From 3cc5e2e928b982b1750439a58a9fac6e1100129a Mon Sep 17 00:00:00 2001
From: Florian Haas <florian@hastexo.com>
Date: Tue, 9 Jul 2013 22:12:54 +0000
Subject: [PATCH] Add a name resolution facility for hostnames

Make sure that hosts can always resolve each other's names.
For the moment, this simply uses exported /etc/hosts entries.
Less naive implementations could just export the address/hostname
tuples and feed them into a DNS server configuration.
---
 manifests/init.pp           |  2 ++
 manifests/nameresolution.pp | 16 ++++++++++++++++
 manifests/params.pp         |  5 +++++
 3 files changed, 23 insertions(+)
 create mode 100644 manifests/nameresolution.pp

diff --git a/manifests/init.pp b/manifests/init.pp
index c1d5e43..ff95d85 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -18,6 +18,7 @@
 class kickstack ( 
   $fact_prefix   = $kickstack::params::fact_prefix,
   $fact_filename = $kickstack::params::fact_filename,
+  $name_resolution = $kickstack::params::name_resolution,
   $verbose       = $kickstack::params::verbose,
   $debug         = $kickstack::params::debug,
   $database      = $kickstack::params::database,
@@ -57,4 +58,5 @@ class kickstack (
 
   include exportfact
   include openstack::repo
+  include kickstack::nameresolution
 } 
diff --git a/manifests/nameresolution.pp b/manifests/nameresolution.pp
new file mode 100644
index 0000000..d498b74
--- /dev/null
+++ b/manifests/nameresolution.pp
@@ -0,0 +1,16 @@
+class kickstack::nameresolution inherits kickstack {
+
+  case $::kickstack::name_resolution {
+    'hosts': {
+
+      @@host { "$hostname":
+        ip => $ipaddress,
+        comment => "Managed by Puppet",
+        tag => "hostname"
+      }
+
+      Host <<| tag == "hostname" |>> {  }
+    }
+  }
+}
+
diff --git a/manifests/params.pp b/manifests/params.pp
index eff399c..d138385 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -12,6 +12,11 @@ class kickstack::params {
   # * override by setting "kickstack_fact_category"
   $fact_category = pick(getvar("::${variable_prefix}fact_category"), "kickstack")
 
+  # The strategy to use so machines can make their hostnames known to
+  # each other.
+  # * default "hosts" -- manage /etc/hosts
+  $name_resolution = pick(getvar("::${variable_prefix}name_resolution"),"hosts")
+
   # Enables verbose logging globally 
   $verbose = str2bool(pick(getvar("::${variable_prefix}verbose"), 'false'))