[debian-lan-devel] [debian-lan] 03/03: Make the dhcpd commit handler idempotent

[Afif Elghraoui]

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afif pushed a commit to branch experimental
in repository debian-lan.

commit 6227ed1aad761eb058d274ff4902ec0dde55ad51
Author: Afif Elghraoui <afif at debian.org>
Date:   Sat Nov 19 23:40:49 2016 -0800

    Make the dhcpd commit handler idempotent
    
    The `on commit` code executes every time the host binds or
    rebinds its address. We only need to initialize the PXE configuration
    when the address is first assigned.
---
 fai/config/files/usr/local/sbin/debian-lan/SERVER_A | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/fai/config/files/usr/local/sbin/debian-lan/SERVER_A b/fai/config/files/usr/local/sbin/debian-lan/SERVER_A
index 1b7ab12..ad0aca8 100755
--- a/fai/config/files/usr/local/sbin/debian-lan/SERVER_A
+++ b/fai/config/files/usr/local/sbin/debian-lan/SERVER_A
@@ -303,6 +303,12 @@ case $COMMAND in
     chboot)
 	MACHINE=$1
 	IP=$2
+	pxecfg=$(printf '%02X%02X%02X%02X' $(echo $IP | tr '.' ' '))
+	pxeroot=/srv/tftp/fai/pxelinux.cfg
+	if [ -f $pxeroot/$pxecfg ] || [ -f $pxeroot/$pxecfg.disable ]
+	then
+	    exit 0
+	fi
 	NAME=${MACHINE//[0-9]/}
 	LOG=/var/log/chboot.log
 	. /etc/fai/nfsroot.conf

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