When we built our new Cloud Containers product we had to make some hard decisions to get the best end result. FTP was one of the things that didn’t make the cut due to performance and security concerns.
Don’t worry though, we have built in SFTP support. Nearly all FTP clients support SFTP, and it is becoming the standard connection type in many. It doesn’t have the same security or performance problems that FTP does but it's still just as easy to use. You can find details about setting up SFTP users here.
If for some reason FTP is an absolute requirement for your project on Cloud Containers, please get in touch and we can discuss some potential solutions.