parse YAML inventory files with ansible-inventory, refs fboender#154

Signed-off-by: Arnold Bechtoldt <arnold.bechtoldt@inovex.de>

src/ansiblecmdb/ansible.py

@@ -103,6 +103,11 @@ def _handle_inventory(self, inventory_path):
             # It's a file and it's executable. Handle as dynamic inventory script
             self.log.debug("{} is a executable. Handle as dynamic inventory script".format(inventory_path))
             self._parse_dyn_inventory(inventory_path)
+        if os.path.isfile(inventory_path) and \
+            (inventory_path.endswith('.yml') or
+             inventory_path.endswith('.yaml')):
+            self.log.debug("{} is a YAML inventory file. Parsing it with ansible-inventory".format(inventory_path))
+            self._parse_ansible_inventory(inventory_path)
         elif os.path.isfile(inventory_path):
             # Static inventory hosts file
             self.log.debug("{} is a file. Handle as static inventory file".format(inventory_path))
@@ -324,6 +329,29 @@ def _parse_dyn_inventory(self, script):
             sys.stderr.write("Exception while executing dynamic inventory script '{0}':\n\n".format(script))
             sys.stderr.write(str(err) + '\n')
 
+    def _parse_ansible_inventory(self, filename):
+        try:
+            proc = subprocess.Popen(["ansible-inventory", '-i', filename, '--list'],
+                                    stdout=subprocess.PIPE,
+                                    stderr=subprocess.PIPE,
+                                    close_fds=True)
+            stdout, stderr = proc.communicate(input)
+            if proc.returncode != 0:
+                sys.stderr.write("ansible-inventory with inventory file '{0}' returned "
+                                 "exitcode {1}\n".format(filename,
+                                                         proc.returncode))
+                for line in stderr:
+                    sys.stderr.write(line)
+
+            dyninv_parser = parser.DynInvParser(stdout.decode('utf8'))
+            for hostname, key_values in dyninv_parser.hosts.items():
+                self.update_host(hostname, key_values)
+        except OSError as err:
+            sys.stderr.write("Exception while executing ansible-inventory with inventory file '{0}':\n\n".format(filename))
+            sys.stderr.write(str(err) + '\n')
+
+
+
     def update_host(self, hostname, key_values, overwrite=True):
         """
         Update a hosts information. This is called by various collectors such