Kubernetes Ingress — NGINX Routing Rules

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: app-ingress
  namespace: production
  annotations:
    nginx.ingress.kubernetes.io/ssl-redirect: 'true'
    nginx.ingress.kubernetes.io/rate-limit: '100'
    nginx.ingress.kubernetes.io/rate-limit-window: '1m'
    nginx.ingress.kubernetes.io/proxy-body-size: '10m'
    nginx.ingress.kubernetes.io/cors-allow-origin: 'https://example.com'
    cert-manager.io/cluster-issuer: letsencrypt-prod
spec:
  ingressClassName: nginx
  tls:
    - hosts:
        - api.example.com
        - app.example.com
      secretName: app-tls
  rules:
    - host: api.example.com
      http:
        paths:
          - path: /v1
            pathType: Prefix
            backend:
              service:
                name: api-v1
                port:
                  number: 3000
          - path: /v2
            pathType: Prefix
            backend:
              service:
                name: api-v2
                port:
                  number: 3000
    - host: app.example.com
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: frontend
                port:
                  number: 80