apache/cloudstack
1
0
Fork 0
mirror of https://github.com/apache/cloudstack.git synced 2025-10-26 08:42:29 +01:00
Code Issues Packages Projects Releases Wiki Activity

CLOUDSTACK-5986: Make dnsmasq handle dnsmasq.leases when dhcp_release is available

Browse Source 
The original issue has been exposed due to CloudStack VR would modify the
dnsmasq.leases, thus make it unsync with dnsmasq's memory lease.

Make the modification to let dnsmasq handle the lease file if dhcp_release is
available.
This commit is contained in:
Sheng Yang 2014-01-29 16:15:24 -08:00
parent b38c033d5c
commit 121d88743a
2 changed files with 35 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
systemvm/patches/debian/config/etc/init.d/cloud-early-config
View File

@ -750,6 +750,16 @@ setup_dnsmasq() {
sed -i -e "/^dhcp-client-update/d" /etc/dnsmasq.conf
echo 'dhcp-client-update' >> /etc/dnsmasq.conf
fi
command -v dhcp_release > /dev/null 2>&1
no_dhcp_release=$?
if [ $no_dhcp_release -eq 0 -a -z "$ETH0_IP6" ]
then
echo 1 > /var/cache/cloud/dnsmasq_managed_lease
sed -i -e "/^leasefile-ro/d" /etc/dnsmasq.conf
else
echo 0 > /var/cache/cloud/dnsmasq_managed_lease
fi
}
setup_sshd(){

53
systemvm/patches/debian/config/opt/cloud/bin/edithosts.sh
View File

@ -80,8 +80,7 @@ fi
grep "redundant_router=1" /var/cache/cloud/cmdline > /dev/null
no_redundant=$?
command -v dhcp_release > /dev/null 2>&1
no_dhcp_release=$?
dnsmasq_managed_lease=`cat /var/cache/cloud/dnsmasq_managed_lease`
wait_for_dnsmasq () {
local _pid=$(pidof dnsmasq)
@ -96,12 +95,7 @@ wait_for_dnsmasq () {
return 1
}
if [ $ipv6 ]
then
no_dhcp_release=1
fi
if [ $no_dhcp_release -eq 0 ]
if [ $dnsmasq_managed_lease ]
then
#release previous dhcp lease if present
logger -t cloud "edithosts: releasing $ipv4"
@ -145,27 +139,30 @@ then
fi
fi
#delete leases to supplied mac and ip addresses
if [ $ipv4 ]
if [ $dnsmasq_managed_lease -eq 0 ]
then
sed -i /$mac/d $DHCP_LEASES
sed -i /"$ipv4 "/d $DHCP_LEASES
fi
if [ $ipv6 ]
then
sed -i /$duid/d $DHCP_LEASES
sed -i /"$ipv6 "/d $DHCP_LEASES
fi
sed -i /"$host "/d $DHCP_LEASES
#delete leases to supplied mac and ip addresses
if [ $ipv4 ]
then
sed -i /$mac/d $DHCP_LEASES
sed -i /"$ipv4 "/d $DHCP_LEASES
fi
if [ $ipv6 ]
then
sed -i /$duid/d $DHCP_LEASES
sed -i /"$ipv6 "/d $DHCP_LEASES
fi
sed -i /"$host "/d $DHCP_LEASES
#put in the new entry
if [ $ipv4 ]
then
echo "0 $mac $ipv4 $host *" >> $DHCP_LEASES
fi
if [ $ipv6 ]
then
echo "0 $duid $ipv6 $host *" >> $DHCP_LEASES
#put in the new entry
if [ $ipv4 ]
then
echo "0 $mac $ipv4 $host *" >> $DHCP_LEASES
fi
if [ $ipv6 ]
then
echo "0 $duid $ipv6 $host *" >> $DHCP_LEASES
fi
fi
#edit hosts file as well
@ -215,7 +212,7 @@ pid=$(pidof dnsmasq)
if [ "$pid" != "" ]
then
# use SIGHUP to avoid service outage if dhcp_release is available.
if [ $no_dhcp_release -eq 0 ]
if [ $dnsmasq_managed_lease ]
then
kill -HUP $pid
else