cloud-infrastructure

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• SKILL.md

SKILL.md (first lines)

# ABOUTME: AWS/GCP cloud infrastructure patterns and best practices
# ABOUTME: Well-Architected, security, cost optimization, observability

# Cloud Infrastructure (AWS & GCP)

## Quick Reference

```bash
# AWS
aws sts get-caller-identity
aws --profile staging ecs list-services

# GCP
gcloud auth list
gcloud config set project PROJECT_ID

# Security scanning
trivy config . && checkov -d .
```

**See:** `terraform/SKILL.md` | `_PATTERNS.md`

---

## AWS ECS vs EKS

| Factor | ECS | EKS |
|--------|-----|-----|
| Complexity | Lower | Higher (K8s) |
| Multi-cloud | No | Yes |
| Cost | Free control plane | $0.10/hr/cluster |

### ECS Task Definition
```hcl
resource "aws_ecs_task_definition" "app" {
  family                   = "app"
  requires_compatibilities = ["FARGATE"]
  network_mode             = "awsvpc"
  cpu                      = 256
  memory                   = 512
  container_definitions = jsonencode([{
    name   = "app"
    image  = "${var.ecr_repo}:${var.image_tag}"
    healthCheck = { command = ["CMD-SHELL", "curl -f http://localhost/health || exit 1"] }
  }])
}
```

---

## GCP Cloud Run

```yaml
spec:
  template:
    metadata:
      annotations:
        autoscaling.knative.dev/minScale: "1"
        autoscaling.knative.dev/maxScale: "100"
    spec:
      containerConcurrency: 80
      containers:
        - image: REGION-docker.pkg.dev/PROJECT_ID/REPO/IMAGE   # Artifact Registry
          resources: { limits: { cpu: "1", memory: "512Mi" } }
```

### OS-Only Runtime (No Dockerfile)

Deploy pre-compiled binaries without Dockerfile or language-specific runtime. Uses `google-24` stack with **automatic OS security patching**.

```bash
# Cross-compile (Go example, any compiled lang works)
GOOS=linux GOARCH=amd64 go build -o main ./cmd/app

# Deploy binary directly
gcloud beta run deploy SERVICE \
  --source . --no-build \
  --base-image=osonly24 \
  --project PROJECT_ID \
  --command ./main
```

**When to use:** Compiled binaries (Go, Dart, Rust), custom images built from scratch, or when you want auto-patching without maintaining a Dockerfile. Requires `google-24` stack.

---

## Cost Optimization

| Tool | Use |
|------|-----|
| Cost Explorer / Compute Optimizer | AWS analysis |
| Infracost | IaC cost in PRs |
| GCP FinOps Hub | Gemini recommendations |

**Compute:** Reserved (72% savings), Spot (90%), Graviton, auto-scaling
**Storage:** S3 Intelligent Tiering, lifecycle policies
**Networking:** VPC endpoints (avoid NAT costs)

---

## Observability (OpenTelemetry)

**Why OTEL:** Vendor-agnostic, unified traces/metrics/logs

```yaml
receivers:
  otlp: { protocols: { grpc: { endpoint: 0.0.0.0:4317 } } }
processors:
  batch: { timeout: 1s }
exporters:
  awsxray: { region: us-east-1 }
service:
  pipelines:
    traces: { receivers: [otlp], processors: [batch], exporters: [awsxray] }
```

---

## Networking

From maroffo/claude-forge, MIT.

More from maroffo/claude-forge