Write a script to login to Ubuntu server via SSH and add a new user called deploy and give it a password called secret.
Here is a script in Bash that logs in to an Ubuntu server via SSH, adds a new user deploy, and sets a password for it:
#!/bin/bash
# Variables for the remote server login and new user information
user=<username>
server=<server_ip_or_hostname>
new_user=deploy
password=secret
# Connect to the remote server using SSH
ssh $user@$server << EOF
# Switch to the root user
sudo su
# Add the new user
adduser $new_user
# Set the password for the new user
echo "$new_user:$password" | chpasswd
EOF
Replace the placeholders <username>, <server_ip_or_hostname> with the appropriate values for your setup. Then, save the script to a file and make it executable with the chmod +x command. You can then run the script from the terminal.
Note that this script assumes that you have SSH access to the server with a user account that has sudo privileges. Also, be careful when using this script, as it adds a new user and sets a password, which can have security implications. Make sure to test the script in a safe environment before using it in production.