Kubernetes articles

How to leverage Kubernetes metrics

Learn the Kubernetes metrics that matter for resource usage, cluster state, control plane health, and day-to-day workload debugging.

8 tips for Kubernetes in production

Production Kubernetes needs monitoring, RBAC, resource controls, versioned manifests, and operational discipline. This guide covers the checks that matter.

Kubernetes operators: a complete guide

Learn how Kubernetes operators extend the API to manage application lifecycle, stateful systems, upgrades, backups, and automation.

Kubernetes monitoring: a complete developer guide

A practical guide to Kubernetes monitoring layers, useful metrics, workload visibility, and the limits of raw cluster telemetry.

How to use the NGINX Prometheus exporter

Connect NGINX metrics to Prometheus with the NGINX Prometheus exporter and configure scraping for basic service monitoring.

Prometheus exporters: tutorial and best practices

Learn how Prometheus exporters expose third-party metrics, how to build a simple exporter, and what practices keep metrics useful.

Prometheus metrics: types, capabilities, and best practices

Understand Prometheus metric types, collection architecture, storage behavior, custom metrics, and Kubernetes monitoring use cases.

How to use Kubernetes metrics

Learn the Kubernetes metrics that matter for resource usage, cluster state, control plane health, and day-to-day workload debugging.

Troubleshooting "Terminated with exit code 1" in Kubernetes

Debug Kubernetes containers that terminate with exit code 1 by checking logs, commands, arguments, resources, and pod recreation behavior.

How to fix exit code 137 in Kubernetes

Exit code 137 usually means the container was killed for memory pressure. Learn how to identify OOM kills and prevent repeat failures.

Kubernetes CPU limits and throttling overview

Understand Kubernetes CPU requests, limits, throttling, and the failure modes caused by weak resource configuration.

Kubernetes network policies: an actionable guide

Use Kubernetes network policies to control pod traffic, restrict lateral movement, and make cluster networking less permissive by default.

Kubernetes storage classes overview

Understand Kubernetes StorageClasses, dynamic provisioning, reclaim policies, volume binding, and persistent volume claims.

How to use Kubernetes ephemeral volumes and storage

A guide to Kubernetes ephemeral storage options, emptyDir, CSI ephemeral volumes, generic ephemeral volumes, and monitoring storage pressure.

How to deploy Postgres on Kubernetes

A practical walkthrough for deploying Postgres on Kubernetes with ConfigMaps, persistent volumes, deployments, services, and basic production cautions.

Minikube for local Kubernetes development

How to use Minikube for local Kubernetes development, basic cluster operations, and testing ML workloads before moving to shared infrastructure.

Kubectl command not found: causes and fixes

Diagnose kubectl command not found errors caused by missing installs, PATH issues, permissions, Docker state, or Minikube command syntax.

How to use kubectl scale

Use kubectl scale to change replica counts safely, understand conditional scaling, and avoid accidental production impact.

How to use kubectl proxy

Learn how kubectl proxy exposes the Kubernetes API locally, when it helps, and what alternatives to use for application access.

Using kubectl delete

Use kubectl delete safely for Kubernetes resources, files, labels, namespaces, force deletion, and cleanup workflows.

Using kubectl logs

Use kubectl logs to inspect pod, container, and owner resource logs, including timestamps, tailing, selectors, and recent output.

How to use kubectl describe

Use kubectl describe to inspect Kubernetes resources, events, labels, pod state, and failure details without guessing from status alone.

How to use kubectl run

Use kubectl run to create quick pods for testing images, commands, ports, and dry-run manifests in a Kubernetes cluster.

How to use the Kubernetes control plane

Understand the Kubernetes control plane, its core components, and the operational practices that keep scheduling and reconciliation healthy.