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Practical Guide: Linux Performance Baseline Methodology

••February 1, 2024

Practical Guide: Linux Performance Baseline Methodology

When everything seems "slow," a baseline gives you something to measure against. The capture-and-compare workflow we use on every Linux host.

Kiril Urbonas·7 min read

Kubernetes Autoscaling: HPA vs VPA vs Cluster Autoscaler

••February 1, 2024

Kubernetes Autoscaling: HPA vs VPA vs Cluster Autoscaler

HPA, VPA, and Cluster Autoscaler / Karpenter solve overlapping problems badly when you don't understand which one owns what. The mental model that keeps them from fighting.

Kiril Urbonas·7 min read

Orchestrating AI Agents on Kubernetes

••January 15, 2024

Orchestrating AI Agents on Kubernetes

We run a fleet of LLM agents on Kubernetes. They're stateful, bursty, and expensive — none of which K8s defaults are good at. Here's what we changed.

Kiril Urbonas·8 min read

eBPF: The Future of Kernel Observability

••January 10, 2024

eBPF: The Future of Kernel Observability

We replaced three kernel-level monitoring tools with a small set of eBPF programs. What it bought us, what it cost, and where we still use the old stuff.

Kiril Urbonas·8 min read

Zero Trust Architecture in Multi-Cloud

••January 8, 2024

Zero Trust Architecture in Multi-Cloud

We removed the corporate VPN, set up workload identity everywhere, and made every service prove who it is on every call. The actual implementation, with what worked and what we abandoned.

Kiril Urbonas·9 min read

Terraform State Management Strategies

••January 5, 2024

Terraform State Management Strategies

How we organize Terraform state across 12 AWS accounts and 40+ services. Backends, locking, partitioning, and the migration we got wrong twice.

Kiril Urbonas·9 min read

Building Scalable CI/CD Pipelines with GitHub Actions

••January 3, 2024

Building Scalable CI/CD Pipelines with GitHub Actions

We run ~600 GitHub Actions workflow runs per day across 80 repos. The patterns that scale and the ones that hit limits we didn't expect.

Kiril Urbonas·7 min read

Fine-tuning Llama 3 on Consumer Hardware

••January 1, 2024

Fine-tuning Llama 3 on Consumer Hardware

I fine-tuned Llama 3 8B on a single 4090 over a weekend for a side project. Here's what worked, what cost more than expected, and what I'd do differently.

Kiril Urbonas·7 min read

AWS Cost Optimization Strategies

••December 28, 2023

AWS Cost Optimization Strategies

A different angle on AWS cost work: the operational discipline that prevents costs from creeping back up after the initial cleanup.

Kiril Urbonas·8 min read

Advanced Bash Scripting Techniques

••December 25, 2023

Advanced Bash Scripting Techniques

Bash patterns beyond the basics: arrays, traps, process substitution, parameter expansion. The features that earn their place when scripts grow.

Kiril Urbonas·8 min read

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