Awesome! Here's a full **YAML-based example** that covers:

- Creating a Namespace  
- Deploying `nginx` in that namespace  
- Adding Labels  
- Exposing it with a Service that uses a Label Selector  

---

## 📄 `nginx-deploy.yaml`

```yaml
apiVersion: v1
kind: Namespace
metadata:
  name: test-ns
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deploy
  namespace: test-ns
  labels:
    app: nginx
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
        env: dev
    spec:
      containers:
      - name: nginx
        image: nginx
        ports:
        - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: nginx-service
  namespace: test-ns
spec:
  selector:
    app: nginx
  type: NodePort
  ports:
    - port: 80
      targetPort: 80
      nodePort: 30008
```

---

## ✅ Apply This Configuration:

Save it as `nginx-deploy.yaml` and apply with:

```bash
kubectl apply -f nginx-deploy.yaml
```

---

## 🚀 Test It:

To access the service:
```bash
minikube service nginx-service -n test-ns
```

Or get the URL manually:
```bash
minikube service nginx-service -n test-ns --url
```

---

Let me know once you’ve tested it — and we’ll jump into **ConfigMaps & Secrets** next. You're doing great!