[et-mgmt-tools] Cobbler reposync cron script

[Adrian Revill]

Just in case anyone needs a script to run cobbler reposync from cron, 
here is one i have written. It runs each repo in turn, and gives each a 
number of tries (10) to over come problems with failing syncs.

#!/bin/bash

TRIES=10 # number of times to try and run reposync
LOGFILE="/var/log/cobbler/cobbler_reposync.log"

function running {
        PID=$(ps ax| awk '/cobbler reposync/ && !/awk/ {print ($1)}')
        if [ -z $PID ]
        then
                log "cobbler reposync is not running"
                return 1
        fi
        log "cobbler reposync is running PID=$PID"
        return 0
}

function log {
        logger -t "COBBLER_REPOSYNC" -- $1
}

function run {
        try=1
        ret=1
        while [ $try -le $TRIES ]
        do
                running
                ok=$?
                if [ $ok -eq 0 ]
                then
                        log "Already running, aborting"
                        break
                fi
                log "Attempt $try for $1"
                cobbler reposync --only=$1 2>&1 >> $LOGFILE
                ret=$?
                if [ $ret -eq 0 ]
                then
                        break
                fi
                log "Attempt $try failed"
                try=$[ $try + 1 ]
        done
        if [ $ret -eq 0 ]
        then
                log "Compleated $1"
        else
                log "Too many trys or already running, giving up on $1"

        fi
}

log "Starting"
mv $LOGFILE $LOGFILE.1

for name in $(awk '/name:/ {print($2)}' /var/lib/cobbler/repos)
do
        run $name
done