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Fix resolvconf

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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>
This commit is contained in:
Bogdan Dobrelya
2016-12-13 15:43:05 +01:00
parent 45135ad3e4
commit 0515814e0c
5 changed files with 16 additions and 19 deletions
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2
roles/kubernetes/preinstall/templates/dhclient_dnsupdate.sh.j2
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@@ -5,7 +5,7 @@
#
if [ $reason = "BOUND" ]; then
if [ -n "$new_domain_search" -o -n "$new_domain_name_servers" ]; then
RESOLV_CONF=$(cat /etc/resolv.conf)
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