🌐 Ingress

The Ingress is the cluster's "reception desk": it receives visits on port 80/443 and routes each domain or path to the right Service. This way you publish several sites with a single IP.

The SaveinCloud cluster already comes with two Ingress Controllers installed: Traefik and NGINX.

info

The Ingress is created with kubectl. The Nuvion Panel is used to look up the IP that will receive the traffic (step 4).

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🚀 Before you start

• Have cluster access configured (see Cluster Access).
• Have an application with a Service. Create one by following the Services page (steps 1 and 2).
• Have a domain, if you want to access it by name (optional for testing).

🚀 1. See the available controllers

kubectl get ingressclass

Note the name of the class you want to use (for example, nginx or traefik).

🚀 2. Create the Ingress file

Create the file web-ingress.yaml:

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: web-ingress
spec:
  ingressClassName: nginx   # replace with traefik, if you prefer
  rules:
    - host: app.example.com
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: web-svc
                port:
                  number: 80

🚀 3. Apply and verify

kubectl apply -f web-ingress.yaml
kubectl get ingress web-ingress

🚀 4. Find the Ingress IP

🖥️ Nuvion Panel

Go to Compute > Floating IPs (or Compute > Load Balancers) and find the IP associated with the cluster.

⌨️ kubectl (CLI)

kubectl get svc -A | grep -i -E "ingress|traefik"

See the EXTERNAL-IP column of the controller's Service.

🚀 5. Point the domain

In your DNS provider's panel, create an A record for app.example.com pointing to the IP from step 4.

🚀 6. Test

With DNS configured, open http://app.example.com in your browser.

To test without DNS:

curl -H "Host: app.example.com" http://INGRESS-IP

✅ How to know it worked

The Welcome to nginx! page appears.

❗ Common problems

Symptom	Cause	Solution
404 Not Found	Host or path differs from the Ingress	Check host and path
502 or 503	Service without pods	Run kubectl get endpoints web-svc
Does not open	DNS has not propagated or port 80 is blocked	Review DNS and the Security Groups
Empty ADDRESS on the Ingress	Incorrect class	Check the ingressClassName

🧹 Cleanup

kubectl delete ingress web-ingress

➡️ Next step: Configuration (ConfigMap)

🧠 Questions?

Talk to our SaveinCloud technical support team!