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Blogs

Git was not built for multiple AI agents. Worktrees fix that.

Srivatsa RV

SRE @One2N

Spandan Ghosh

Content @One2N

Running multiple AI coding agents on the same repo? Git's single-checkout model breaks fast. Learn how git worktrees give each agent its own isolated workspace.

Multi-Tenant SFTP: How We Built a Zero-Ops Setup on AWS Transfer Family

Kshitish Deshpande

Software Engineer @One2N

Spandan Ghosh

Content @One2N

How One2N built a zero-ops multi-tenant SFTP system for a fintech client using AWS Transfer Family: one endpoint, isolated buckets, no manual server ops.

My new laptop broke Slack. That's how I ended up on Bluefin.

Harsh Mishra

SRE @One2N

Spandan Ghosh

Content @One2N

A kernel patch broke Slack on my Dell XPS. Here's how that led me to Bluefin, immutable Linux, bootc, and OCI images and why it solved my problem for good.

Gitops for Kafka in the real world: How we governed 78 clusters without breaking production

Harshwardhan Mehrotra

SRE @One2N

Spandan Ghosh

Content @One2N

This post is about how we, as a lean platform engg team used gitops and jikkou to bring 78 kafka clusters under control, cut ticket based changes from days to minutes, and kept legacy kafka 0.8.2 clusters safe in production.

From Aircraft to Cloud: my experience completing the SRE Bootcamp

Pankaj Goriya

SRE @One2N

Spandan Ghosh

Content @One2N

From fixing aircraft to building cloud systems, this is my journey through One2N’s hands-on SRE Bootcamp. I share how real-world challenges and team culture helped me grow as an engineer, plus some honest advice for anyone thinking about site reliability engineering.

Debugging KubeVPN's DNS resolution failures

Nilesh D

Software Engineer @One2N

Chinmay Naik

CEO @One2N

The other day, I was trying to access the Go documentation at go.dev, but the page wouldn't load. Not on Chrome, not in incognito mode, not even on Safari. The error was simple but frustrating: "Could not resolve hostname".

What happens when you run Terraform commands?

Sahil Joseph

Staff SRE @One2N

Saurabh Hirani

Principal SRE @One2N

Have you ever wondered what happens when you run Terraform commands? In this post, we will explore the following topics to gain a better understanding of Terraform internals: Architecture and provider plugin architecture, Credential management, State locking and Debugging

Daily driving Omarchy and Hyprland as a CTO

Jaideep Khandelwal

CTO @One2N

A hands-on review of Omarchy Linux, an easy-to-install Arch-based Linux distro with Hyprland window manager pre-configured out of the box. Learn what works, what breaks, and who should use it.

DORA Metrics: Useful or Fluff

Jaideep Khandelwal

CTO @One2N

In this post, we shed light on why following DORA metrics without context might cause more harm than good. We also show how leaders can use a practical, strategic approach to connect DORA metrics to meaningful business outcomes.

GitHub runners fundamentals and self-hosted runner setup

Rajesh Jangid

SRE

Spandan Ghosh

Content @One2N

This post is an introduction to Github runners, different ways in which they can be deployed, and a comparison between managed and self hosted runners.

Best practices for upgrading EKS clusters

Aashi Rathore

SRE @One2N

Spandan Ghosh

Content @One2N

Upgrade your Amazon EKS clusters with confidence. Learn best practices to avoid common mistakes, prepare your cluster, and execute a smooth upgrade process for improved performance, security, and cost savings.

How to port-forward from EC2 instances without the need for opening any SSH ports or creating Bastion hosts

Harsh Mishra

SRE @One2N

Learn how to port-forward from EC2 instances in private subnets without opening SSH ports or setting up bastion hosts. This AWS SSM Session Manager guide provides a secure, cost-effective, and simple solution for EC2 access and port forwarding.

Accessing private EC2 Instances without keys or passwords

Adarsh Raj

SRE

Spandan Ghosh

Content @One2N

We explore how to securely access private EC2 instances without SSH keys or passwords using AWS Systems Manager Session Manager, especially in large-scale environments.

Using UTM and Vagrant to spin up dev environments on Apple Silicon Macs

Srivatsa RV

SRE @One2N

Spandan Ghosh

Content @One2N

Learn how to set up a local development environment on M-series Macs using Vagrant and UTM, overcoming VirtualBox limitations and allowing for a seamless virtualization and containerization experience.

Maintaining multiple GitHub accounts on a single machine

Saurabh Hirani

Principal SRE @One2N

Learn how to maintain multiple Git accounts on a single machine efficiently. This guide covers generating SSH keys, configuring SSH and Git settings, and automating the process with scripts. Perfect for developers managing personal and professional repositories

Understanding MLOps from a software engineers' perspective

Harsh Mishra

SRE @One2N

Spandan Ghosh

Content @One2N

Chinmay Naik

CEO @One2N

Jaideep Khandelwal

CTO @One2N

A comprehensive overview of MLOps for software engineers, covering key concepts, challenges, and best practices. Learn about knowledge silos, the MLOps lifecycle, automation, versioning, experiment tracking, and more.

A practical guide for database schema migrations

Spandan Ghosh

Content @One2N

Database schema changes are inevitable in software development. This guide teaches you how to automate schema migrations, reducing deployment headaches and increasing agility.

Achieving CI/CD with previews for your static website hosted on S3

Drasti Kaurav

SRE @One2N

Seamlessly deploy your static website hosted on AWS S3 with preview environments. Learn how to set up an automated build and deployment process, handle CloudFront cache invalidation, and ensure a smooth website rollout.

Automate RDS Secret management using AWS Secret Manager

Siddharth Shashikar

SRE @One2N

Automate secure management of RDS credentials using AWS Secrets Manager. Explore different methods for storing and rotating RDS secrets, and learn how to implement an automated solution with Terraform.

Moving from traditional CD pipelines to GitOps

Jaideep Khandelwal

CTO @One2N

Explore the benefits of moving from traditional Continuous Deployment (CD) pipelines to a GitOps approach, including improved security, monitoring, and configuration management. Learn how one company implemented GitOps using Flux CD.

Terraform: best practices & gotchas

Siddharth Shashikar

SRE @One2N

Find out the best practices and common gotchas when using Terraform for infrastructure as code. Learn about directory structures, module organization, naming conventions, state management, and more to build reliable, scalable, and maintainable cloud infrastructure.

Centralized VPN Solutions for Cloud and On Premise

Sagar Rakshe

SRE

Discover how a centralized VPN solution can address the challenges of shared VPNs and improve security, productivity, and manageability for your organization.

Homogenous Build Setups: Seamless Local & CI Workflows

Sitaram Shelke

SRE

Learn how to create homogenous build setups for both local and CI environments using Makefiles, Bash, and Jenkins. Boost DevOps efficiency and reduce friction.

Iptables, Firewalls, Linux blast from the past!

Jaideep Khandelwal

CTO @One2N

A comprehensive guide to the iptables firewall utility, covering its syntax, tables, chains, targets, and real-world use cases for network address translation and IP resolution.

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