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Containerization & Orchestration/Kubernetes/workloads/01-NameSpace.md

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+# Kubernetes Namespaces Guide
+
+Kubernetes **namespaces** allow you to organize and isolate resources within your cluster.
+
+---
+
+## 🧾 Listing Namespaces
+
+To list all namespaces:
+
+```bash
+kubectl get namespaces
+```
+
+or the shorthand:
+
+```bash
+kubectl get ns
+```
+
+---
+
+## 🛠️ Creating a Namespace
+
+Create a new namespace:
+
+```bash
+kubectl create namespace <namespace-name>
+```
+
+or:
+
+```bash
+kubectl create ns <namespace-name>
+```
+
+---
+
+## 🗑️ Deleting a Namespace
+
+Delete a namespace:
+
+```bash
+kubectl delete ns <namespace-name>
+```
+
+---
+
+## ⚠️ Best Practices & Notes
+
+* **Namespaces are isolated**, but they **can still communicate** with each other by default.
+* It is **not recommended to create namespaces that start with `kube-`**, as those are typically reserved for system components.
+
+---
+
+## 📄 Creating a Namespace with a Manifest
+
+You can define a namespace using a YAML manifest:
+
+```yaml
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: namespace-test
+```
+
+Apply it using:
+
+```bash
+kubectl apply -f namespace.yaml
+```
+