Learn DevOps, Kubernetes & AWS — Simplified
By KP | TZoneLabs | DevOps & Cloud Engineering At 3 AM, our ingress started rejecting every HTTPS request with a certificate error. Every health check we had was green. Every pod was Running. The cluster looked perfectly healthy because none of our monitoring ever asked the one question that mattered: how many days is … Read more
By KP | TZoneLabs | DevOps & Cloud Engineering A PodDisruptionBudget doesn’t protect your application — it protects a number. That’s why a routine EKS managed node group upgrade recently stalled on us for 40 minutes and paged on-call at 2am, even though our minAvailable: 2 config was textbook. The PDB was doing exactly what … Read more
kubectl debug node replaces SSH, bastions, and open ports for Kubernetes node access. Learn the exact commands, security benefits, debugging profiles, and real-world walkthrough.
Kubernetes pod eviction silently killed 60% of our production pods. Learn how QoS classes work, how to find at-risk pods, and how to fix and enforce resource requests permanently.
By KP | TZoneLabs | DevOps & Cloud Engineering Here is something nobody tells you when you start in DevOps: the error message is almost never the problem. It is just the messenger. A pod crashes — you blame the application. An API times out — you blame the network. A deployment fails — you … Read more
By KP | TZoneLabs | DevOps & Cloud Engineering We were in the middle of a production scaling event when everything went quiet — in the worst way possible. No crash. No alert. No obvious Kubernetes error. Just pods stuck in Pending, GitHub Actions deployment jobs timing out, and the entire team staring at dashboards … Read more