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authorVadim Rutkovsky <vrutkovs@redhat.com>2018-02-12 11:49:55 +0100
committerVadim Rutkovsky <vrutkovs@redhat.com>2018-02-12 12:35:14 +0100
commit29bd49e4586d73442e5deab53bc02e27eedb0c86 (patch)
tree96049fb61f80e0f8b18dbccb2c175b174870642d /roles/openshift_node/files
parentf18cfa7897d771cb973b9aa28a90bc3575b56f58 (diff)
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origin-dns: make sure cluster.local DNS server is listed first
This would ensure glibc resolver won't discard this server when existing DNS server list is longer than 2. This sed would also update existing configuration, where cluster.local was appended
Diffstat (limited to 'roles/openshift_node/files')
-rwxr-xr-xroles/openshift_node/files/networkmanager/99-origin-dns.sh5
1 files changed, 3 insertions, 2 deletions
diff --git a/roles/openshift_node/files/networkmanager/99-origin-dns.sh b/roles/openshift_node/files/networkmanager/99-origin-dns.sh
index f4e48b5b7..acf3e2f38 100755
--- a/roles/openshift_node/files/networkmanager/99-origin-dns.sh
+++ b/roles/openshift_node/files/networkmanager/99-origin-dns.sh
@@ -116,8 +116,9 @@ EOF
echo "nameserver "${def_route_ip}"" >> ${NEW_RESOLV_CONF}
if ! grep -qw search ${NEW_RESOLV_CONF}; then
echo 'search cluster.local' >> ${NEW_RESOLV_CONF}
- elif ! grep -q 'search.*cluster.local' ${NEW_RESOLV_CONF}; then
- sed -i '/^search/ s/$/ cluster.local/' ${NEW_RESOLV_CONF}
+ elif ! grep -q 'search cluster.local' ${NEW_RESOLV_CONF}; then
+ # cluster.local should be in first three DNS names so that glibc resolver would work
+ sed -i -e 's/^search \(.\+\)\( cluster\.local\)\{0,1\}$/search cluster.local \1/' ${NEW_RESOLV_CONF}
fi
cp -Z ${NEW_RESOLV_CONF} /etc/resolv.conf
fi