Example config file for jekyll-ftp.

_config.yml

name: Your New Jekyll Site
markdown: redcarpet
pygments: true
username: UserName
server_url: ftp.myserver.com
remote_dir: /public_html

How do you set the password?

you'll be prompted by jekyll-ftp. If you do not want to (or cannot) answer the prompt you can provide the password to stdin like

echo 'supersecurepassword' | jekyll-ftp deploy

Sorry but I don't know how to do the stdin file, can you be more explicit in the steps please?

There's really not much to it. If you run jekyll-ftp deploy it will ask (prompt) you for the password to your ftp server (matching the username that you specified in _config.yml). For manual deployments, this should be sufficient.

Only if you intend to run this in an automated manner (e.g. as part of a CI/CD pipeline), you may need a way to bypass the prompt and directly provide the password either by hardcoding the password into the command like echo 'supersecurepassword' | jekyll-ftp deploy or by putting the password into a file somewhere and running cat /path/to/file/with/password | jekyll-ftp deploy.