Ingress в Kubernetes

• Установка nginx-ingress через helm: helm install ingress-nginx ingress-nginx/ingress-nginx
• cert-manager + ClusterIssuer выписывает сертификаты автоматически
• Path-based routing: /api → api-svc, /web → web-svc
• Rate-limit: nginx.ingress.kubernetes.io/limit-rps: "10"
• Alternatives: Gateway API (K8s 1.29+) — более выразительный, заменит Ingress

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: api
  annotations:
    cert-manager.io/cluster-issuer: letsencrypt
    nginx.ingress.kubernetes.io/limit-rps: "10"
spec:
  ingressClassName: nginx
  tls:
    - hosts: [api.example.com]
      secretName: api-tls
  rules:
    - host: api.example.com
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service: { name: api-svc, port: { number: 80 } }

• K8s Gateway API
• CDN setup