You might need to add users to sudoers but when they elevate to sudo they will be prompted for a password, this process will add the user to sudoers and also allow them to run commands without being prompted for a sudo password.
This works for Linux Ubuntu or Debian
1. Install Sudo (if not currently installed)
apt-get install sudo
2. Edit Sudo configuration
3. Add this line at the end of the configuration file (change sally to the username you are using)
sally ALL=(ALL) NOPASSWD: ALL