Listing and Inspecting your cluster, pods, services and more.
kubectl cluster-info
review status and roles
kubectl get nodes
Additional information about each node in the cluster.
kubectl get nodes -o wide
Let’s get a list of pods…but there isn’t any running
kubectl get pods
True, but let’s get a list of system pods. A namespace is a way to group resources together.
kubectl get pods –namespace kube-system
Let’s get additional information about each pod.
kubectl get pods –namespace kube-system -o wide
Now let’s get a list of everything that’s running in all namespaces
kubectl get all –all-namespaces | more
Let’s look at the headers in each column. Name, Alias/shortnames, API Group (or where that resource is in the k8s API Path),
Is the resource in a namespace, for example StorageClass issn’t and is available to all namespaces and finally Kind…this is the object type.
kubectl api-resources | head -n 10
We can easily filter using group
kubectl api-resources | grep pod
Explain an indivdual resource in detail
kubectl explain pod | more
kubectl explain pod.spec | more
kubectl explain pod.spec.containers | more
You’ll soon find your favorite alias
kubectl get no
Let’s take a closer look at our nodes using Describe
Check out Name, Taints, Conditions, Addresses, System Info, Non-Terminated Pods, and Events
kubectl describe nodes c1-master1
kubectl describe nodes c1-node1
Ok, so now that we’re tired of typing commands out, let’s enable bash auto-complete of our kubectl commands
sudo apt-get install bash-completion
echo “source <(kubectl completion bash)” >> ~/.bashrc
source ~/.bashrc
kubectl g[tab][tab] po[tab][tab] –all[tab][tab]
kubectl -h | more
kubectl get -h | more
kubectl describe -h | more
I’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked at Cotocus and regularly write about technology, travel, investing, health, product reviews, and digital marketing through my various platforms.
I publish technical articles at DevOps School, travel stories at Holiday Landmark, stock market insights at Stocks Mantra, health and fitness guidance at My Medic Plus, product reviews at TrueReviewNow, and SEO and digital marketing strategies at Wizbrand.
Find Trusted Cardiac Hospitals
Compare heart hospitals by city and services — all in one place.
Explore Hospitals