Steps to create a POD with labels using KUBECTL and YAML

In this blog, we will show you the steps to create a POD with labels using KUBECTL and YAML file in your environment.

REQUIREMENTS

• 2 Node Cluster ( 1 Master VM with 2 Nodes)

• Kubernetes Components

INFRASTRUCTURE OVERVIEW

• We have already installed and configured the 2 Node cluster in our demo environment.

• Please check the URL https://www.assistanz.com/steps-to-install-kubernetes-cluster-manually-using-centos-7/ for more information.

CREATING POD WITH LABELS USING KUBECTL

• Log into the master server through putty.

• use the below command to create a pod with labels.

Syntax: kubectl run --image= --port= --labels="," --generator=run-pod/v1 Example: kubectl run lab-pod --image=nginx --port=80 --labels="app=web,env=dev" --generator=run-pod/v1

• The command executed successfully.

• After few seconds, the POD will be in running state.

• you can verify the label details using the describe command.

kubectl describe pod lab-pod

CREATING POD WITH LABELS USING YAML

• Create a YAML file and paste the below coding.

apiVersion: v1 kind: Pod metadata:     name: new-pod     labels:        app: web        env: test spec:      containers:         - name: test-cont           image: nginx

• Save and close the file.

• Use the below command to create a POD using the YAML file.

• Command executed successfully.

• After few seconds, the POD will be in running state.

LISTING THE POD LABELS

• We can list the all pod labels using this command.

kubectl get pods --show-labels

• We can also use the label selector to filter the required pods.

kubectl get pods -l env=test

CREATE A NEW LABEL FOR A POD

• use the below command to create a new label for a pod.

Syntax: kubectl label