Manage user accounts and user attributes.

# Add the user 'johnd' with a specific uid and a primary group of 'admin'
- user: name=johnd comment="John Doe" uid=1040 group=admin
 
# Add the user 'james' with a bash shell, appending the group 'admins' and 'developers' to the user's groups
- user: name=james shell=/bin/bash groups=admins,developers append=yes
 
# Remove the user 'johnd'
- user: name=johnd state=absent remove=yes
 
# Create a 2048-bit SSH key for user jsmith in ~jsmith/.ssh/id_rsa
- user: name=jsmith generate_ssh_key=yes ssh_key_bits=2048 ssh_key_file=.ssh/id_rsa
 
# added a consultant whose account you want to expire
- user: name=james18 shell=/bin/zsh groups=developers expires=1422403387

http://docs.ansible.com/ansible/user_module.html