Practical articles on AI, DevOps, Cloud, Linux, and infrastructure engineering.
Evicted pods are the kubelet telling you a node ran out of something. Here's how to read the signal, stop the bleeding, and keep it from happening again.
How pods can talk to AWS, GCP, and Azure with no static keys — using audience-bound projected ServiceAccount tokens and the cluster OIDC issuer.
A pod dies, restarts, dies again, and the events say OOMKilled. Here is what exit code 137 actually means and how to stop the loop for good.
A Pending pod means the scheduler couldn't place it or the node couldn't start it. Here's how to read the events and clear the eight causes we hit most.
CrashLoopBackOff means your container keeps dying on startup and Kubernetes keeps restarting it slower each time. Here's the diagnosis flow we actually use.
Your pod is stuck because the node can't pull the image. Here's how to read the events, find the real reason, and fix each one fast.
We ran secrets three different ways across AWS, GCP, and Vault. External Secrets Operator gave us one Kubernetes-native workflow. Here's the setup and the gotchas.
We moved 40 services off the nginx Ingress controller onto Gateway API without a single dropped connection. Here's the routing overlap trick that made it boring.
Our overlay tree grew to seven environments and started copy-pasting the same patch into each. Here's the component-based layout that stopped the drift.
Static service tokens leaked into logs and never rotated. SPIFFE identities plus SPIRE-issued SVIDs gave us short-lived certs and killed the shared-secret sprawl.
After running both in production across a dozen clusters, here's where Flux and Argo CD actually differ and which one we'd reach for now.
A bad deploy used to mean a pager at 2am and a manual rollback. Now Argo Rollouts watches the error rate and aborts the canary itself before anyone wakes up.
