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  1. Kubernetes

Kubernetes: Setup Namespaces and PODs

PreviousKubernetes Deployment for App DeploymentNextKubernetes Pod Resource Limiting Guide

How to Create and Manage Kubernetes Namespaces and PODs

Tasks

  • Create a namespace named dev.

  • Deploy a pod named dev-nginx-pod in the dev namespace.

  • Use the nginx image with the latest tag for the pod.

  • Ensure to specify the image tag as nginx:latest.

Steps

  1. First create the namespace named dev.

     kubectl create namespace dev
  2. Manifest with yaml file:

     apiversion: v1
     kind: Namespace
     metadata:
       name: dev

    But I prefer using EOF

     cat <<EOF > namespace-dev.yaml
     apiVersion: v1
     kind: Namespace
     metadata:
       name: dev
     EOF
  3. Create namespace now:

     kubectl create -f namespace-dev.yaml --save-config
  4. Create pods now, nginx-pod.yaml

     apiVersion: v1
     kind: Pod
     metadata:
       name: dev-nginx-pod
       namespace: dev
     spec:
       containers:
       - name: nginx
         image: nginx:latest
  5. Apply the YAML manifest file.

     kubectl apply -f nginx-pod.yaml
  6. Now List Namespaces

     kubectl get namespaces
  7. List Pods in a Namespace

     kubectl get pods -n dev

    #k8s #kubernetes #pods #namespace #happylearning :)