The Cast AI blog
Guides, tutorials, and tips on Kubernetes automation, from cost optimization to cloud security and everything in between.
Kubernetes ImagePullBackOff and ErrImagePull: Causes and Fixes
Learn what causes Kubernetes ImagePullBackOff and ErrImagePull, how to diagnose image pull failures with kubectl describe pod, and the fastest fixes for common issues like invalid…

OpenCost for Kubernetes: How to Set Up Open-Source Cost Monitoring
Learn how to set up OpenCost for Kubernetes to monitor and allocate infrastructure costs by…

Kubernetes Cost Management: Visibility, Allocation, and Control
Kubernetes cost management combines cost visibility, allocation, governance, and continuous review to control cluster spend.…

Kubernetes GPU Optimization: How to Cut GPU Waste Without Slowing Workloads
Learn how to optimize Kubernetes GPU utilization with proven strategies for MIG, time-slicing, and Dynamic…

Kubernetes Cost Optimization: How to Reduce Cluster Waste Without Hurting Reliability
A practical, engineering-led guide to cutting Kubernetes waste across pods, nodes, autoscaling, and governance. Backed…

Kubernetes Cost Allocation: How to Break Down Spend by Team, Namespace, and Workload
Kubernetes cost allocation maps cluster spend to teams, namespaces, and workloads using labels and a…

Karpenter vs Cluster Autoscaler: Which to Use in 2026
Karpenter vs Cluster Autoscaler compared on provisioning, consolidation, bin packing, and cost. A clear recommendation…

Best GPU Optimization Tools for Kubernetes and AI Workloads (2026)
GPU optimization tools help teams measure, allocate, share, and automate GPU resources in Kubernetes to…

Deploy Karpenter on EKS: Node Auto-Scaling Guide (2026)
Learn how to deploy Karpenter on Amazon EKS with the latest v1 API and optimize…

Top 8 Kubernetes Cost Optimization & Management Tools in 2026: The Honest Comparison
Discover the best Kubernetes cost optimization and management tools for reducing cloud spend. Compare visibility…
