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#!/bin/bash
# Needs bash for string manipulation
# Copyright (c) 2013, 2014 - bwLehrpool Projekt
# Copyright (c) 2012 - OpenSLX GmbH
#
# This program is free software distributed under the GPL version 2.
# See http://openslx.org/COPYING
#
# If you have any feedback please consult http://openslx.org/feedback and
# send your feedback to feedback@openslx.org
#
# General information about OpenSLX can be found at http://openslx.org
#
# First script for initial ramfs for OpenSLX linux stateless clients
#############################################################################
# Set greeting and add information about the booted system
declare -rg INFILE=/opt/openslx/etc/issue.template
declare -rg TMPFILE=$(mktemp)
declare -rg OUTFILE=/etc/issue
. /opt/openslx/config
# Replace known variables and determine maximum line length
MAX=0
while IFS='' read -r line || [ -n "$line" ]; do
line="${line//"%ip%"/"$SLX_PXE_CLIENT_IP"}"
line="${line//"%hostname%"/"$SLX_HOSTNAME"}"
tst="${line//"%space%"/}"
len=${#tst}
[ "$len" -gt "$MAX" ] && MAX=$len
echo "$line"
done < "$INFILE" > "$TMPFILE"
player=$(< /etc/vmware/config grep -m1 '^product.version' | awk -F= '{print $2}')
kernel=$(uname -r)
system="$(dmidecode -s system-manufacturer | grep -vP "unknown|filled|^#") $(dmidecode -s system-product-name | grep -vP "unknown|filled|^#")"
linkspeed=$(cat /sys/class/net/eth0/speed)
tmpstatus=$(grep -m1 ' /tmp ' /proc/mounts | awk '{print $3}')
if [ -z "$tmpstatus" ] || [ "$tmpstatus" = "tmpfs" ]; then
tmpstatus="RAMDISK"
else
tmpstatus="HDD"
fi
tmpstatus="$(df -P | grep -m1 ' /tmp$' | awk '{printf "%.1f", $2 / 1024 / 1024}')GiB ($tmpstatus)"
cat >> "$TMPFILE" <<EOF
System model: %space% $system
Kernel version: %space% $kernel
Temporary directory: %space% $tmpstatus
Boot server: %space% $SLX_PXE_SERVER_IP
EOF
if [ -n "$linkspeed" ]; then
echo "Link speed: %space% ${linkspeed}MBit" >> "$TMPFILE"
fi
if [ -n "$SLX_SHUTDOWN_SCHEDULE" ]; then
echo "Scheduled shutdown: %space% $SLX_SHUTDOWN_SCHEDULE" >> "$TMPFILE"
fi
if [ -n "$SLX_REBOOT_SCHEDULE" ]; then
echo "Scheduled reboot: %space% $SLX_REBOOT_SCHEDULE" >> "$TMPFILE"
fi
if [ -n "$player" ]; then
echo "VMware version: %space% ${player//'"'/}" >> "$TMPFILE"
fi
echo "" >> "$TMPFILE"
# Fix up spacing for right-aligned text
while IFS='' read -r line || [ -n "$line" ]; do
tst=${line/"%space%"/}
if [ "$(( ${#line} - ${#tst} ))" -eq 7 ]; then
space=
while true; do
tst=${line/"%space%"/"$space"}
if [ "${#tst}" -ge "$MAX" ]; then
line="$tst"
break
fi
space=" $space"
done
fi
echo "$line"
done < "$TMPFILE" > "$OUTFILE"
rm -f -- "$TMPFILE"
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