Kubernetes Cost Optimization

Help me optimize costs for my Kubernetes cluster.

Current setup:
- Cluster: [EKS/GKE/AKS]
- Node count: [number]
- Instance types: [current types]
- Monthly cost: [current spend]
- Utilization: [CPU/memory utilization]

Optimization areas:
1. Right-sizing
   - Pod resource requests/limits
   - Node instance types
   - Vertical Pod Autoscaler

2. Scaling optimization
   - Cluster Autoscaler configuration
   - HPA optimization
   - Scale-down policies
   - Scheduled scaling

3. Spot/Preemptible instances
   - Workload identification
   - Node pool configuration
   - Handling interruptions

4. Cost visibility
   - Namespace cost allocation
   - Label-based cost tracking
   - Kubecost/OpenCost setup
   - Chargeback reports

Include:
- Resource recommendations
- Autoscaler configurations
- Spot instance setup
- Cost monitoring dashboards