Kuberenetes: exec: Get bash shell of running container

Using ‘kubectl exec’ command, you can log in to a container.

 

Step 1: Create a definition file to create a Pod.

 

employeeServicePod.yml

apiVersion: v1
kind: Pod
metadata:
  name: employee-service
  labels:
    app: employee-service
    author: krishna
    serviceType: webservice
spec:
  containers:
    - name: employee-service-container
      image: jboss/wildfly

Step 2: Create pod from the definition file.

$kubectl create -f employeeServicePod.yml 
pod/employee-service created

Wait until Pod is in Running state.

$kubectl get pods
NAME               READY   STATUS    RESTARTS   AGE
employee-service   1/1     Running   0          12s

Execute the below command to launch the bash shell of the container.

kubectl exec -it {podName} -c {containerName} -- /bin/bash

 

Execute below command to open bash shell of employee-service-container.

kubectl exec -it employee-service -c employee-service-container -- /bin/bash

$kubectl exec -it employee-service -c employee-service-container -- /bin/bash
[jboss@employee-service ~]$ 
[jboss@employee-service ~]$ pwd
/opt/jboss
[jboss@employee-service ~]$ 
[jboss@employee-service ~]$ ls
wildfly
[jboss@employee-service ~]$ 

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