[Spacewalk-list] Code Snippet Question

[Josh Preston]

Greg,

You won't be able to use ksmeta data inside of a #raw ... #end raw block the way you are trying to...  The #raw block tells cobbler not to process $variables ... use it mainly when there are tons of shell variables that cobbler should not process.  I'd recommend limiting the use of #raw as much as possible and when you do have to use it, use it to avoid a lot of shell variable escaping.  It might help to think of cobbler as the pre/post script GENERATOR, not the shell interpreter.

For example:

    #raw
    echo $test
    #end raw

is equivalent to:

    echo \$test

Neither of which cobbler would process and would end up as:

    echo $test

in the kickstart script / snippet

--OR --

You could do something like:

    env = $getVar("$env", "")
    #raw
    
    ...
    echo $env
    ...
    
    #end raw

This will declare the variable for the shell, so when your script it running, $env is set and cobbler didn't need to do the substitution.

---

For reference, I use this formula in my snippets so that I can use ksmeta, command line options or cobbler system data (notice the minimal use of #raw):

# 1. if the system's hostname is not set or equals localhost.localdomain or it's set to ip address
#   a. configure the hostname using the kernel command line options
#   b. configure the hostname using cobbler system data
# 2. create our valid /etc/hosts entries

#set $HOSTNAME = $getVar("$hostname", "$hostname")
#set $GATEWAY = $getVar("$gateway", "$gateway")
#set $IP = $getVar("$ip", "$ip")

HOSTNAME="$HOSTNAME"
GATEWAY="$GATEWAY"
IP="$IP"

#if $getVar("$system_name", "") == ""
    #raw
for I in $(cat /proc/cmdline); do
    case "$I" in *=*)
        eval $I; export $I;
    esac;
done
    #end raw
#end if


Josh Preston
Shoe Lover & Unix Admin