Whether you’re a beginner or need a refresher, bookmark this for easy access!

Essential kubectl Commands for Pods

1. Create & Manage Pods

# Create a Pod from an image  
kubectl run <pod-name> --image=<image-name>  

# List all Pods (default namespace)  
kubectl get pods  

# Detailed Pod info (IP, node, status)  
kubectl get pods -o wide  

# Describe a Pod (debugging, events, config)  
kubectl describe pod <pod-name>  

# Delete a Pod  
kubectl delete pod <pod-name>

2. Accessing Pods & Containers

# Start an interactive shell in a Pod  
kubectl exec -it <pod-name> -- sh  

# Access a specific container in a multi-container Pod  
kubectl exec -it <pod-name> -c <container-name> -- bash  

# View Pod logs  
kubectl logs <pod-name>

3. Node & Cluster Info

# List nodes with extended details (OS, container runtime)  
kubectl get nodes -o wide

Creating a Pod Using YAML

Here’s a basic pod.yaml I used to deploy an NGINX container:

apiVersion: v1  
kind: Pod  
metadata:  
  name: nginx-pod  
spec:  
  containers:  
  - name: nginx-container  
    image: nginx

Commands to Apply YAML:

# Create the Pod  
kubectl apply -f pod.yaml  

# Delete the Pod (via YAML)  
kubectl delete -f pod.yaml

Key Takeaways from My Learning

1. Pods are ephemeral – They can crash or reschedule, so treat them as disposable.

2. Multi-container Pods share networking and storage.

3. Always check logs (kubectl logs) when debugging issues.

🔹 File Management

• echo: Print text to the screen

• ls: List files and folders

• cd <dir_name>: Change directory

• mkdir <new_directory>: Create a new directory

• rm -r <dir>: Remove a directory and its contents

• cp -r <source> <destination>: Copy a directory and its contents

• mv <source> <destination>: Rename or move files

🔹 User Management

• whoami: Show the current user

• id: Get user and group info

• su <user>: Switch user

• sudo <command>: Execute a command with root privileges

🔹 Download Files

• curl <url> -O: Download files using curl

• wget <url> -O <filename>: Download files using wget

🔹 OS Version Check

• cat /etc/*release*: Check the OS version

🔹 Package Management (RPM/YUM)

• rpm -i <package.rpm>: Install a package

• yum install <package>: Install a package using YUM

• yum remove <package>: Uninstall a package

🔹 Service Management

• systemctl start <service>: Start a service

• systemctl stop <service>: Stop a service

• systemctl enable <service>: Enable a service at startup

• systemctl status <service>: Check the service status

These are just a few of the foundational commands I’ve been learning to manage systems more effectively in a DevOps environment. I'm excited to keep progressing and explore more advanced tools and technologies in the coming weeks.

Special thanks to @savinderpuri for sharing valuable insights and inspiring me throughout this journey! 🙏

Looking forward to sharing more of my progress and learning experiences with the community. Let’s keep growing together! 🚀

First up: Linux Basics! Since Linux is the backbone of DevOps, I’ll focus on sharpening my command-line skills, mastering file systems, managing permissions, scripting, and more. Whether automating tasks or managing servers, a strong foundation in Linux is absolutely critical for any DevOps professional.

I’m looking forward to documenting my progress, sharing key insights, and learning along the way. If you’ve been through this journey or have any tips to share, I’d love to hear from you in the comments!

By sharing my experiences, I hope to inspire others starting their DevOps path, just as I’ve been inspired by many along the way. Let’s learn and grow together!

#DevOps #Linux #LearningJourney #TechSkills #CareerGrowth #BootCamp