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Auto fix dns during build

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Maniack Crudelis 2018-09-22 01:31:50 +02:00 • committed by GitHub
parent 2be3388884
commit 41238598d3
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38
sub_scripts/lxc_build.sh
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@ -119,6 +119,7 @@ sudo iptables -A FORWARD -i $main_iface -o $LXC_BRIDGE -j ACCEPT >> "$LOG_BUILD_
sudo iptables -t nat -A POSTROUTING -s $PLAGE_IP.0/24 -j MASQUERADE >> "$LOG_BUILD_LXC" 2>&1
echo -e "\e[1m> Vérification du contenu du resolv.conf\e[0m" | tee -a "$LOG_BUILD_LXC"
sudo cp -a /var/lib/lxc/$LXC_NAME/rootfs/etc/resolv.conf /var/lib/lxc/$LXC_NAME/rootfs/etc/resolv.conf.origin
if ! sudo cat /var/lib/lxc/$LXC_NAME/rootfs/etc/resolv.conf | grep -q nameserver; then
dnsforce=1 # Le resolv.conf est vide, on force l'ajout d'un dns.
sed -i "s/dnsforce=.*/dnsforce=$dnsforce/" "$pcheck_config"
@ -135,6 +136,43 @@ sudo lxc-start -n $LXC_NAME -d --logfile "$script_dir/lxc_boot.log" >> "$LOG_BUI
sleep 3
sudo lxc-ls -f >> "$LOG_BUILD_LXC" 2>&1
echo -e "\e[1m> Test la configuration dns\e[0m" | tee -a "$LOG_BUILD_LXC"
broken_dns=0
while ! sudo lxc-attach -n $LXC_NAME -- getent hosts debian.org > /dev/null 2>&1
do
echo -e "\e[1m>>> The dns isn't working (Current dns = $(sudo cat /var/lib/lxc/$LXC_NAME/rootfs/etc/resolv.conf | grep nameserver |$
if [ $broken_dns -eq 2 ]
then
echo -e "\e[1m>>>The dns is still broken, use FDN dns\e[0m" | tee -a "$LOG_BUILD_LXC"
echo "nameserver 80.67.169.12" | sudo tee /var/lib/lxc/$LXC_NAME/rootfs/etc/resolv.conf
dnsforce=0
((broken_dns++))
elif [ $dnsforce -eq 0 ]
then
echo -e "\e[1m>>>Force to use the dns from the config file\e[0m" | tee -a "$LOG_BUILD_LXC"
echo "nameserver $dns" | sudo tee /var/lib/lxc/$LXC_NAME/rootfs/etc/resolv.conf
new_dns="$dns"
dnsforce=1
((broken_dns++))
else
echo -e "\e[1m>>>Force to use the default dns\e[0m" | tee -a "$LOG_BUILD_LXC"
sudo cp -a /var/lib/lxc/$LXC_NAME/rootfs/etc/resolv.conf.origin /var/lib/lxc/$LXC_NAME/rootfs/etc/resolv.conf
new_dns="$(sudo cat /var/lib/lxc/$LXC_NAME/rootfs/etc/resolv.conf | grep nameserver | awk '{print $2}')"
dnsforce=0
((broken_dns++))
fi
echo -e "\e[1m>>> Try to use the dns address $new_dns\e[0m" | tee -a "$LOG_BUILD_LXC"
# Change the value of dnsforce into the config file
sed -i "s/dnsforce=.*/dnsforce=$dnsforce/" "$pcheck_config"
if [ $broken_dns -eq 3 ]; then
# Break the loop if all the possibilities have been tried.
break
fi
done
echo -e "\e[1m> Update et install aptitude sudo git\e[0m" | tee -a "$LOG_BUILD_LXC"
sudo lxc-attach -n $LXC_NAME -- apt-get update
sudo lxc-attach -n $LXC_NAME -- apt-get install -y aptitude sudo git ssh openssh-server