Challenge, Medium,  on  Kubernetes, Networking

Configure Ingress Routing with Traefik for a Multi-Service Shop Application

Scenario

A shop application is running in namespace prod with two backend microservices — product-service on port 9000 and cart-service on port 9001.

Traefik is already installed as the Ingress controller.

You need to create an Ingress resource to route traffic to the correct service based on the URL path and configure /etc/hosts so the hostname resolves correctly.

Task

Create an Ingress named shop-ingress in namespace prod. Use traefik as the ingressClassName and set the host to shop.familymart.com.

Route /products to product-service on port 9000, /cart to cart-service on port 9001.

After creating the Ingress, retrieve all Traefik LoadBalancer external IPs and add them to /etc/hosts on your node cplane-01, mapping them to shop.familymart.com so the domain resolves correctly from any node.

curl http://shop.familymart.com/products | jq

curl http://shop.familymart.com/cart | jq

After successfully creating the Ingress, run kubectl radar on cplane-01, open it in your browser on port 9280, and use the three-dot menu (⋮) in the top-right corner to select “Expose HTTP port” (optional).

Hint 1

Use spec.ingressClassName to specify traefik.

Run kubectl get svc traefik -n kube-system to get the LoadBalancer IP and add <IP> shop.familymart.com to /etc/hosts.

See the official docs: Ingress

Test Cases

How to Author Challenges on iximiuz Labs

Instead of providing a subpar online editing experience, iximiuz Labs offers a helper CLI tool called labctl, allowing you to use your favorite text editor (or a full-featured IDE) to write content from the comfort of your local machine.

Install labctl CLI

curl -sf https://labs.iximiuz.com/cli/install.sh | sh

This will download and install the latest version of the labctl CLI. You only need to do this once per workstation.

Authorize labctl

labctl auth login

This will open a browser window asking you to authorize labctl to access your account. You need to do it after a fresh install of labctl and repeat it whenever the auth session expires.

Pull challenge content

labctl content pull challenge configure-ingress-routing-with-traefik-for-multi-service-shop-app-3a0ccabe

This will create a local copy of the challenge content in a directory named configure-ingress-routing-with-traefik-for-multi-service-shop-app-3a0ccabe. You only need to do this once per challenge.

Stream your changes

labctl content push -fw challenge configure-ingress-routing-with-traefik-for-multi-service-shop-app-3a0ccabe

Run this command in a separate terminal to continuously upload your changes to the server while editing the challenge in your favorite text editor or IDE.

You can also use labctl to create, list, and delete your content. Learn more about the available commands: labctl content --help

Start challenge