[Fwd: Re: [et-mgmt-tools] Cobbler, Cheetah and scripts in KS files]
Aaron Lippold
lippold at gmail.com
Mon Jun 11 16:54:37 UTC 2007
/s/When cheetah naturally/When I don't escape the ${var} cheetah/g
:)
On 6/11/07, Aaron Lippold <lippold at gmail.com> wrote:
> Hi,
>
> Sorry I had to leave the desk for a bit.
>
> Ya it is supposed to be Bash. Which I am sure is the issue but a lot of
> my developers are bash folks not python.
>
> I posted the section that seems to be giving python / cheetah fits.
>
> When I escape the ${var} it says end line expected. When cheetah
> naturally complains because it does like the var defn.
>
> hmmmm.
>
> thoughts?
>
> Thanks,
>
> Aaron
>
> On 6/11/07, Michael DeHaan <mdehaan at redhat.com> wrote:
> > IRC log...
> >
> > <aaronlippold> I found that if I just copy the file to the web sever and
> > reference it with kickstart=http://server/file then it doesn't parse the
> > ks file. This is a workaround but I would still like to know how to do
> > this correctly :)
> > * rharrison (i=rharriso at nat/cisco/x-a6ceb7953d81c5fc) has joined #cobbler
> > <aaronlippold> google doesn't seem to have an answer for why a X=bla and
> > then ref X with \${X} would make the cheetah parser is throwing a ,
> > 'Line ending expected', exception.
> > <aaronlippold> throw an error ... sorry
> > * timverhoeven (i=timverho at nat/ibm/x-78684106c698f2d3) has left #cobbler
> > <mpdehaan> aaronlippold, hi
> > <mpdehaan> aaronlippold, yes, http:// kickstarts do not parse, there is
> > a reason for this
> > <mpdehaan> suppose you want to use a kickstart file straight out of RHN,
> > for instance, via URL...
> > <mpdehaan> or if the kickstart is a file another admin maintains
> > <mpdehaan> so they evaluate only when they are stored on the filesystem
> > as templates, not whole kickstart files
> > <mpdehaan> aaronlippold, hmm, perhaps you could post an example to the
> > Cheetah list
> > <mpdehaan> ah,
> > <mpdehaan> so is \${X} supposed to reference a Cheetah var? With
> > escaping the "X" you won't
> > <mpdehaan> I mean, the $
> > <mpdehaan> The reason you escape \$ is to make sure they pass through to
> > the kickstart file as $
> > <mpdehaan> Unless that's supposed to be bash code
> > <mpdehaan> aaronlippold, ping?
> >
> >
> >
> >
> >
> > ---------- Forwarded message ----------
> > From: "Aaron Lippold" <lippold at gmail.com>
> > To: "Fedora/Linux Management Tools" <et-mgmt-tools at redhat.com>
> > Date: Mon, 11 Jun 2007 15:30:41 +0200
> > Subject: Re: [et-mgmt-tools] Cobbler, Cheetah and scripts in KS files
> > Actually, the error is 'Line ending expected'
> >
> > Aaron
> >
> > On 6/11/07, Aaron Lippold <lippold at gmail.com> wrote:
> > > Hi,
> > >
> > > When I tried that I got an 'end of line expected' now.
> > >
> > > Here is the code that I am trying to use in my ks file.
> > >
> > > FSTAB=/etc/fstab
> > > SED=/bin/sed
> > > # nosuid on /home
> > > if [ $(grep " \/home " ${FSTAB} | grep -c "nosuid") -eq 0 ]; then
> > > MNT_OPTS=$(grep " \/home " ${FSTAB} | awk '{print $4}')
> > > ${SED} -i "s/\( \/home.*${MNT_OPTS}\)/\1,nosuid/" ${FSTAB}
> > > fi
> > >
> > > # nosuid on /sys
> > > if [ $(grep " \/sys " ${FSTAB} | grep -c "nosuid") -eq 0 ]; then
> > > MNT_OPTS=$(grep " \/sys " ${FSTAB} | awk '{print $4}')
> > > ${SED} -i "s/\( \/sys.*${MNT_OPTS}\)/\1,nosuid/" ${FSTAB}
> > > fi
> > >
> > > # nosuid on /boot
> > > if [ $(grep " \/boot " ${FSTAB} | grep -c "nosuid") -eq 0 ]; then
> > > MNT_OPTS=$(grep " \/boot " ${FSTAB} | awk '{print $4}')
> > > ${SED} -i "s/\( \/boot.*${MNT_OPTS}\)/\1,nosuid/" ${FSTAB}
> > > fi
> > >
> > > # nodev on /usr
> > > if [ $(grep " \/usr " ${FSTAB} | grep -c "nodev") -eq 0 ]; then
> > > MNT_OPTS=$(grep " \/usr " ${FSTAB} | awk '{print $4}')
> > > ${SED} -i "s/\( \/usr.*${MNT_OPTS}\)/\1,nodev/" ${FSTAB}
> > > fi
> > >
> > > #nodev on /home
> > > if [ $(grep " \/home " ${FSTAB} | grep -c "nodev") -eq 0 ]; then
> > > MNT_OPTS=$(grep " \/home " ${FSTAB} | awk '{print $4}')
> > > ${SED} -i "s/\( \/home.*${MNT_OPTS}\)/\1,nodev/" ${FSTAB}
> > > fi
> > >
> > > # nodev on /usr
> > > if [ $(grep " \/usr " ${FSTAB} | grep -c "nodev") -eq 0 ]; then
> > > MNT_OPTS=$(grep " \/usr " ${FSTAB} | awk '{print $4}')
> > > ${SED} -i "s/\( \/usr.*${MNT_OPTS}\)/\1,nodev/" ${FSTAB}
> > > fi
> > >
> > > # nodev on /usr/local
> > > if [ $(grep " \/usr\/local " ${FSTAB} | grep -c "nodev") -eq 0 ]; then
> > > MNT_OPTS=$(grep " \/usr\/local " ${FSTAB} | awk '{print $4}')
> > > ${SED} -i "s/\( \/usr\/local.*${MNT_OPTS}\)/\1,nodev/" ${FSTAB}
> > > fi
> > >
> > > # nodev on /tmp
> > > if [ $(grep " \/tmp " ${FSTAB} | grep -c "nodev") -eq 0 ]; then
> > > MNT_OPTS=$(grep " \/tmp " ${FSTAB} | awk '{print $4}')
> > > ${SED} -i "s/\( \/tmp.*${MNT_OPTS}\)/\1,nodev/" ${FSTAB}
> > > fi
> > >
> > > # nodev on /var
> > > if [ $(grep " \/var " ${FSTAB} | grep -c "nodev") -eq 0 ]; then
> > > MNT_OPTS=$(grep " \/var " ${FSTAB} | awk '{print $4}')
> > > ${SED} -i "s/\( \/var.*${MNT_OPTS}\)/\1,nodev/" ${FSTAB}
> > > fi
> > >
> > > Thanks,
> > >
> > > Aaron
> > >
> > > On 6/8/07, Michael DeHaan <mdehaan at redhat.com> wrote:
> > > > Aaron Lippold wrote:
> > > > > Hi All,
> > > > >
> > > > > I am having issues with cobbler and importing a ks file of mine. All
> > > > > is well with the simple parts of the %post section, but when I get to
> > > > > a bit of scripting, the Cheetah parser complains at '" \/home "
> > > > > ${FSTAB} ' etc.
> > > > >
> > > > > How can I escape this section or something?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Aaron
> > > >
> > > > Dollar signs need to be escaped with \$ since Cheetah is viewing the
> > > > shell invocations as Cheetah code.
> > > >
> > > > This is not true of something like $foosball, where it will just say as
> > > > "$foosball" if there is no key, but for something like ${foosball}, then
> > > > yes, it must be escaped.
> > > >
> > > > Unfortunate, I agree. If anyone has any suggestions on better
> > > > templating libraries that don't require something heinous like Kid's
> > > > XML, I'm all ears. Templating systems
> > > > all appear to have their ups and downs, which is apparently why everyone
> > > > seems to write their own. That's an option too, but I'm trying to not
> > > > go there :)
> > > >
> > > > --Michael
> > > >
> > > >
> > > > _______________________________________________
> > > > et-mgmt-tools mailing list
> > > > et-mgmt-tools at redhat.com
> > > > https://www.redhat.com/mailman/listinfo/et-mgmt-tools
> > > >
> > >
> >
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> > et-mgmt-tools at redhat.com
> > https://www.redhat.com/mailman/listinfo/et-mgmt-tools
> >
> >
>
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