Docker: Using –password via the CLI is insecure. Use –password-stdin

According to docker documentation:

To run the docker login command non-interactively, you can set the
--password-stdin flag to provide a password through STDIN. Using
STDIN prevents the password from ending up in the shell’s history, or
log-files.

The following examples read a password from a file, and passes it to the docker login command using STDIN:

$ cat ~/my_password.txt | docker login --username foo --password-stdin

or

$ docker login --username foo --password-stdin < ~/my_password

The following example reads a password from a variable, and passes it to the docker login command using STDIN:

$ echo "$MY_PASSWORD" | docker login --username foo --password-stdin