Which method is a safe way to provide a username/password combination to an application running as a service in a Docker container?

Which method is a safe way to provide a username/password combination to an application running as a service in a Docker container?
A . encode the value with base64 in a secure DNS CTEXT entry
B. as an environment variable in the Dockerfile
C. Docker environment variable
D. Docker secrets

View Answer

Answer: D

Explanation:

a docker secret is a blob of data, such as a password, SSH private key, SSL certificate, or another piece of data that should not be transmitted over a network or stored unencrypted in a Dockerfile or in your application’s source code