Kubernetes

Kubernetes Local Storage: PVs, Nodes, and the WaitForFirstConsumer Trap

Why your pod is stuck in Pending, why it lands on the wrong node, and how WaitForFirstConsumer fixes local storage scheduling for good.

SWE Intern (Linux Foundation Mentorship)

Deploying CERNBox's federation stack on Kubernetes

A build log: running CERN's file sync-and-share middleware on Kubernetes, two independent instances federating over OCM, and proof that the shared file never leaves its origin.

Grafana Showed My Node Was Out of Memory. It Wasn't.

Two Grafana dashboards, same node, same timestamp - one shows 62 GB used, other shows 10 GB. Both are correct. Here's the full story of how Linux memory actually works and which number you should actually be watching.

Technical Writer (GeeksforGeeks)

Deploying Grafana OnCall in an Air-Gapped Kubernetes Cluster

A step-by-step guide to running Grafana OnCall without any egress to grafana.com — using OCI artifacts, init containers, and Kubernetes secrets to deliver plugins in restricted environments.

Open-source Contributor (CNCF)

Kubernetes Statefulsets

In simplest terms StatefulSets are Kubernetes component that is used specifically for stateful applications. These are workload API object used to manage stateful applications. They manage the deployment and scaling of a set of Pods (Creating more replicas or deleting them), and StatefulSets are also responsible for the ordering and uniqueness of these Pods. StatefulSet was released in the Kubernetes 1.9 release, let see K8s Statefulsets in this article...