CentOS - Oct 2008 - creating a user from an RPM package

What wizardry do you guys use in the SPEC file when creating/deleting a
user from an RPM package?

I was going to create a macro like:

%define user(login,uid,gid,name,homedir,shell) \
        echo "$1:x:$2:$3:$4:$5:$6"      >>/etc/passwd; \
        echo "$1:!!:12005:0:99999:7:::" >>/etc/shadow; \
        echo "$1:x:$3:" >>/etc/group; \
        mkdir -p $5; \
        chown $2:$3 $5

and then appropriate sedness and rm's when removing it, but I figure
there has to be a cleaner way, or a builtin as this surely is a
common feature. The RPM guide doesn't seem to mention it, or if it
does, I missed it.

Alternatively, if you could point me to a package or a spec file that
does this, I'd be much obliged.

Thanks

-- 
Spiro Harvey                  Knossos Networks Ltd
021-295-1923                    www.knossos.net.nz

Spiro Harvey wrote:
> Alternatively, if you could point me to a package or a spec file that
> does this, I'd be much obliged.
>From the postifx srpm..
%define postfix_uid    89
%define postfix_user   postfix
%define postfix_gid    89
%define postfix_group  postfix
%define postdrop_group postdrop
%define maildrop_group %{postdrop_group}
%define maildrop_gid   %{POSTDROP_GID}
[..]
%pre
# Add user and groups if necessary
%{_sbindir}/groupadd -g %{maildrop_gid} -r %{maildrop_group} 2>/dev/null
%{_sbindir}/groupadd -g %{postfix_gid} -r %{postfix_group} 2>/dev/null
%{_sbindir}/groupadd -g 12 -r mail 2>/dev/null
%{_sbindir}/useradd -d %{postfix_queue_dir} -s /sbin/nologin -g
%{postfix_group} -G mail -M -r -u %{postfix_uid} %{postfix_user} 2>/dev/null
exit 0

--

I don't see anything that removes the user as part of
rpm removal, though you could just use userdel/groupdel.

nate

On Wed, 2008-10-15 at 16:22 +1300, Spiro Harvey wrote:
> What wizardry do you guys use in the SPEC file when creating/deleting a
> user from an RPM package?
> 
> I was going to create a macro like:
> 
> %define user(login,uid,gid,name,homedir,shell) \
>         echo "$1:x:$2:$3:$4:$5:$6"      >>/etc/passwd; \
>         echo "$1:!!:12005:0:99999:7:::" >>/etc/shadow; \
>         echo "$1:x:$3:" >>/etc/group; \
>         mkdir -p $5; \
>         chown $2:$3 $5
> 
> and then appropriate sedness and rm's when removing it, but I figure
> there has to be a cleaner way, or a builtin as this surely is a
> common feature. The RPM guide doesn't seem to mention it, or if it
> does, I missed it.
> 
> Alternatively, if you could point me to a package or a spec file that
> does this, I'd be much obliged.
You know, you could always use the useradd command...

	-I