sample-conf command added to savanna-manage

Change-Id: Id72022c6a144feab82a0b68d79c42ff60fc6e15a

savanna/cli.py

@@ -14,6 +14,7 @@
 # limitations under the License.
 
 from flask import Flask
+import os
 
 from oslo.config import cfg
 from savanna.openstack.common import log
@@ -62,8 +63,36 @@ class ResetDbCmd(BaseCmd):
                  "gen templates: %s", gen)
 
 
+class SampleConfCmd(BaseCmd):
+    """Generates sample conf"""
+
+    name = 'sample-conf'
+
+    @classmethod
+    def add_argument_parser(cls, subparsers):
+        parser = super(SampleConfCmd, cls).add_argument_parser(subparsers)
+        parser.add_argument('--full', action='store_true')
+        return parser
+
+    @staticmethod
+    def main():
+        possible_topdir = os.path.normpath(
+            os.path.join(os.path.abspath(__file__), os.pardir, os.pardir))
+
+        sample_path = possible_topdir + "/etc/savanna/savanna.conf.sample"
+        if CONF.command.full:
+            sample_path += "-full"
+        try:
+            f = open(sample_path, 'r')
+            print f.read(),
+            f.close()
+        except IOError:
+            print "File '" + sample_path + "' does not exist."
+
+
 CLI_COMMANDS = [
     ResetDbCmd,
+    SampleConfCmd
 ]