connect pod : k -n jenkins exec jenkins-deployment-84f84b6f9c-hcvj7 -it /bin/bash get password : cat /var/jenkins_home/secrets/initialAdminPassword
OR directly execute command : kubectl -n jenkins exec jenkins-deployment-84f84b6f9c-hcvj7 cat /var/jenkins_home/secrets/initialAdminPassword
result .... e62dcf964b924df6bf61cbd42bee3de0
printf $(kubectl get secret --namespace jenkins jenkins -o jsonpath="{.data.jenkins-admin-password}" | base64 --decode);echo