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name: aws-cloud description: AWS cloud infrastructure patterns and best practices. Use when designing or implementing AWS solutions including EC2, Lambda, S3, RDS, and infrastructure as code with Terraform or CloudFormation.

AWS Cloud Skill

This skill provides AWS architecture patterns and best practices.

Core Services

Well-Architected Framework

1. Operational Excellence - Automation, monitoring
2. Security - IAM, encryption, compliance
3. Reliability - Multi-AZ, backups, DR
4. Performance - Right-sizing, caching
5. Cost Optimization - Reserved instances, spot

Terraform Patterns

Copy# VPC with public/private subnets
module "vpc" {
  source = "terraform-aws-modules/vpc/aws"

  name = "my-vpc"
  cidr = "10.0.0.0/16"

  azs             = ["us-east-1a", "us-east-1b"]
  private_subnets = ["10.0.1.0/24", "10.0.2.0/24"]
  public_subnets  = ["10.0.101.0/24", "10.0.102.0/24"]

  enable_nat_gateway = true
}

Security Best Practices

• Use IAM roles, not access keys
• Enable MFA for root and IAM users
• Encrypt data at rest (KMS)
• Use VPC for network isolation
• Enable CloudTrail for audit
• Use Security Groups as firewalls

Cost Optimization

• Use Reserved Instances for steady workloads
• Use Spot Instances for flexible workloads
• Right-size instances based on metrics
• Use S3 lifecycle policies
• Enable Cost Explorer alerts