Adding resolver

attributes/default.rb

@@ -104,6 +104,28 @@
 # multi_accept tries to accept() as many connections as possible after nginx
 # gets notification about a new connection.
 default[:nginx][:multi_accept] = "off"
+
+#
+# Configures name servers used to resolve names of upstream servers into addresses, for example:
+#   resolver 127.0.0.1 [::1]:5353;
+# An address can be specified as a domain name or IP address, and an optional port (1.3.1, 1.2.2).
+# If port is not specified, the port 53 is used. Name servers are queried in a round-robin fashion.
+# By default, nginx will look up both IPv4 and IPv6 addresses while resolving. If looking up of IPv6 addresses is not desired,
+# the ipv6=off parameter can be specified.
+# Resolving of names into IPv6 addresses is supported starting from version 1.5.8.
+# By default, nginx caches answers using the TTL value of a response. An optional valid parameter allows overriding it:
+#   resolver 127.0.0.1 [::1]:5353 valid=30s;
+default[:nginx][:resolver] = nil
+
+# Before version 1.1.9, tuning of caching time was not possible, and nginx always cached answers for the duration of 5 minutes.
+#   Syntax:	resolver_timeout time;
+# Default:
+#   resolver_timeout 30s;
+# Context:	http, server, location
+# Sets a timeout for name resolution, for example:
+#   resolver_timeout 5s;
+default[:nginx][:resolver_timeout] = '30s'
+
 #
 # Directive activate or deactivate the usage of sendfile().
 # sendfile() copies data between one file descriptor and another. Because this

templates/default/nginx.conf.erb

@@ -20,6 +20,14 @@ http {
   tcp_nopush            <%= node[:nginx][:tcp_nopush] %>;
   tcp_nodelay           <%= node[:nginx][:tcp_nodelay] %>;
 
+  <%- unless node[:nginx][:resolver].nil? -%>
+  ##
+  # Resolver Settings
+  ##
+  resolver <%= node[:nginx][:resolver] %>;
+  resolver_timeout <%= node[:nginx][:resolver_timeout] %>;
+  <%- end -%>
+
   ##
   # Timeouts
   ##