change dir name orch,container

Containerization-Orchestration/Kubernetes/Commands/3-Commands.md

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+# Kubernetes Command Reference
+
+This guide provides a concise reference for common `kubectl` commands used to manage Kubernetes clusters. Whether you’re managing nodes, namespaces, pods, deployments, or autoscaling, the examples below will help you perform everyday tasks with confidence.
+
+## General Commands
+
+- **List API Resources**  
+  Display all available API resources along with their short names:
+
+  ```bash
+  kubectl api-resources
+  ```
+
+---
+## API Resources & Documentation
+
+- **Get Detailed Documentation for an API Resource**
+
+  ```bash
+  kubectl explain <api-resource-name>
+  ```
+
+  *Example:*
+
+  ```bash
+  kubectl explain pod
+  ```
+
+  ```bash
+  kubectl explain pod.metadata
+  ```
+
+
+---
+
+## Applying YAML Files
+
+- **Apply a Configuration from a YAML File**
+
+  Apply a YAML configuration to a specific namespace:
+
+  ```bash
+  kubectl apply -f <yaml-file> -n <namespace-name>
+  ```
+
+---
+
+## Viewing Cluster Resources
+
+- **Display All Resources in a Namespace**
+
+  ```bash
+  kubectl get all -n <namespace-name>
+  ```
+
+- **Display ReplicaSets, Pods, and Deployments in a Specific Namespace**
+
+  ```bash
+  kubectl get rs,pods,deployments -n <namespace-name>
+  ```
+
+---
+
+## ReplicaSet & Deployment Management
+
+### Scaling and Rollouts
+
+- **Scale a ReplicaSet**
+
+  ```bash
+  kubectl scale rs <replicaset-name> --replicas=<count> -n <namespace-name>
+  ```
+
+- **View Rollout History of a Deployment**
+
+  ```bash
+  kubectl rollout history deployment <deployment-name> -n <namespace-name>
+  ```
+
+- **View Details of a Specific Revision**
+
+  ```bash
+  kubectl rollout history deployment <deployment-name> -n <namespace-name> --revision=<number>
+  ```
+
+- **Roll Back a Deployment to a Specific Revision**
+
+  ```bash
+  kubectl rollout undo deployment <deployment-name> -n <namespace-name> --to-revision=<number>
+  ```
+
+### Autoscaling
+
+- **Autoscale a Deployment**  
+  Automatically scale a deployment based on CPU utilization:
+
+  ```bash
+  kubectl autoscale deployment <deployment-name> -n <namespace-name> --cpu-percent=<target-cpu-percentage> --min=<min-pods> --max=<max-pods>
+  ```
+
+- **View Horizontal Pod Autoscalers (HPA)**
+
+  ```bash
+  kubectl get hpa -n <namespace-name>
+  ```
+
+---
+
+
+---
+
+## Additional Information
+
+- **Static Manifest Files**  
+  Any YAML files placed in `/etc/kubernetes/manifests/` are automatically loaded when the kubelet starts (for example, after a server reboot).
+
+
+
+```bash
+kubectl cp -n <ns> <pod-name>:dir/ ./
+```

Containerization-Orchestration/Kubernetes/Commands/label.md

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+- **Set a Custom Label on a Node**
+
+  ```bash
+  kubectl label node <node-name> kubernetes.io/<label-key>=<label-value>
+  ```
+
+  > **Note:** Replace `<node-name>`, `<label-key>`, and `<label-value>` with your desired values.
+
+

Containerization-Orchestration/Kubernetes/Commands/log-debug.md

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+
+- **Stream Logs for a Running Pod**
+
+  ```bash
+  kubectl logs -f -n <namespace-name> <pod-name>
+  ```
+
+
+
+  ```bash
+  kubectl logs -f -n <namespace-name> <pod-name> -c <container-name>
+  ```
+
+
+
+- **Get Detailed Information About a Pod**
+
+  ```bash
+  kubectl describe pod <pod-name> -n <namespace-name>
+  ```
+
+
+in log swith the pod need to be up 
+
+but in describe dont need to pod be up
+
+describe work on all components

Containerization-Orchestration/Kubernetes/Commands/node-manage.md

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+# 🌐 Node Management with Kubernetes
+
+Efficient management of Kubernetes nodes ensures cluster stability and workload flexibility. Below are key commands for listing and maintaining nodes.
+
+---
+
+## 📋 Listing Nodes
+
+### 🔹 Show All Nodes
+```bash
+kubectl get nodes
+````
+
+### 🔹 Show Nodes with Labels
+
+```bash
+kubectl get nodes --show-labels
+```
+
+---
+
+## 🔧 Node Maintenance (Cordon / Drain)
+
+### 🚫 Cordon a Node
+
+Prevent new pods from being scheduled on the node.
+
+```bash
+kubectl cordon <node-name>
+```
+
+### ✅ Uncordon a Node
+
+Mark the node as schedulable again.
+
+```bash
+kubectl uncordon <node-name>
+```
+
+### 🧹 Drain a Node
+
+Evict all pods from the node (excluding those managed by DaemonSets).
+
+* Forcefully drain the node:
+
+  ```bash
+  kubectl drain <node-name> --ignore-daemonsets --force
+  ```
+
+* Drain and delete local data:
+
+  ```bash
+  kubectl drain <node-name> --ignore-daemonsets --delete-local-data
+  ```
+
+#### 🔄 Undo Drain (Uncordon)
+
+```bash
+kubectl uncordon <node-name>
+```
+
+> ⚠️ **Warning:** Draining a node will evict running pods. Ensure that this is planned to avoid service disruption.
+