Alternativa a Kubernetes — Contenedores simples

# deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: api
spec:
  replicas: 2
  selector:
    matchLabels:
      app: api
  template:
    metadata:
      labels:
        app: api
    spec:
      containers:
        - name: api
          image: registry.example.com/api:latest
          ports:
            - containerPort: 3000
          resources:
            requests:
              cpu: 250m
              memory: 256Mi
            limits:
              cpu: 500m
              memory: 512Mi
          readinessProbe:
            httpGet:
              path: /health
              port: 3000
---
# service.yaml
apiVersion: v1
kind: Service
metadata:
  name: api
spec:
  selector:
    app: api
  ports:
    - port: 80
      targetPort: 3000
---
# ingress.yaml
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: api
  annotations:
    cert-manager.io/cluster-issuer: letsencrypt
spec:
  tls:
    - hosts:
        - api.example.com
      secretName: api-tls
  rules:
    - host: api.example.com
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: api
                port:
                  number: 80
---
# hpa.yaml
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
  name: api
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: api
  minReplicas: 2
  maxReplicas: 10
  metrics:
    - type: Resource
      resource:
        name: cpu
        target:
          type: Utilization
          averageUtilization: 70

# Aun necesario por separado:
# - cert-manager para certificados TLS
# - Controlador de Ingress (nginx/traefik)
# - Metrics Server para HPA
# - Prometheus para monitorizacion
# - Configuracion de cluster + pool de nodos

services:
  - id: api
    name: API
    dockerConfiguration:
      image: registry.example.com/api
      imageVersion: latest
    countMin: 2
    countMax: 10
    cpuLimit: 500
    memoryLimitMiB: 512
    ports:
      - listeningPort: 3000
        healthCheck:
          healthCheckEnabled: true
          healthCheckPath: /health
        loadBalancerRules:
          - publicPort: 443
            domain: api.example.com
    environmentVariables:
      - key: NODE_ENV
        value: "production"

# SSL, load balancing, autoscaling,
# monitorizacion y alertas estan
# incluidos — cero configuracion extra.