AWS Cloud

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

# 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

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