Kubernetes CrashLoopBackOff: Causes and How to Fix It
What CrashLoopBackOff means, the common reasons a pod keeps restarting, and a step-by-step way to diagnose and fix the crash loop with kubectl.
Kubernetes ImagePullBackOff and ErrImagePull: How to Fix
What ImagePullBackOff and ErrImagePull mean, why Kubernetes can't pull your container image, and how to diagnose and fix the most common causes.
Kubernetes OOMKilled (Exit Code 137): Causes and Fixes
Why Kubernetes kills pods with OOMKilled and exit code 137, how memory requests and limits cause it, and how to diagnose and fix out-of-memory restarts.
Docker Container Unhealthy: How to Debug Health Checks
Why a Docker container shows 'unhealthy', how to read HEALTHCHECK logs, debug docker-compose health checks, and fix the most common causes fast.
Docker Container Monitoring: Health Checks, Restarts & Uptime
Monitor Docker containers beyond HEALTHCHECK. Catch unhealthy restarts, OOMKilled events, crash loops, port failures, and HTTP errors with external checks.
Kubernetes Monitoring: Health Checks, Pod Uptime, and Alerting
Kubernetes clusters fail in ways that traditional monitoring misses. Learn how to monitor pod health, service endpoints, and set up alerts for K8s downtime.