[Zope] DirectoryStorage & ZEO... how?

Thu, 1 May 2003 07:11:51 +0900

Well, guess it's a bit more than that when it comes to ZSS permissions.=20

Here's some excerpts from the RPM spec file I built for ZEO storage =
server.=20

NeoPortal User (nportal) is the user under which I run ZEO and stuff. I
added comments here and there, but if you're familiar with RPM specs, =
you
won't have any difficulties figuring this out.

------------- excerpts from ZEO server RPM spec -------------
%pre

# script run before installing stuff
# neoportal_user is a macro referring to the username globally =
specified:
nportal in this case.

echo "Making group %{neoportal_user}"
/usr/sbin/groupadd -r -f %{neoportal_user}

# /opt/storage/neoportal is where I'm putting dirstorage=20

if [ -z "`id -u %{neoportal_user} 2>/dev/null`" ]; then
        echo "Making user %{neoportal_user}"
        /usr/sbin/useradd -r -d /opt/storage/neoportal -s /bin/false -c
"NeoPortal User" -g %{neoportal_user} %{neoportal_user}
fi

%post

# script run **after** installing stuff

# init.d script

/sbin/chkconfig --add neoportal-server

# clean up pyc's
# /usr/lib/neoportal is INSTANCE_HOME or Zope's home

# I'm revmoing byte codes here created by rpmbuild, this ensures that =
the
first time you run ZEO server, python recompiles everything from scratch
# not a necessary step
find /usr/lib/neoportal -name '*.py[oc]' -exec rm -f '{}' ';'

ln -s /usr/lib/neoportal/DirectoryStorage/DirectoryStorageToolkit
/usr/lib/neoportal/Products

echo "Run \"/etc/init.d/neoportal-server start\" to start NeoPortal =
Server."
>&2

# password snipped out ;-)

echo "The default Client NeoPortal administrator userid is 'neoportal' =
with
password 'blahblahblah'." >&2

# if dirstorage is not there, create one
if [ ! -d "/opt/storage/neoportal/dirstorage" ]; then

    echo "Creating the Directory Storage instance." >&2
    %{python} =
$RPM_BUILD_ROOT%{_libdir}/neoportal/DirectoryStorage/mkds.py
/opt/storage/neoportal/dirstorage Full chunky

# here goes the important part; take a look at permissions I'm giving
   =20
    chown -R root.%{neoportal_user} /opt/storage/neoportal/dirstorage
    chmod -R 770 /opt/storage/neoportal/dirstorage
fi

# I run rsyncd over SSH to sync ZSS and ZEO clients
echo ""
echo "Make sure you run rsyncd daemon."

%files
# default permissions
%defattr(774,root,%{neoportal_user})
%attr(755,root,root) /etc/init.d/neoportal-server   # init script
%attr(755,root,root) %config(noreplace) /etc/rsyncd.conf    # rsyncd =
config
file
%attr(700,root,root) %config(noreplace) /etc/rsyncd.passwd  # rsyncd
passsword
%attr(644,root,root) /etc/logrotate.d/neoportal # log rotation conf
%attr(755,root,root) /var/log/neoportal # log file
%attr(755,root,root) %{_bindir}/*   # bin
%attr(755,root,root) %{_sbindir}/*  # sbin
%{_libdir}/neoportal    # zope's home
%attr(1771,root,%{neoportal_user}) %dir /opt/storage/neoportal  # =
storage
home (parent dir to dirstorage)
%attr(660,root,%{neoportal_user}) %config(noreplace) %verify(not md5 =
size
mtime) /opt/storage/neoportal/*   # dirstorage conf files

Hope this helps. I wasted too much time on those permission problems. I
really hope others wouldn't have to waste as much time due to lack of
relevant docs.

If you see something is not working, check persmissions first.

All the best,
Wankyu Choi
---------------------------------------------------------------
  Wankyu Choi
  CEO/President
  NeoQuest Communications, Inc.
  http://www.zoper.net
  http://www.neoboard.net
---------------------------------------------------------------  =20

-----Original Message-----
From: zope-admin@zope.org [mailto:zope-admin@zope.org] On Behalf Of Paul
Winkler
Sent: Wednesday, April 30, 2003 10:01 PM
To: zope@zope.org
Subject: Re: [Zope] DirectoryStorage & ZEO... how?

On Wed, Apr 30, 2003 at 06:10:27PM +0900, Wankyu Choi wrote:
> Here's how I do it.
>=20
> 1. custom_zodb.py on ZEO Client
(snip)

already had something equivalent, thanks

> 2. start script on ZEO client

(snip)
yup.

> 4. start script on ZEO Storage Server

(snip)

exec python    /usr/lib/zope/ZEO/start.py -u zope -D -p 8888 -S
> 1=3D$ZOPE_HOME/zeo_custom_zodb:Storage  \

ok, that's what i thought the -S syntax was, though i wasn't sure about =
the
"1=3D"

> 4. zeo_custom_zodb.py on ZSS
(snip)

aha! for some daft reason i thought that custom_zodb was a magic name. i =
was
wondering how on earth to combine the client and server setup in one
custom_zodb... the answer is, "don't" :)

> You should sudo to the user ZEO expects ( not root ): create a user=20
> for the sole purpose of running ZEO. If you try to run ZEO as root or=20
> do not sudo to the ZEO user, you'd end up with ZEO clients waiting=20
> forever for answers from
> ZEO: that is, they'll just hang and you won't know what's happening =
since
> ZEO logs nothing about this weirdness even with
"STUPID_LOG_SEVERITY=3D-300".
> I wasted more than a week to figure out what was going on.=20

eek!  thanks to your message i spent only a few minutes fiddling with
permissions.  well, actually "find . -exec chown zope {} \;" took quite =
a
long time in my directorystorage ;-)

> Hope this helps.

you rock!

i'm editing your message into a doc to send to Toby which i hope he'll
consider including with the DirectoryStorage docs.

--=20

Paul Winkler
home:  http://www.slinkp.com
"Muppet Labs, where the future is made - today!"

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