What is the difference between config map and secret in kubernetes

Question

Could somebody explain when we already had secrets in kubernetes ,there came the concept of config maps. What's the difference between the two?

Answer 1

Config maps ideally stores application configuration in a plain text format whereas Secrets store sensitive data like password in an encrypted format.

Both config maps and secrets can be used as volume and mounted inside a pod through a pod definition file.

Config map:

        kubectl create configmap myconfigmap
 --from-literal=env=dev

Secret:

echo -n ‘admin’ > ./username.txt
echo -n ‘abcd1234’ ./password.txt
kubectl create secret generic mysecret --from-file=./username.txt --from-file=./password.txt