manage logs without a framework

manage-logs.conf

# Fnord

description "Manage Fnord remote logs from fnorders"

start on stopped rc RUNLEVEL=[2345]

stop on runlevel [016S]

task

console none

chdir /var/log/fnord

script

######################################################################
# Put an Fnord log rotation script into "$1" that examines a directory
# of log files every "$2" seconds.  The script compresses .log files
# older than "$3" days and deletes compressed .log.gz files older than
# "$4" days.
#
startlogrotate() {
    cat - > "$1" << 'EOF'
#!/bin/sh
#
# /etc/rc.local writes and starts this log rotation script at boot
# time.  Any changes to the script file will not survive a restart.
#
ok=0
test $ok -eq 0 && test "$#" -eq 3                         && ok=1
test $ok -eq 1 && test "$1" -eq "$1" && checkseconds="$1" && ok=2
test $ok -eq 2 && test "$2" -eq "$2" && zipdays="$2"      && ok=3
test $ok -eq 3 && test "$3" -eq "$3" && rmdays="$3"       && ok=4
checkseconds=${checkseconds:-10800} # to record errors
if test $ok -eq 4
then
    cd /var/log/fnord
    for d in consoles fnorder-r???-c??-n??
    do
        if cd "$d" 2>/dev/null
        then
            finder='find . -maxdepth 1 -type f'
            zip=$($finder -mtime +$zipdays -name '*.log' -print)
            rm=$($finder -mtime +$rmdays -name '*.log.gz' -print)
            logger -t "$0" $$ In $d after $zipdays days: gzip $zip
            logger -t "$0" $$ In $d after $rmdays days: rm $rm
            test -n "$zip" && gzip -9v $zip
            test -n "$rm" && rm $rm
            cd - >/dev/null
        fi
        sleep "$checkseconds"
    done
else
    logger -t "$0" $$ Bad arguments to $0: "$@"
    sleep "$checkseconds"
fi
exec "$0" $checkseconds $zipdays $rmdays
EOF
    chmod 744 "$1"
    nohup "$@" </dev/null >/dev/null 2>/dev/null &
}

# Check one fnorder- directory every 6 minutes (360 seconds).
#
startlogrotate /var/log/fnord/rotate.sh 360 1 10

end script