NagiosGen: Create empty config.xml when missing

This allows new users to get setup more quickly without having to worry
about the tweaking capabilities available in config.xml.

Signed-off-by: Sol Jerome <sol.jerome@gmail.com>

1 files changed, 15 insertions, 1 deletions

diff --git a/src/lib/Bcfg2/Server/Plugins/NagiosGen.py b/src/lib/Bcfg2/Server/Plugins/NagiosGen.py
index d132b0ff4..0c7b1daf7 100644
--- a/src/lib/Bcfg2/Server/Plugins/NagiosGen.py
+++ b/src/lib/Bcfg2/Server/Plugins/NagiosGen.py
@@ -17,7 +17,21 @@ line_fmt = '\t%-32s %s'
 class NagiosGenConfig(Bcfg2.Server.Plugin.SingleXMLFileBacked,
                       Bcfg2.Server.Plugin.StructFile):
     def __init__(self, filename, fam):
-        Bcfg2.Server.Plugin.SingleXMLFileBacked.__init__(self, filename, fam)
+        # create config.xml if missing
+        if not os.path.exists(filename):
+            LOGGER.warning("NagiosGen: %s missing. "
+                           "Creating empty one for you." % filename)
+            f = open(filename, "w")
+            f.write("<NagiosGen></NagiosGen>")
+            f.close()
+
+        try:
+            Bcfg2.Server.Plugin.SingleXMLFileBacked.__init__(self,
+                                                             filename,
+                                                             fam)
+        except OSError:
+            LOGGER.error("NagiosGen: Failed to read configuration file: %s" % err)
+            raise Bcfg2.Server.Plugin.PluginInitError(msg)
         Bcfg2.Server.Plugin.StructFile.__init__(self, filename)