Are you diving into the world of Kubernetes and looking for some basic commands to kickstart your journey? Well, you're in the right place! In this post, we'll cover a few fundamental commands that will help you navigate and monitor your Kubernetes environment more efficiently.

Checking Pod Logs in Real-time

Understanding what's happening inside your pods is crucial. To stream pod logs, use the following command:

kubectl logs <pod_name> -n <namespace_name> -f

Managing Docker Disk Space

Keeping an eye on your Docker disk space is essential, especially in a collaborative environment. Use the following command to check disk space used by local Docker images:

docker system df

In case your build cache is taking up too much space, consider using:

docker builder prune

On RHEL systems, Docker images are typically located here:

du -sh /var/lib/docker/*

Monitoring Kubernetes Namespace Quota

Ensure you're within your Kubernetes namespace quota by using:

kubectl describe quota -n <namespace_name>

Listing Running Pods

Need to see all the currently running pods in your namespace? Execute:

kubectl get pods -n <namespace_name>

Bonus Tip: Watching Pod Activity in Real-time

For a real-time overview of pod activities, including terminations and new starts, use:

kubectl get pods -n <namespace_name> -w

I hope these commands simplify your Kubernetes journey. Feel free to let me know if you found this helpful or if you have any questions. Happy coding!