Cloud Cost Management
Table of Contents
Overview
Cloud cost management involves monitoring, analyzing, and optimizing cloud spending. Implement strategies using reserved instances, spot pricing, proper sizing, and cost allocation to maximize ROI and prevent budget overruns.
When to Use
- Reducing cloud infrastructure costs
- Optimizing compute spending
- Managing database costs
- Storage optimization
- Data transfer cost reduction
- Reserved capacity planning
- Chargeback and cost allocation
- Budget forecasting and alerts
Quick Start
Minimal working example:
# Enable Cost Explorer
aws ce get-cost-and-usage \
--time-period Start=2024-01-01,End=2024-01-31 \
--granularity MONTHLY \
--metrics "UnblendedCost" \
--group-by Type=DIMENSION,Key=SERVICE
# List EC2 instances for right-sizing
aws ec2 describe-instances \
--query 'Reservations[*].Instances[*].[InstanceId,InstanceType,State.Name,LaunchTime,Tag]' \
--output table
# Find unattached EBS volumes
aws ec2 describe-volumes \
--filters Name=status,Values=available \
--query 'Volumes[*].[VolumeId,Size,State,CreateTime]'
# Identify unattached Elastic IPs
aws ec2 describe-addresses \
--query 'Addresses[?AssociationId==null]'
# Get RDS instance costs
aws rds describe-db-instances \
--query 'DBInstances[*].[DBInstanceIdentifier,DBInstanceClass,StorageType,AllocatedStorage]'
// ... (see reference guides for full implementation)Reference Guides
Detailed implementations in the references/ directory:
| Guide | Contents |
|---|---|
| AWS Cost Optimization with AWS CLI | AWS Cost Optimization with AWS CLI |
| Terraform Cost Management Configuration | Terraform Cost Management Configuration |
| Azure Cost Management | Azure Cost Management |
| GCP Cost Optimization | GCP Cost Optimization |
| Cost Monitoring Dashboard | Cost Monitoring Dashboard |
Best Practices
✅ DO
- Use Reserved Instances for stable workloads
- Implement Savings Plans for flexibility
- Right-size instances based on metrics
- Use Spot Instances for fault-tolerant workloads
- Delete unused resources regularly
- Enable detailed billing and cost allocation
- Monitor costs with CloudWatch/Cost Explorer
- Set budget alerts
- Review monthly cost reports
❌ DON'T
- Leave unused resources running
- Ignore cost optimization recommendations
- Use on-demand for predictable workloads
- Skip tagging resources
- Ignore data transfer costs
- Forget about storage lifecycle policies