Tasdik Rahman

Home Lab, Humble Beginnings

Wed, 29 Apr 2026 00:00:00 +0000

A walkthrough of my home server setup — hardware, NixOS, services like Actual Budget and Kanidm, and the trade-offs I made along the way.

KubeCon EU 2026 - Amsterdam

Tue, 21 Apr 2026 00:00:00 +0000

Notes from KubeCon EU 2026 in Amsterdam, covering talks on cluster migrations, CAPI, OpenTelemetry, Prometheus 3.0, and more.

My AI usage over the last few years

Fri, 17 Apr 2026 00:00:00 +0000

A personal changelog of how my AI tooling and workflows have evolved, from chat interfaces to Claude Code and agentic programming

A few notes on Karpenter after running it for a couple of years

Thu, 19 Mar 2026 00:00:00 +0000

A couple of tidbits and thoughts on Karpenter after having used it for the last couple of years

Infrastructure Management at Scale with Cluster API, MachineDeployments and MachinePools

Fri, 20 Feb 2026 00:00:00 +0000

From Terraform to Cluster API: managing Kubernetes infrastructure at scale across cloud providers

Migrating this blog from Jekyll to Hugo

Thu, 19 Feb 2026 00:00:00 +0000

Notes on moving tasdikrahman.com from Jekyll to Hugo

KubeCon EU 2025, My experiences attending and speaking at it

Thu, 31 Jul 2025 00:00:00 +0000

Reflections on attending and speaking at KubeCon EU 2025

ContainerDays 2024, Hamburg

Sat, 21 Sep 2024 00:00:00 +0000

ContainerDays 2024, Hamburg

Oncall in product teams

Wed, 25 Oct 2023 00:00:00 +0000

Oncall in product teams

Keyboard setups over time

Wed, 27 Sep 2023 00:00:00 +0000

Keyboard setups over time

Renewing your root CA with a new root CA such that the older certs signed by old root CA are still valid

Thu, 18 May 2023 00:00:00 +0000

Renewing your root CA with a new root CA such that the older certs signed by old root CA are still valid

neovim setup for golang 6 months in

Sat, 29 Apr 2023 00:00:00 +0000

neovim setup for golang 6 months in

My vim setup for golang

Fri, 28 Oct 2022 00:00:00 +0000

My vim setup for golang

Working remotely in a geographically distributed team without burning yourself out

Sat, 08 Oct 2022 00:00:00 +0000

Working remotely in a geographically distributed team without burning yourself out

Scaling cluster upgrades for kubernetes

Mon, 26 Sep 2022 00:00:00 +0000

Scaling cluster upgrades for kubernetes

Musings with client-go of k8s

Thu, 22 Sep 2022 00:00:00 +0000

Musings with client-go of k8s

Moving over to www.tasdikrahman.com from tasdikrahman.me

Sat, 17 Sep 2022 00:00:00 +0000

Moving over to www.tasdikrahman.com from tasdikrahman.me

Stubbing and few other testing tidbits for python

Fri, 15 Apr 2022 00:00:00 +0000

Stubbing and few other testing tidbits for python

spf13/cobra not respecting mandatory flags as part of Prerun

Mon, 28 Feb 2022 00:00:00 +0000

spf13/cobra not respecting mandatory flags as part of Prerun

Evolution of support for infrastructure teams

Mon, 21 Feb 2022 00:00:00 +0000

Evolution of support for infrastructure teams

Building the VM creation API for the org

Sun, 20 Jun 2021 00:00:00 +0000

Building the VM creation API for the org

Handling language stack deprecations: Part 2: Container infrastructure

Tue, 15 Jun 2021 00:00:00 +0000

Handling language stack deprecations: Part 2: Container infrastructure

Revamping Vesemir: our virtual machine deployment service

Sat, 12 Jun 2021 00:00:00 +0000

Revamping Vesemir: our virtual machine deployment service

Vesemir: Our virtual machine deployment service

Thu, 10 Jun 2021 00:00:00 +0000

Vesemir: Our virtual machine deployment service

Bug which would cause some deployments to get triggered again and again

Sun, 06 Jun 2021 00:00:00 +0000

Bug which would cause some deployments to get triggered again and again

Handling language stack deprecations: Part 1: Virtual Machine infrastructure

Tue, 02 Feb 2021 00:00:00 +0000

Handling language stack deprecations: Part 1: Virtual Machine infrastructure

Maintaing aptly - The debian package manager

Wed, 23 Dec 2020 00:00:00 +0000

Maintaing aptly - The debian package manager

What to avoid while doing PR reviews

Mon, 14 Dec 2020 00:00:00 +0000

What to avoid while doing PR reviews

To self host or to not self host kubernetes cluster(s)

Fri, 27 Nov 2020 00:00:00 +0000

To self host or to not self host kubernetes cluster(s)

Choosing between one big cluster or multiple smaller kubernetes clusters

Sat, 21 Nov 2020 00:00:00 +0000

Choosing between one big cluster or multiple smaller kubernetes clusters

Testing rake tasks with rspec

Tue, 20 Oct 2020 00:00:00 +0000

Testing rake tasks with rspec

A few things about database migrations

Sun, 18 Oct 2020 00:00:00 +0000

A few things about database migrations

The making of bhola - your cert expiration overseer - Part 1

Thu, 08 Oct 2020 00:00:00 +0000

The making of bhola - your cert expiration overseer - Part 1

Why I chose to do TDD for my new side project

Wed, 07 Oct 2020 00:00:00 +0000

Why I chose to do TDD for my new side project

Backpacking trip to Alleppey and Kochi

Mon, 31 Aug 2020 00:00:00 +0000

Backpacking trip to Alleppey and Kochi

A few notes on GKE kubernetes upgrades

Wed, 22 Jul 2020 00:00:00 +0000

A few notes on GKE kubernetes upgrades

Structured logging in Rails

Tue, 07 Jul 2020 00:00:00 +0000

Structured logging in Rails

Our learnings from Istio’s networking APIs while running it in production

Wed, 17 Jun 2020 00:00:00 +0000

How we run Istio 1.4 in Gojek and everything that goes behind the scenes.

AddTrust Root expiration fix

Sun, 31 May 2020 00:00:00 +0000

If you are affected by the Sectigo root cert

Specifying scheduling rules for your pods on kubernetes

Wed, 06 May 2020 00:00:00 +0000

Learnings on scheduling rules native to the default k8s scheduler

A Few Notes on Etcd Maintenance

Fri, 24 Apr 2020 00:00:00 +0000

Learnings on provisioning, compaction, defragmentation, and more

Introducing Kingsly — The Cert Manager

Wed, 22 Apr 2020 00:00:00 +0000

How an internal hackathon project led to the creation of GOJEK’s open-source certificate management tool

Route missing in kubernetes node with kuberouter as the CNI

Sun, 05 Jan 2020 00:00:00 +0000

Route missing in kubernetes node with kuberouter as the CNI

Various ways of enabling canary deployments in kubernetes

Thu, 12 Sep 2019 00:00:00 +0000

Various ways of enabling canary deployments in kubernetes

Handling signals for applications running in kubernetes

Wed, 24 Apr 2019 00:00:00 +0000

Handling signals for applications running in kubernetes

Container Image Structuring for container runtimes

Wed, 10 Apr 2019 00:00:00 +0000

Container Image Structuring for container runtimes

Self hosting kubernetes

Thu, 04 Apr 2019 00:00:00 +0000

Self hosting kubernetes

Solo Backpacking trip to Hampi, Gokarna and Goa

Fri, 22 Mar 2019 00:00:00 +0000

Solo Backpacking trip to Hampi, Gokarna and Goa

Object Comparison

Thu, 21 Mar 2019 00:00:00 +0000

Object Comparison

F.I.R.S.T principles of testing

Wed, 13 Mar 2019 00:00:00 +0000

F.I.R.S.T principles of testing

What should and should not be tested in unit tests?

Wed, 13 Mar 2019 00:00:00 +0000

What should and should not be tested in unit tests?

Test-driven development as a school of thought

Fri, 08 Feb 2019 00:00:00 +0000

Test-driven development as a school of thought

Moving Canary deployments on AWS using ELB to kubernetes using Traefik

Thu, 25 Oct 2018 00:00:00 +0000

Moving Canary deployments on AWS using ELB to kubernetes using Traefik

Monoliths are just fine

Wed, 24 Oct 2018 00:00:00 +0000

Monoliths are just fine

Pillars of Observability

Mon, 01 Oct 2018 00:00:00 +0000

Pillars of Observability

Trip to Taiwan, 2017

Sat, 07 Oct 2017 00:00:00 +0000

Trip to Taiwan, 2017

GSoC 2017 with oVirt - Ending Notes

Sun, 03 Sep 2017 00:00:00 +0000

GSoC 2017 with oVirt - Ending Notes

Second Phase - GSoC, work on 3 VM setup of oVirt installation

Sun, 30 Jul 2017 00:00:00 +0000

Second Phase - GSoC, work on 3 VM setup of oVirt installation

Week 3 and 4, GSoC 2017 - dozens of cloud vm's, ansibling, finding bugs, testing

Wed, 28 Jun 2017 00:00:00 +0000

Week 3 and 4, GSoC 2017 - dozens of cloud vm's, ansibling, finding bugs, testing

Week 1 and 2, GSoC 2017 - Travel, Code, Good food

Tue, 13 Jun 2017 00:00:00 +0000

Week 1 and 2, GSoC 2017 - Travel, Code, Good food

PyCon Taiwan 2017, Taipei

Mon, 12 Jun 2017 00:00:00 +0000

PyCon Taiwan 2017, Taipei

Implementing Role Based Access Control

Thu, 01 Jun 2017 00:00:00 +0000

Implementing Role Based Access Control

Learnings from analyzing my compromised server (Linode)

Thu, 25 May 2017 00:00:00 +0000

Learnings from analyzing my compromised server (Linode)

Using Ansible Playbooks to Install oVirt 4.1 on centOS 7 (Linode)

Wed, 24 May 2017 00:00:00 +0000

Using Ansible Playbooks to Install oVirt 4.1 on centOS 7 (Linode)

Installing oVirt 4.1 on centOS 7 (DigitalOcean)

Sun, 21 May 2017 00:00:00 +0000

Installing oVirt 4.1 on centOS 7 (DigitalOcean)

Community bonding period, GSoC 2017 with oVirt org

Sat, 20 May 2017 00:00:00 +0000

Community bonding period, GSoC 2017 with oVirt org

Making of Trumporate: Building markovipy - Part 1

Sat, 06 May 2017 00:00:00 +0000

Making of Trumporate: Building markovipy - Part 1

Hello oVirt, GSoC 2017

Thu, 04 May 2017 00:00:00 +0000

Hello oVirt, GSoC 2017

Testing your ansible roles using travis-CI

Thu, 06 Apr 2017 00:00:00 +0000

Testing your ansible roles using travis CI

Organising tasks in roles using Ansible

Sun, 19 Mar 2017 00:00:00 +0000

Organising tasks in roles using Ansible

Introduction to Configuration Management using Ansible

Tue, 28 Feb 2017 00:00:00 +0000

Introduction to Configuration Management using Ansible

More than 18 stops, a little less than 1800kms, Backpacking Trip To Himachal Pradesh

Thu, 22 Dec 2016 00:00:00 +0000

More than 18 stops, a little less than 1800kms, Backpacking Trip To Himachal Pradesh

Demystifying how imports work in python, ChennaiPy

Mon, 24 Oct 2016 00:00:00 +0000

Demystifying how imports work in python, ChennaiPy October meetup

Pycon India 2016, New Delhi

Wed, 19 Oct 2016 00:00:00 +0000

PyCon India 2016, New Delhi

My internship experience at Wingify (VWO team), New Delhi

Sat, 13 Aug 2016 00:00:00 +0000

My internship experience at Wingify (VWO team), New Delhi

Decorators 101 - A gentle introduction

Thu, 21 Jul 2016 00:00:00 +0000

A gentle introduction to decorators in python

Margo: An opiniated Slack Bot for SRMSE's Slack channel

Sat, 25 Jun 2016 00:00:00 +0000

Margo: Slack bot to tell whether a site is up or not

Simple lessons learned while building things - My open source journey so far

Sun, 24 Apr 2016 00:00:00 +0000

Lessons learnt while builging things

Extraction of text from image using tesseract-ocr engine

Mon, 04 Apr 2016 00:00:00 +0000

Extraction of text from image using tesseract

Trying out Oculus Rift: Development kit 2

Sun, 13 Mar 2016 00:00:00 +0000

Trying out Oculus Rift

Making of space Shooter using pygame

Tue, 02 Feb 2016 00:00:00 +0000

Making of space Shooter

Say Hi to peewee

Fri, 29 Jan 2016 00:00:00 +0000

Peewee: A simple ORM software

Getting started with Pygame

Sun, 17 Jan 2016 00:00:00 +0000

Pygame Introduction

Unicode strings in python, a gentle intro

Tue, 08 Dec 2015 00:00:00 +0000

Working with unicode

Submitting python package to pypi

Tue, 10 Nov 2015 00:00:00 +0000

Submitting python package to pypi

Converting python script into an executable

Sat, 07 Nov 2015 00:00:00 +0000

Converting python script into an executable

Creating a gif of the current window

Sat, 07 Nov 2015 00:00:00 +0000

creating a screen cast

How hard can building a Calculator be right?

Fri, 06 Nov 2015 00:00:00 +0000

How hard can building a Calculator be right?

Setting up DBPedia Spotlight on your local server

Sat, 24 Oct 2015 00:00:00 +0000

DBPedia Spotlight on your local server

Running CGI Scripts with CGIHTTPServer

Tue, 20 Oct 2015 00:00:00 +0000

CGI Scripts with pythons built in server

Running CGI Scripts on Apache2

Wed, 30 Sep 2015 00:00:00 +0000

CGI Scripts on Apache2

My Ramblings with Oracle-11g

Sun, 27 Sep 2015 00:00:00 +0000

Oracle 11g - My Experience

Install and Configure Oracle-11g on Ubuntu-14.10

Sat, 26 Sep 2015 00:00:00 +0000

Oracle 11g install

Workaround for deleting Columns in SQLite

Fri, 18 Sep 2015 00:00:00 +0000

inserting and deleting Columns in SQLite

Install Hadoop(Multi Node)

Sun, 13 Sep 2015 00:00:00 +0000

Install Hadoop Multi Node 1.0.3 on Ubuntu 14.04.2

Install Hadoop(Single node)

Thu, 10 Sep 2015 00:00:00 +0000

Install Hadoop Single node 1.0.3 on Ubuntu 14.04.2

ROS Jade : Configuration

Fri, 28 Aug 2015 00:00:00 +0000

Configuring ROS - Jade on Ubuntu 14.10

ROS Jade : Installation

Fri, 28 Aug 2015 00:00:00 +0000

Install ROS - Jade on Ubuntu 14.10

Apache2 : Virtual Hosts

Fri, 21 Aug 2015 00:00:00 +0000

Setting up website on localhost using LAMP stack

About Me

Mon, 01 Jan 0001 00:00:00 +0000

This site is a partial collection of projects I’ve worked on, stories I’ve written down and software I’ve published.

A generalist developer, with a focus on the infrastructure side of things.

I enjoy bouldering, dancing Salsa, reading books and heading over to Union FC’s football matches regularly. Backpacking is something which I am very fond.

A list of public talks given by me, can be found here.

Presently

Senior Software Engineer @ New Relic’s Kubernetes-based compute infrastructure team.

Formerly

Working as part of Logistics, system engineering team @ Deliveryhero
Enabling scale as part of the Engineering Platform team @ Gojek, providing infrastructure as a PaaS, to the developers of the 20+ product groups inside the org. I occasionally write about what we are working on over at the engineering blog.
Engineer #4 in the Cloud Infrastructure team @ Razorpay of YCombinator Winter 2015 Batch.
Contributor to oVirt under the Redhat umbrella. You can know more about my contributions here.
Engineering Intern (S17) @ Cisco as part of their Security Business group helping make scalable security products.
Engineering Intern (S16) with the backend team @ Wingify, helped build visual website optimizer, the world’s easiest A/B testing tool. You can read about my work here.

I am always a tweet away if you have something interesting in mind.

Projects

Mon, 01 Jan 0001 00:00:00 +0000

Projects by Tasdik Rahman

Resume

Mon, 01 Jan 0001 00:00:00 +0000

Resume - Tasdik Rahman

Speaking

Mon, 01 Jan 0001 00:00:00 +0000

Talks and presentations by Tasdik Rahman