💰 AWS Cost Optimization

Introduction

AWS provides tools to monitor, analyze, and optimize cloud spending.

Key Learning Outcomes

By the end of this lesson, you'll understand:

• Cost Explorer and analysis

• Reserved Instances (RIs)

• Spot Instances

• Cost allocation and tagging

• Budgets and alerts

• Best practices

Cost Explorer

# Get cost and usage
aws ce get-cost-and-usage \
  --time-period Start=2024-01-01,End=2024-01-31 \
  --granularity DAILY \
  --metrics "UnblendedCost" \
  --group-by Type=DIMENSION,Key=SERVICE

Reserved Instances

# Get RI recommendations
aws ec2 describe-reserved-instances-offerings \
  --instance-type t3.micro \
  --offering-type "All Upfront"

# Purchase RI
aws ec2 purchase-reserved-instances-offering \
  --reserved-instances-offering-id xxxxx \
  --instance-count 1

Spot Instances

# Request Spot Instance
aws ec2 request-spot-instances \
  --spot-price "0.03" \
  --instance-count 1 \
  --type "one-time" \
  --launch-specification file://launch-spec.json

Tagging

# Tag resource
aws ec2 create-tags \
  --resources i-1234567890abcdef0 \
  --tags Key=Environment,Value=production Key=Project,Value=myapp

# Get costs by tag
aws ce get-cost-and-usage \
  --group-by Type=TAG,Key=Project

Budgets

# Create budget
aws budgets create-budget \
  --account-id ACCOUNT \
  --budget file://budget.json \
  --notifications-with-subscribers file://notifications.json

Key Takeaways

• **Monitor** spending with Cost Explorer

• **Reserved Instances** save 25-72%

• **Spot Instances** reduce costs 70%+

• **Tagging** enables cost allocation

• **Budgets** control spending

Next Steps

Implement comprehensive cost optimization strategy, or explore advanced AWS services.