Creates system accounts/groups; corresponds to the '-r' option for {user,group}add.
The option is only honored when users/groups are added, not when modified.
This adds two options to the user module: groups and append. groups is
a comma-delimited list of supplementary groups a user should belong to.
If a user is currently a member of a group not listed in groups, the
user will be removed from it. To change this behavior, use append=yes.
This will append the user to the list of supplementary groups and *not*
remove the user from unlisted groups.
This changes the gid option to group. One may provide a primary group
as either a gid or a name. The module will then check to verify that
the group already exists. If the group does not already exist, the
module will fail.
This relies on useradd, usermod, and userdel utilities on the system.
The argument name is required; if state is not provided, present is
assumed. Other options supported for creating or modifying an existing
account: uid, gid, comment, home, shell, and password. If managing the
password, it must already be encrypted. When creating an account, you
can also provide the argument createhome to control whether the home
directory is created. Arguments supported for deleting an account are:
force (remove account even if user is logged in) and remove (remove home
directory).
