12 articles tagged with "kubernetes"
Liveness, readiness, and startup probes are the unsung heroes of Kubernetes reliability — and also the source of some truly spectacular 3 AM incidents. Here's how to stop your cluster from killing healthy pods and serving traffic to broken ones.
Ever had a Kubernetes node go dark because one rogue pod decided it deserved ALL the memory? Resource requests and limits are the seatbelts of K8s — boring until they save your life. Here's how to actually set them correctly.
I once deployed a Node.js app with no resource limits to a shared cluster. It leaked memory overnight and took down 12 other services by 9 AM. Here's what I learned so you don't repeat my Monday morning.
Spent a whole Sunday debugging why 30% of user requests returned 502 errors — turns out our pods were 'Running' but completely brain-dead. Kubernetes health probes would have caught it in seconds. Here's everything I wish I'd known.
Your pod says it's Running. Your users say the app is down. Kubernetes probes are the lie detector your cluster desperately needs — here's how to wire them up correctly.
Skipping resource limits in Kubernetes is like driving without a seatbelt — fine until it isn't. I learned this the hard way when one rogue pod starved the entire cluster at 2 AM. Here's what I wish I knew sooner.
Your pod keeps dying with OOMKilled and you have no idea why? After getting paged at 3 AM more times than I care to admit, I learned that Kubernetes resource limits aren't optional — they're the difference between a stable cluster and a cascading meltdown.
I used to maintain 47 nearly-identical Kubernetes YAML files across dev, staging, and prod. One typo in the wrong file caused a 4-hour outage. Then I discovered Helm — and my Kubernetes configs finally became manageable.
Your Kubernetes pod crashed but it's still getting requests? After watching production apps silently die while Kubernetes kept routing traffic to them, I finally understood liveness and readiness probes - and you need them too.
Your pods are vanishing into thin air, your logs say OOMKilled, and your on-call rotation is a nightmare. Let's fix that — with resource limits you'll actually understand.
Your cluster is running slow, nodes are OOMKilled at 3am, and nobody knows why. Spoiler: it's your pods with no resource limits set. Here's how to fix it before your on-call rotation turns into a nightmare.
Skipped setting resource requests and limits? Your cluster is a ticking time bomb. After watching production nodes get OOM-killed at 3am, I learned the hard way - here's how to set sane limits before your pods eat each other alive.