Awesome! You’re moving fast! Let's dive into:

---

## 🌐 Step 7: Ingress – Expose Multiple Services with a Single IP & Domain

### 🔎 What is Ingress?

**Ingress** is like a smart HTTP router 🔀 in Kubernetes. It allows you to:

- Use **one IP address** for multiple apps
- Route traffic based on **path** or **domain**
- Use **TLS/SSL (HTTPS)** easily
- Do **URL rewriting**, **redirects**, etc.

---

## 🧱 Real Example: Host Multiple Apps

Let’s say:
- `/app1` → goes to your **nginx** app
- `/app2` → goes to your **tomcat** app

### 🌐 Architecture:

```
Client
  ↓
Ingress Controller (e.g. NGINX Ingress)
  ↓
 ┌─────────────┐     ┌──────────────┐
 │ Service 1   │     │ Service 2    │
 │ nginx       │     │ tomcat       │
 └─────────────┘     └──────────────┘
```

---

## 🧰 Step-by-Step Setup

### 1️⃣ Install an Ingress Controller

For Minikube:

```bash
minikube addons enable ingress
```

Verify:

```bash
kubectl get pods -n ingress-nginx
kubectl get svc -n ingress-nginx
```

---

### 2️⃣ Create Deployments + Services

#### Example: Nginx

```bash
kubectl create deployment nginx-app --image=nginx
kubectl expose deployment nginx-app --port=80 --name=nginx-service
```

#### Example: Tomcat

```bash
kubectl create deployment tomcat-app --image=tomcat
kubectl expose deployment tomcat-app --port=8080 --name=tomcat-service
```

---

### 3️⃣ Create Ingress Resource

Save this as `ingress.yaml`:

```yaml
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: my-ingress
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
  - http:
      paths:
      - path: /nginx
        pathType: Prefix
        backend:
          service:
            name: nginx-service
            port:
              number: 80
      - path: /tomcat
        pathType: Prefix
        backend:
          service:
            name: tomcat-service
            port:
              number: 8080
```

Apply it:

```bash
kubectl apply -f ingress.yaml
```

---

### 4️⃣ Access It!

Run this if you're using Minikube:

```bash
minikube ip
```

Visit in your browser:

- `http://<minikube-ip>/nginx`
- `http://<minikube-ip>/tomcat`

---

### ✅ Done! Now you have:
- One IP
- Two apps
- Routed cleanly with Ingress 😎

---

Want to try this on AWS (with real DNS + HTTPS)? Or explore **config maps, secrets**, or **persistent storage (volumes)** next?