If you want to add more users to the servers, create a file (e.g. users.yml). Below is an example. Each public ssh key should be on a single line. The users.yml file will need to be passed to ansible-playbook with -e @users.yml.
Warning
All users added in this file will have root access via sudo.
---
users:
- name: user1
enabled: 1
pubkeys:
- ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABA.....
- name: user2
enabled: 1
pubkeys:
- ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAABA......