c12s-kubespray/roles/kubernetes/preinstall/templates/dhclient_dnsupdate.sh.j2
Bogdan Dobrelya 0515814e0c Fix resolvconf
Do not repeat options and nameservers in the dhclient hooks.
Do not prepend nameservers for dhclient but supersede and fail back
to the upstream_dns_resolvers then default_resolver. Fixes order of
nameservers placement, which is cluster DNS ip goes always first.

Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
2016-12-13 15:48:53 +01:00

13 lines
484 B
Django/Jinja

#!/bin/sh
#
# Prepend resolver options to /etc/resolv.conf after dhclient`
# regenerates the file. See man (5) resolver for more details.
#
if [ $reason = "BOUND" ]; then
if [ -n "$new_domain_search" -o -n "$new_domain_name_servers" ]; then
RESOLV_CONF=$(cat /etc/resolv.conf | sed -r '/^options (timeout|attempts|ndots).*$/d')
OPTIONS="options timeout:2\noptions attempts:2\noptions ndots:{{ ndots }}"
printf "%b\n" "$RESOLV_CONF\n$OPTIONS" > /etc/resolv.conf
fi
fi