◆ Developer Relations · Kubernetes · DevOps

OpentoDevRel · DevOpsrolesglobal or remote

I help engineers ship Kubernetes in production — and tell the story on stage.

DevOps engineer, international conference speaker, and community builder. I write deep technical content, organize PyCon India, and speak to Kubernetes practitioners in 10+ countries.

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Certified —KCNACKACKAD

Koti Vellanki · India

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Day 0 — Spin Up a Real Kubernetes Cluster in One Command

// Kubernetes · Deep dive · Setup

Day 0 — Spin Up a Real Kubernetes Cluster in One Command

Before you debug a single Pending pod, you need a real cluster. Here is how to get one on AWS, GCP, or Azure with a single command — and the Terraform that makes it boring.

8 min readSetup

CrashLoopBackOff in Kubernetes: Read the Exit Code First

// Kubernetes · App

CrashLoopBackOff in Kubernetes: Read the Exit Code First

A status, a timer, and an exit code. Learn to read all three and you debug in sixty seconds instead of forty minutes.

It Is Always DNS: Debugging CoreDNS Failures in Kubernetes

// Kubernetes · Network

It Is Always DNS: Debugging CoreDNS Failures in Kubernetes

The pod is healthy, the Service is up, nslookup hangs. The five-hop debug.

4 min readNetwork

◆ Explore by domain

The 35-part Kubernetes series

32 / 35 publishedview all →

RunContainerError in Kubernetes: Why Your Pod Never Starts

CrashLoopBackOff in Kubernetes: Read the Exit Code First

ErrImagePull in Kubernetes: Typo, Auth, or Network?

ImagePullBackOff in Kubernetes: The Timer on Top of the Error

Kubernetes Pod Running But Not Ready: Readiness Probe Failures Explained

Liveness Probe Killing Your Kubernetes Pods? Read This First

Liveness and Readiness Failing Together: Why Startup Probes Exist

Why Is Your Kubernetes Pod Stuck in Pending? The Real Fix

Pod Affinity Violation in Kubernetes: The Silent Pending Trap

Node Affinity in Kubernetes: The Hostname Typo That Pending'd My Pod

Taints and Tolerations in Kubernetes: Why Your Pod Won't Land on Any Node

Cluster Autoscaler Not Scaling Up? The 4 Signals to Check First

Kubernetes Resource Limits Must Be Greater Than Requests: Here's Why

OOMKilled in Kubernetes: Why the Linux Kernel Murdered Your Pod

CrashLoopBackOff from Tight Memory Limits: The 2-Minute Fix

Kubernetes cgroup OOM: When the Kernel Kills Before kubectl Knows

Kubernetes volumeMount References Undefined Volume: The Typo Fix

The 5 Reasons Your Kubernetes PVC Never Binds

Read-Only Filesystem in Kubernetes: The Volume Permission Fix

◆ Speaking · 10+ countries, 20+ conferencesFull talks archive →

Talk · 2025

PyCon UK

GB

Talk · 2025

PyCon Spain

ES

Talk · 2025

PyCon Hong Kong

HK

// 10+ countries · 20+ conferences

Countries spoken in

◆ Community · meetup leadership

Collabnix

Monthly meetups on AI and Cloud Native — bringing Docker, Kubernetes, and cloud engineers together.

ACTIVE ORGANIZER· 13,000+ MEMBERS

India CodeWeekend

Developer community running regular meetups and technical workshops across India.

ORGANIZER· 10,000+ MEMBERS

Open Source Meetups Bengaluru

Monthly Bengaluru meetups on open-source technologies, tooling, and engineering best practices.

COMMUNITY LEADER· 2,600+ MEMBERS

Kubernetes, step by step

Kubernetes, step by step

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