srstomp/cloud-infrastructure

Cloud Infrastructure

Design and provision cloud infrastructure with AWS-primary patterns and cloud-agnostic naming for portability.

Decision Framework

New service/workload?
├── Stateless, event-driven, <15min → Serverless (Lambda + API GW)
├── Long-running, stateful, predictable → Containers (ECS Fargate)
├── Kubernetes-native, multi-cloud → Orchestration (EKS)
└── Static content, CDN → Storage (S3 + CloudFront)

Database needs?
├── Key-value, <1ms, scale-to-zero → DynamoDB
├── Relational, complex queries → RDS/Aurora
├── Document store, flexible schema → DocumentDB
└── Cache, sessions, pub/sub → ElastiCache (Redis)

IaC approach?
├── AWS-only, type-safe → CDK (TypeScript)
├── Multi-cloud, declarative → Terraform
└── Simple, YAML → CloudFormation

When NOT to Use

• CI/CD pipelines: Use ci-cd skill for pipeline config (CodePipeline, GitHub Actions)
• Database schema design: Use database-design skill for schema/migrations/queries
• Application-level monitoring: Use observability skill for application metrics/logs/traces

References

| File | Use When | |------|----------| | references/service-selection.md | Choosing between AWS compute, database, or messaging services | | references/cdk-patterns.md | Writing CDK constructs, organizing stacks, L1/L2/L3 patterns | | references/serverless-patterns.md | Building Lambda functions, API Gateway, Step Functions, event-driven | | references/container-patterns.md | ECS Fargate task definitions, service discovery, health checks | | references/iam-and-security.md | IAM policies, security groups, VPC design, least privilege | | references/storage-and-cdn.md | S3 configuration, CloudFront distributions, caching strategies | | references/database-selection.md | DynamoDB patterns, RDS/Aurora configuration, managed DB comparison | | references/cost-optimization.md | Right-sizing, reserved capacity, cost estimation, billing alerts |