Creating Pods

Creating Pods is the first step in running applications on Kubernetes. You can create Pods imperatively with kubectl run or declaratively with YAML files. This chapter covers both methods.

Method 1: Imperative with kubectl run

Quickly create a single Pod from the command line:

kubectl run my-nginx --image=nginx --restart=Never

--restart=Never ensures a Pod is created instead of a Deployment. Check it:

kubectl get pods

Delete it:

kubectl delete pod my-nginx

Method 2: Declarative with YAML

Create a YAML file (e.g., my-pod.yaml):

apiVersion: v1
kind: Pod
metadata:
  name: my-nginx
spec:
  containers:
  - name: nginx
    image: nginx:latest
    ports:
    - containerPort: 80

Apply it:

kubectl apply -f my-pod.yaml

This method is preferred because the file can be version‑controlled.

Viewing Pod Details

See pod status:

kubectl get pods -o wide

Get detailed info:

kubectl describe pod my-nginx

Port Forwarding

To access a Pod locally, you can forward a port:

kubectl port-forward pod/my-nginx 8080:80

Now open http://localhost:8080 to see Nginx.

Two Minute Drill

Imperative: kubectl run pod-name --image=image --restart=Never.
Declarative: YAML file + kubectl apply -f file.yaml.
View pods: kubectl get pods; details: kubectl describe pod.
Access pod: kubectl port-forward pod/pod-name local:container.

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Creating Pods

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