new nos_config module (#44140)

* new nos_config module

* Update cliconf/nos.py to add missing 'end'

lib/ansible/plugins/cliconf/nos.py

@@ -22,9 +22,7 @@ __metaclass__ = type
 import re
 import json
 
-from itertools import chain
-
-from ansible.module_utils._text import to_bytes, to_text
+from ansible.module_utils._text import to_text
 from ansible.module_utils.network.common.utils import to_list
 from ansible.plugins.cliconf import CliconfBase
 
@@ -59,7 +57,7 @@ class Cliconf(CliconfBase):
         return device_info
 
     def get_config(self, source='running', flags=None):
-        if source not in ('running'):
+        if source not in 'running':
             return self.invalid_params("fetching configuration from %s is not supported" % source)
         if source == 'running':
             cmd = 'show running-config'
@@ -71,7 +69,11 @@ class Cliconf(CliconfBase):
         return self.send_command(cmd)
 
     def edit_config(self, command):
-        for cmd in chain(['configure terminal'], to_list(command), ['end']):
+        resp = {}
+        results = []
+        requests = []
+        self.send_command('configure terminal')
+        for cmd in to_list(command):
             if isinstance(cmd, dict):
                 command = cmd['command']
                 prompt = cmd['prompt']
@@ -83,7 +85,15 @@ class Cliconf(CliconfBase):
                 answer = None
                 newline = True
 
-            self.send_command(command, prompt, answer, False, newline)
+            if cmd != 'end' and cmd[0] != '!':
+                results.append(self.send_command(command, prompt, answer, False, newline))
+                requests.append(cmd)
+
+        self.send_command('end')
+
+        resp['request'] = requests
+        resp['response'] = results
+        return resp
 
     def get(self, command, prompt=None, answer=None, sendonly=False):
         return self.send_command(command, prompt=prompt, answer=answer, sendonly=sendonly)