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-rw-r--r--roles/openshift_node_dnsmasq/README.md27
-rw-r--r--roles/openshift_node_dnsmasq/defaults/main.yml6
-rw-r--r--roles/openshift_node_dnsmasq/tasks/network-manager.yml1
-rw-r--r--roles/openshift_node_dnsmasq/templates/origin-dns.conf.j25
4 files changed, 38 insertions, 1 deletions
diff --git a/roles/openshift_node_dnsmasq/README.md b/roles/openshift_node_dnsmasq/README.md
new file mode 100644
index 000000000..4596190d7
--- /dev/null
+++ b/roles/openshift_node_dnsmasq/README.md
@@ -0,0 +1,27 @@
+OpenShift Node DNS resolver
+===========================
+
+Configure dnsmasq to act as a DNS resolver for an OpenShift node.
+
+Requirements
+------------
+
+Role Variables
+--------------
+
+From this role:
+
+| Name | Default value | Description |
+|-----------------------------------------------------|---------------|-----------------------------------------------------------------------------------|
+| openshift_node_dnsmasq_install_network_manager_hook | true | Install NetworkManager hook updating /etc/resolv.conf with local dnsmasq instance |
+
+Dependencies
+------------
+
+* openshift_common
+* openshift_node_facts
+
+License
+-------
+
+Apache License Version 2.0
diff --git a/roles/openshift_node_dnsmasq/defaults/main.yml b/roles/openshift_node_dnsmasq/defaults/main.yml
index ed97d539c..ebcff46b5 100644
--- a/roles/openshift_node_dnsmasq/defaults/main.yml
+++ b/roles/openshift_node_dnsmasq/defaults/main.yml
@@ -1 +1,7 @@
---
+openshift_node_dnsmasq_install_network_manager_hook: true
+
+# lo must always be present in this list or dnsmasq will conflict with
+# the node's dns service.
+openshift_node_dnsmasq_except_interfaces:
+- lo
diff --git a/roles/openshift_node_dnsmasq/tasks/network-manager.yml b/roles/openshift_node_dnsmasq/tasks/network-manager.yml
index dddcfc9da..e5a92a630 100644
--- a/roles/openshift_node_dnsmasq/tasks/network-manager.yml
+++ b/roles/openshift_node_dnsmasq/tasks/network-manager.yml
@@ -5,5 +5,6 @@
dest: /etc/NetworkManager/dispatcher.d/
mode: 0755
notify: restart NetworkManager
+ when: openshift_node_dnsmasq_install_network_manager_hook | default(true) | bool
- meta: flush_handlers
diff --git a/roles/openshift_node_dnsmasq/templates/origin-dns.conf.j2 b/roles/openshift_node_dnsmasq/templates/origin-dns.conf.j2
index ef3ba2880..5c9601277 100644
--- a/roles/openshift_node_dnsmasq/templates/origin-dns.conf.j2
+++ b/roles/openshift_node_dnsmasq/templates/origin-dns.conf.j2
@@ -4,4 +4,7 @@ no-negcache
max-cache-ttl=1
enable-dbus
bind-interfaces
-listen-address={{ openshift.node.dns_ip }}
+{% for interface in openshift_node_dnsmasq_except_interfaces %}
+except-interface={{ interface }}
+{% endfor %}
+# End of config