#!/bin/bash
+# Copyright (C) 2016 Ian Kelling
+
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
# Setup dhcp server to point to tftp server,
# and depending on the type, setup the tftp server.
TYPE is one of arch, plain, fai, or : for no pxe server.
HOST makes the pxe server only for that specific host
--h|--help Print help and exit
--- Subsequent arguments are never treated as options
--p Persist. Otherwise, wait for 2 dhcp acks then remove.
-r Don't redeploy fai config.
+-a Wait for 2 dhcp acks, then disable the pxe server after a delay.
+ First ack is for pxe boot, 2nd ack is for os boot. Sometimes
+ on debian, there is a 3rd one shortly after the 2nd. I can't remember
+ exactly why this caused a problem, but I'm hoping the sleep
+ will take care of it.
+-h|--help Print help and exit
+
+
+Note: Uses GNU getopt options parsing style
EOF
exit $1
}
##### begin command line parsing ########
-persist=false
args=()
redep=true
-while [[ $1 ]]; do
+acks=2
+wait=false
+temp=$(getopt -l help hra "$@") || usage 1
+eval set -- "$temp"
+while true; do
case $1 in
- --) shift; break ;;
-h|--help) usage ;;
-r) redep=false; shift ;;
- -p) persist=true; shift ;;
- *) args+=("$1"); shift ;;
+ -a) wait=true; shift ;;
+ --) shift; break ;;
+ *) echo "$0: Internal error!" ; exit 1 ;;
esac
done
-args+=("$@")
-
-read type host <<<"${args[@]}"
+read type host <<<"$@"
if [[ ! $type ]]; then
echo "$0: error: exptected 1 argument of type"
host_tag="tag:$host,"
fi
-case $type in
- :|true) persist=true ;;
-esac
-
##### end command line parsing ########
-sv() {
+e() {
echo "$@"
"$@"
}
echo $line
fi
done < <(ssh wrt logread -f)
- sv sleep 5
+ e sleep 20
}
set-pxe() {
if [[ $type == arch ]]; then arch-pxe-mount; fi"
}
-set-pxe
+if ! $wait && [[ $type != : ]]; then
+ set-pxe
-if [[ $type == fai ]]; then
- if $redep; then
- fai-redep
+ if [[ $type == fai ]]; then
+ if $redep; then
+ fai-redep
+ fi
+ faiserver-enable
fi
- faiserver-enable
fi
-if ! $persist; then
- echo "waiting for 2 dhcp acks then disabling pxe"
- ack-wait 2
+if $wait; then
+ # fai's debian jessie 8.5ish does 2 dhcp requests when booting,
+ # roughly 4 seconds apart. Earlier
+ # versions did just 1. Now testing on a vm, it does 1.
+ # bleh.
+ echo "waiting for $acks dhcp acks then disabling pxe"
+ ack-wait $acks
set-pxe :
- if [[ $type == fai ]]; then
- # fai server can contain sensitive info, so turn it off
- # when it's not in use.
- echo "waiting for 1 dhcp ack then disabling fai server"
- ack-wait 1
- faiserver-disable
- fi
+
+ # previously tried waiting for one more ack then disabling faiserver,
+ # since it can contain sensitive info, so turn it off when not in use,
+ # but disabling that for now as it's inconvenient to clean this
+ # up and run it in the background etc.
+
+ # if [[ $type == fai ]]; then
+ # echo "waiting for 1 dhcp ack then disabling fai server"
+ # ack-wait 1
+ # faiserver-disable
+ # fi
fi