K9S
🐾 K9s Cheat-Sheet
K9s is a command-line interface designed to simplify managing Kubernetes Clusters. It allows you to interact with clusters in an efficient way, making tasks like editing resource manifests, shelling into pods, and managing multiple clusters easier.
- More Information & Releases: K9s GitHub Repository
🔍 Overview
Product Type: Command-Line Interface (CLI) for Kubernetes Management
Focus: Simplifying interaction with Kubernetes clusters by providing easy access to resources and quick actions for managing pods, services, and other Kubernetes components.
Resource Management: Efficiently manage and interact with Kubernetes resources (pods, services, etc.)
Multiple Clusters: Switch between multiple clusters quickly
Interactive Interface: Use keyboard shortcuts for seamless operation
Logs and Shelling: Easily view logs or shell into containers
⚙️ Installation
📦 On Linux
🔍 Find and Download the Latest Release
Visit the release page, choose the appropriate package (e.g., Linux_x86_64), and copy the download link. Use the following commands to download and unpack the archive:
wget https://github.com/derailed/k9s/releases/download/v0.26.6/k9s_Linux_x86_64.tar.gz
tar -xvf k9s_Linux_x86.tar.gz
🛠️ Install K9s
sudo install -o root -g root -m 0755 k9s /usr/local/bin/k9s
🖱️ Commands
🌐 Cluster Selection
Once K9s is running, you can change the cluster by typing :context. A list of available configurations appears. Use the arrow keys to select the desired cluster and press enter.
📝 General Command Structure
📜 Menu
You can switch between resource types by pressing :. Then, type the resource type (e.g., pod, services) and press enter to confirm.
👀 Selection
Selections are made using the arrow keys. After selecting a resource, press enter to drill down and view more details (e.g., view running containers inside a pod).
🔍 Filter & Searches
In almost every K9s screen, you can apply filters or search by pressing / and entering your search term. Press enter to apply the filter or search. Some screens allow namespace filtering using number keys, where 0 shows all namespaces.
⏩ Useful Shortcuts and Commands
| Command | Description | Comparable kubectl Command |
|---|---|---|
:pod | Switch to the pod screen to view all pods in the current cluster. | kubectl get pods --all-namespaces |
:services | Switch to the service screen to view all services. | kubectl get services --all-namespaces |
ctrl+d | Delete a resource. | kubectl delete <resource> -n <namespace> |
ctrl+k | Kill a resource (no confirmation). | |
s | On the Pod screen, open a shell into the selected pod. | kubectl exec -n <namespace> <pod_name> -c <container_name> -- /bin/bash |
l | Show the log output of a pod. | kubectl logs -n <namespace> <pod_name> |
📚 Resources
Official Website: K9s GitHub Repository
Documentation: K9s Wiki
🔁 Related
Getting Started with Kubernetes — A guide to setting up and managing Kubernetes clusters.
Using Kubernetes with Helm — Dive deeper into Helm's features for managing Kubernetes applications.
🌍 Explore More
Explore Kubernetes Networking to learn about networking in a containerized environment.
Dive into K9s Troubleshooting for advanced troubleshooting techniques when managing your K9s clusters.
Tags 📚
#k9s #kubernetes #CLI #kubectl-alternative #container-management