Fix ios_user issues (#44904)

* Fix ios_user issues

* Modify regex and fix unittests

lib/ansible/modules/network/ios/ios_user.py

@@ -178,7 +178,6 @@ commands:
 from copy import deepcopy
 
 import re
-import json
 import base64
 import hashlib
 
@@ -234,20 +233,22 @@ def map_obj_to_commands(updates, module):
 
     def add_ssh(command, want, x=None):
         command.append('ip ssh pubkey-chain')
-        command.append(' no username %s' % want['name'])
         if x:
             command.append('username %s' % want['name'])
             command.append('key-hash %s' % x)
             command.append('exit')
+        else:
+            command.append('no username %s' % want['name'])
         command.append('exit')
 
     for update in updates:
         want, have = update
 
         if want['state'] == 'absent':
-            commands.append(user_del_cmd(want['name']))
+            if have['sshkey']:
                 add_ssh(commands, want)
-            continue
+            else:
+                commands.append(user_del_cmd(want['name']))
 
         if needs_update(want, have, 'view'):
             add(commands, want, 'view %s' % want['view'])
@@ -292,7 +293,7 @@ def parse_privilege(data):
 def map_config_to_obj(module):
     data = get_config(module, flags=['| section username'])
 
-    match = re.findall(r'^username (\S+)', data, re.M)
+    match = re.findall(r'(?:^(?:u|\s{2}u))sername (\S+)', data, re.M)
     if not match:
         return list()
 
@@ -450,12 +451,6 @@ def main():
 
     result['commands'] = commands
 
-    # the ios cli prevents this by rule so capture it and display
-    # a nice failure message
-    for cmd in commands:
-        if 'no username admin' in cmd:
-            module.fail_json(msg='cannot delete the `admin` account')
-
     if commands:
         if not module.check_mode:
             load_config(module, commands)

test/integration/targets/ios_user/tests/cli/basic.yaml

@@ -80,5 +80,5 @@
     that:
       - 'result.changed == true'
       - '"no username ansibletest1" in result.commands[0]["command"]'
-      - '"no username ansibletest2" in result.commands[4]["command"]'
-      - '"no username ansibletest3" in result.commands[8]["command"]'
+      - '"no username ansibletest2" in result.commands[1]["command"]'
+      - '"no username ansibletest3" in result.commands[2]["command"]'

test/units/modules/network/ios/test_ios_user.py

@@ -61,10 +61,7 @@ class TestIosUserModule(TestIosModule):
             {
                 "command": "no username ansible", "answer": "y", "newline": False,
                 "prompt": "This operation will remove all username related configurations with same name",
-            },
-            'ip ssh pubkey-chain',
-            ' no username ansible',
-            ' exit'
+            }
         ]
 
         result_cmd = []
@@ -124,7 +121,6 @@ class TestIosUserModule(TestIosModule):
         set_module_args(dict(name='ansible', sshkey='dGVzdA=='))
         commands = [
             'ip ssh pubkey-chain',
-            ' no username ansible',
             'username ansible',
             'key-hash ssh-rsa 098F6BCD4621D373CADE4E832627B4F6',
             'exit',