fix nxos_aaa_server issues (ansible#38117)

lib/ansible/modules/network/nxos/nxos_aaa_server.py

@@ -39,7 +39,6 @@
       stored as encrypted (type 7).
     - Changes to the global AAA server key with encrypt_type=0
       are not idempotent.
-    - If global AAA server key is not found, it's shown as "unknown"
     - state=default will set the supplied parameters to their default values.
       The parameters that you want to default must also be set to default.
       If global_key=default, the global key will be removed.
@@ -51,7 +50,7 @@
         choices: ['radius', 'tacacs']
     global_key:
         description:
-            - Global AAA shared secret.
+            - Global AAA shared secret or keyword 'default'.
     encrypt_type:
         description:
             - The state of encryption applied to the entered global key.
@@ -60,14 +59,15 @@
     deadtime:
         description:
             - Duration for which a non-reachable AAA server is skipped,
-              in minutes. Range is 1-1440. Device default is 0.
+              in minutes or keyword 'default.
+              Range is 1-1440. Device default is 0.
     server_timeout:
         description:
-            - Global AAA server timeout period, in seconds. Range is 1-60.
-              Device default is 5.
+            - Global AAA server timeout period, in seconds or keyword 'default.
+              Range is 1-60. Device default is 5.
     directed_request:
         description:
-            - Enables direct authentication requests to AAA server.
+            - Enables direct authentication requests to AAA server or keyword 'default'
               Device default is disabled.
         choices: ['enabled', 'disabled']
     state:
@@ -116,7 +116,14 @@
 from ansible.module_utils.basic import AnsibleModule
 
 
-def execute_show_command(command, module, command_type='cli_show'):
+PARAM_TO_DEFAULT_KEYMAP = {
+    'server_timeout': '5',
+    'deadtime': '0',
+    'directed_request': 'disabled',
+}
+
+
+def execute_show_command(command, module):
     command = {
         'command': command,
         'output': 'text',
@@ -142,8 +149,7 @@ def get_aaa_server_info(server_type, module):
     global_key_command = 'show run | sec {0}'.format(server_type)
     aaa_regex = r'.*{0}-server\skey\s\d\s+(?P<key>\S+).*'.format(server_type)
 
-    server_body = execute_show_command(
-        server_command, module, command_type='cli_show_ascii')[0]
+    server_body = execute_show_command(server_command, module)[0]
 
     split_server = server_body.splitlines()
 
@@ -154,30 +160,25 @@ def get_aaa_server_info(server_type, module):
         elif line.startswith('deadtime'):
             aaa_server_info['deadtime'] = line.split(':')[1]
 
-    request_body = execute_show_command(
-        request_command, module, command_type='cli_show_ascii')[0]
-    aaa_server_info['directed_request'] = request_body.replace('\n', '')
+    request_body = execute_show_command(request_command, module)[0]
 
-    key_body = execute_show_command(
-        global_key_command, module, command_type='cli_show_ascii')[0]
+    if bool(request_body):
+        aaa_server_info['directed_request'] = request_body.replace('\n', '')
+    else:
+        aaa_server_info['directed_request'] = 'disabled'
+
+    key_body = execute_show_command(global_key_command, module)[0]
 
     try:
         match_global_key = re.match(aaa_regex, key_body, re.DOTALL)
         group_key = match_global_key.groupdict()
         aaa_server_info['global_key'] = group_key["key"].replace('\"', '')
     except (AttributeError, TypeError):
-        aaa_server_info['global_key'] = 'unknown'
+        aaa_server_info['global_key'] = None
 
     return aaa_server_info
 
 
-def set_aaa_server_global_key(encrypt_type, key, server_type):
-    if not encrypt_type:
-        encrypt_type = ''
-    return '{0}-server key {1} {2}'.format(
-        server_type, encrypt_type, key)
-
-
 def config_aaa_server(params, server_type):
     cmds = []
 
@@ -215,13 +216,13 @@ def default_aaa_server(existing, params, server_type):
     global_key = params.get('global_key')
     existing_key = existing.get('global_key')
 
-    if deadtime is not None:
+    if deadtime is not None and existing.get('deadtime') != PARAM_TO_DEFAULT_KEYMAP['deadtime']:
         cmds.append('no {0}-server deadtime 1'.format(server_type))
 
-    if server_timeout is not None:
+    if server_timeout is not None and existing.get('server_timeout') != PARAM_TO_DEFAULT_KEYMAP['server_timeout']:
         cmds.append('no {0}-server timeout 1'.format(server_type))
 
-    if directed_request is not None:
+    if directed_request is not None and existing.get('directed_request') != PARAM_TO_DEFAULT_KEYMAP['directed_request']:
         cmds.append('no {0}-server directed-request'.format(server_type))
 
     if global_key is not None and existing_key is not None:

test/integration/targets/nxos_aaa_server/tests/common/radius.yaml

@@ -73,7 +73,7 @@
   - assert: *false
 
   - name: "Remove radius server configuration"
-    nxos_aaa_server:
+    nxos_aaa_server: &rad_def
       server_type: radius
       deadtime: default
       server_timeout: default
@@ -85,6 +85,12 @@
 
   - assert: *true
 
+  - name: "Check Idempotence"
+    nxos_aaa_server: *rad_def
+    register: result
+
+  - assert: *false
+
   rescue:
 
   - debug: msg="connection={{ ansible_connection }} nxos_aaa_server failure detected"
@@ -94,4 +100,4 @@
     nxos_aaa_server: *remove
     register: result
 
-  - debug: msg="END connection={{ ansible_connection }} nxos_aaa_server radius.yaml sanity test"  
+- debug: msg="END connection={{ ansible_connection }} nxos_aaa_server radius.yaml sanity test"

test/integration/targets/nxos_aaa_server/tests/common/tacacs.yaml

@@ -79,11 +79,24 @@
   - assert: *false
 
   - name: "Remove tacacs server configuration"
-    nxos_aaa_server: *remove
+    nxos_aaa_server: &tac_def
+      server_type: tacacs
+      deadtime: default
+      server_timeout: default
+      global_key: default
+      directed_request: default
+      state: default
+      provider: "{{ connection }}"
     register: result
 
   - assert: *true
 
+  - name: "Check Idempotence"
+    nxos_aaa_server: *tac_def
+    register: result
+
+  - assert: *false
+
   rescue:
 
   - debug: msg="connection={{ ansible_connection }} nxos_aaa_server failure detected"
@@ -100,4 +113,4 @@
       state: disabled
       provider: "{{ connection }}"
 
-  - debug: msg="END connection={{ ansible_connection }} nxos_aaa_server tacacs.yaml sanity test"  
+- debug: msg="END connection={{ ansible_connection }} nxos_aaa_server tacacs.yaml sanity test"