# CKS-009 — Add TLS to an existing Ingress

Domain: **1.3 Ingress TLS**  
Time: **6 minutes** · Score: **Section B only**

## Existing configuration

Certificate files already exist:

```text
/opt/certs/store.crt
/opt/certs/store.key
```

The complete existing Ingress is:

```yaml
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: storefront
  namespace: shop
  annotations:
    nginx.ingress.kubernetes.io/ssl-redirect: "true"
spec:
  ingressClassName: nginx
  rules:
  - host: store.example.com
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: storefront
            port:
              number: 80
```

## Task

1. Inspect the certificate and confirm it covers `store.example.com`.
2. Create TLS Secret `storefront-tls` in namespace `shop` from the supplied files.
3. Update the Ingress for TLS using that Secret without changing its existing route.
4. Verify the Secret type and show the final Ingress.

## Section B — scored answer

```bash
k create secret -n shop tls storefront-tls --cert=/opt/certs/store.crt --key=/opt/certs/store.key
```

```yaml
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: storefront
  namespace: shop
  annotations:
    nginx.ingress.kubernetes.io/ssl-redirect: "true"

spec:
  ingressClassName: nginx

  tls:
  - hosts:
      - store.example.com
    secretName: storefront-tls
  rules:
  - host: store.example.com
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: storefront
            port:
              number: 80

k get ingress -n shop storefront
k describe ingress -n shop storefront
```

Say **Grade CKS-009** when saved.