Fix nxos_mtu nxapi failure (#30153)

(cherry picked from commit cef7ed0310)

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

@@ -125,14 +125,16 @@ from ansible.module_utils.nxos import load_config, run_commands
 from ansible.module_utils.nxos import nxos_argument_spec, check_args
 from ansible.module_utils.basic import AnsibleModule
 
-def execute_show_command(command, module, command_type='cli_show'):
-    if module.params['transport'] == 'cli':
+def execute_show_command(command, module):
     if 'show run' not in command:
-            command += ' | json'
-        cmds = [command]
-        body = run_commands(module, cmds)
-    elif module.params['transport'] == 'nxapi':
-        cmds = [command]
+        output = 'json'
+    else:
+        output = 'text'
+    cmds = [{
+        'command': command,
+        'output': output,
+    }]
+
     body = run_commands(module, cmds)
     return body
 
@@ -169,7 +171,7 @@ def get_system_mtu(module):
     command = 'show run all | inc jumbomtu'
     sysmtu = ''
 
-    body = execute_show_command(command, module, command_type='cli_show_ascii')
+    body = execute_show_command(command, module)
 
     if body:
         sysmtu = str(body[0].split(' ')[-1])
@@ -237,8 +239,7 @@ def is_default(interface, module):
     command = 'show run interface {0}'.format(interface)
 
     try:
-        body = execute_show_command(
-            command, module, command_type='cli_show_ascii')[0]
+        body = execute_show_command(command, module)[0]
         if body == 'DNE':
             return 'DNE'
         else:

test/integration/targets/nxos_mtu/tests/common/set_mtu.yaml

@@ -1,18 +1,20 @@
 ---
 - debug: msg="START {{ connection.transport }}/set_mtu.yaml"
 
+- set_fact: testint="{{ nxos_int1 }}"
+
 - name: setup
   nxos_config:
     lines:
       - no switchport
       - no mtu
-    parents: interface Ethernet3/1
+    parents: "interface {{ testint }}"
     match: none
     provider: "{{ connection }}"
 
 - name: configure interface mtu
   nxos_mtu:
-    interface: Ethernet3/1
+    interface: "{{ testint }}"
     mtu: 2000
     provider: "{{ connection }}"
   register: result
@@ -23,7 +25,7 @@
 
 - name: verify interface mtu
   nxos_mtu:
-    interface: Ethernet3/1
+    interface: "{{ testint }}"
     mtu: 2000
     provider: "{{ connection }}"
   register: result
@@ -34,7 +36,7 @@
 
 - name: configure invalid (odd) interface mtu
   nxos_mtu:
-    interface: Ethernet3/1
+    interface: "{{ testint }}"
     mtu: 2001
     provider: "{{ connection }}"
   register: result
@@ -46,7 +48,7 @@
 
 - name: configure invalid (large) mtu setting
   nxos_mtu:
-    interface: Ethernet3/1
+    interface: "{{ testint }}"
     mtu: 100000
     provider: "{{ connection }}"
   register: result
@@ -59,7 +61,7 @@
 - name: teardown
   nxos_config:
     lines: no mtu
-    parents: interface Ethernet3/1
+    parents: "interface {{ testint }}"
     match: none
     provider: "{{ connection }}"