Bits of .NET

Paying for multiple cloud load balancers? Ingress routes traffic to different services based on hostname or path.

# ingress.yaml
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: main-ingress
  annotations:
    # NGINX Ingress Controller
    nginx.ingress.kubernetes.io/rewrite-target: /
    nginx.ingress.kubernetes.io/ssl-redirect: "true"
    nginx.ingress.kubernetes.io/proxy-body-size: "10m"
    # Cert-Manager for SSL
    cert-manager.io/cluster-issuer: "letsencrypt-prod"
spec:
  tls:
  - hosts:
    - api.example.com
    - app.example.com
    - admin.example.com
    secretName: tls-secret
  rules:
  - host: api.example.com
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: api-service
            port:
              number: 3000
  - host: app.example.com
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: frontend-service
            port:
              number: 80
  - host: admin.example.com
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: admin-service
            port:
              number: 8080
  - host: monitoring.example.com
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: grafana-service
            port:
              number: 3000