AgentSkillsCN

Cloud Cost Optimizer

云成本优化器

SKILL.md

Cloud Cost Optimizer

Cloud cost optimization and reporting for AWS, GCP, Azure.

When to Use

Use this skill when:

  • •Identifying cloud cost waste and inefficiencies
  • •Optimizing cloud infrastructure spending
  • •Analyzing cost allocation and chargebacks
  • •Rightsizing cloud resources
  • •Planning reserved instances and savings plans
  • •Setting cost budgets and alerts
  • •Multi-cloud cost management
  • •Cloud cost reporting and forecasting

Key Concepts

Cost Analysis

  • •Cost Allocation: Tag-based cost distribution
  • •Rightsizing: Matching resources to actual usage
  • •Idle Resources: Identify unused/underutilized assets
  • •Orphaned Resources: Unattached volumes, snapshots, EIPs
  • •Storage Optimization: Tiering and lifecycle policies

Cost Optimization Strategies

  • •Reserved Instances (RIs): Pre-purchase for 1-3 year terms
  • •Savings Plans: Flexible commitment pricing
  • •Spot Instances: Use spare capacity (up to 90% savings)
  • •Auto Scaling: Scale based on demand
  • •Instance Families: Choose cost-effective instance types
  • •Storage Classes: Use S3 tiers, Glacier, Archive
  • •Data Transfer: Minimize egress costs

Monitoring & Alerting

  • •Budgets: Set spending limits and alerts
  • •Anomaly Detection: Unusual spending patterns
  • •Cost Trends: Historical analysis and forecasting
  • •Real-time Monitoring: Track spending by service, tag, region

Cloud Provider Tools

AWS

  • •Cost Explorer: Detailed cost analysis
  • •AWS Budgets: Budgets and alerts
  • •Trusted Advisor: Cost optimization recommendations
  • •Compute Optimizer: Rightsizing recommendations
  • •S3 Storage Lens: Storage cost analysis
  • •Cost and Usage Report (CUR): Detailed billing data

GCP

  • •Cloud Billing: Cost breakdown and reports
  • •Cost Management: Budgets and forecasts
  • •Recommendations: Cost optimization suggestions
  • •BigQuery Export: Analyze billing data

Azure

  • •Cost Management: Monitor and optimize costs
  • •Budgets: Set spending limits
  • •Advisor: Optimization recommendations
  • •Cost Analysis: Detailed cost reports

Third-Party Tools

  • •CloudHealth: Multi-cloud cost management
  • •Cloudability: AWS cost optimization
  • •Spot.io: Automated cloud optimization
  • •Infracost: Terraform cost estimation
  • •Kubecost: Kubernetes cost monitoring

Patterns and Practices

Cost Optimization Workflow

  1. •Audit Current Spending: Comprehensive cost analysis
  2. •Identify Waste: Idle, orphaned, over-provisioned resources
  3. •Rightsize Resources: Match to actual usage
  4. •Purchase Commitments: RIs and Savings Plans
  5. •Implement Tagging: Enable cost allocation
  6. •Set Budgets & Alerts: Proactive monitoring
  7. •Monitor Trends: Track optimization impact
  8. •Review Regularly: Monthly cost reviews

Tagging Strategy

  • •Environment: prod, dev, test, staging
  • •Owner/Team: responsible team or individual
  • •Project/Service: specific project or service name
  • •Cost Center: billing code or department
  • •Purpose: web, database, cache, storage

Best Practices

  • •Implement comprehensive tagging strategy
  • •Use auto-scaling for variable workloads
  • •Schedule non-production resources to stop
  • •Use appropriate storage classes for data lifecycle
  • •Purchase RIs for predictable workloads
  • •Use spot instances for batch processing
  • •Monitor and clean up unused resources
  • •Regularly review and update security groups/route tables
  • •Optimize data transfer costs
  • •Use CloudWatch Logs Insights for cost-effective log analysis

AWS CLI Examples

Cost Explorer

bash
aws ce get-cost-and-usage \
  --time-period Start=2024-01-01,End=2024-01-31 \
  --granularity MONTHLY \
  --metrics BlendedCost \
  --group-by Type=DIMENSION,Key=SERVICE

Identify Idle EC2 Instances

bash
aws ec2 describe-instances \
  --query 'Reservations[].Instances[?State.Name==`running`].[InstanceId,LaunchTime]' \
  --output table

Get Savings Plans Recommendations

bash
aws ce get-savings-plans-purchase-recommendation

Terraform Cost Estimation

hcl
resource "aws_instance" "web" {
  instance_type = "t3.micro"  # Cost-optimized choice

  tags = {
    Environment = "prod"
    CostCenter  = "engineering"
  }
}

File Patterns

Look for:

  • •**/terraform/**/*
  • •**/cloudformation/**/*
  • •**/kubernetes/**/*
  • •**/iac/**/*
  • •**/cost-optimizer/**/*
  • •**/*.tf, **/*.yaml (CloudFormation)

Keywords

Cloud cost, cost optimization, AWS, GCP, Azure, cost analysis, reserved instances, savings plans, spot instances, rightsizing, cost allocation, cloud billing, cost monitoring, budgeting, cloud waste