fix nxos_system issues (#40347)

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

@@ -36,14 +36,15 @@ description:
 options:
   hostname:
     description:
-      - Configure the device hostname parameter. This option takes an ASCII string value.
+      - Configure the device hostname parameter. This option takes an ASCII string value
+        or keyword 'default'
   domain_name:
     description:
       - Configures the default domain
         name suffix to be used when referencing this node by its
         FQDN.  This argument accepts either a list of domain names or
-        a list of dicts that configure the domain name and VRF name.  See
+        a list of dicts that configure the domain name and VRF name or
-        examples.
+        keyword 'default'. See examples.
   domain_lookup:
     description:
       - Enables or disables the DNS
@@ -55,17 +56,17 @@ options:
       - Configures a list of domain
         name suffixes to search when performing DNS name resolution.
         This argument accepts either a list of domain names or
-        a list of dicts that configure the domain name and VRF name.  See
+        a list of dicts that configure the domain name and VRF name or
-        examples.
+        keyword 'default'. See examples.
   name_servers:
     description:
       - List of DNS name servers by IP address to use to perform name resolution
         lookups.  This argument accepts either a list of DNS servers or
-        a list of hashes that configure the name server and VRF name.  See
+        a list of hashes that configure the name server and VRF name or
-        examples.
+        keyword 'default'. See examples.
   system_mtu:
     description:
-      - Specifies the mtu, must be an integer.
+      - Specifies the mtu, must be an integer or keyword 'default'.
   state:
     description:
       - State of the configuration
@@ -174,15 +175,26 @@ def map_obj_to_commands(want, have, module):
 
     if state == 'present':
         if needs_update('hostname'):
+            if want['hostname'] == 'default':
+                if have['hostname']:
+                    commands.append('no hostname')
+            else:
                 commands.append('hostname %s' % want['hostname'])
 
-        if needs_update('domain_lookup'):
+        if want.get('domain_lookup') is not None:
+            if have.get('domain_lookup') != want.get('domain_lookup'):
                 cmd = 'ip domain-lookup'
                 if want['domain_lookup'] is False:
                     cmd = 'no %s' % cmd
                 commands.append(cmd)
 
         if want['domain_name']:
+            if want.get('domain_name')[0]['name'] == 'default':
+                if have['domain_name']:
+                    for item in have['domain_name']:
+                        cmd = 'no ip domain-name %s' % item['name']
+                        remove(cmd, commands, item['vrf'])
+            else:
                 for item in difference(have, want, 'domain_name'):
                     cmd = 'no ip domain-name %s' % item['name']
                     remove(cmd, commands, item['vrf'])
@@ -191,6 +203,12 @@ def map_obj_to_commands(want, have, module):
                     add(cmd, commands, item['vrf'])
 
         if want['domain_search']:
+            if want.get('domain_search')[0]['name'] == 'default':
+                if have['domain_search']:
+                    for item in have['domain_search']:
+                        cmd = 'no ip domain-list %s' % item['name']
+                        remove(cmd, commands, item['vrf'])
+            else:
                 for item in difference(have, want, 'domain_search'):
                     cmd = 'no ip domain-list %s' % item['name']
                     remove(cmd, commands, item['vrf'])
@@ -199,6 +217,12 @@ def map_obj_to_commands(want, have, module):
                     add(cmd, commands, item['vrf'])
 
         if want['name_servers']:
+            if want.get('name_servers')[0]['server'] == 'default':
+                if have['name_servers']:
+                    for item in have['name_servers']:
+                        cmd = 'no ip name-server %s' % item['server']
+                        remove(cmd, commands, item['vrf'])
+            else:
                 for item in difference(have, want, 'name_servers'):
                     cmd = 'no ip name-server %s' % item['server']
                     remove(cmd, commands, item['vrf'])
@@ -207,6 +231,10 @@ def map_obj_to_commands(want, have, module):
                     add(cmd, commands, item['vrf'])
 
         if needs_update('system_mtu'):
+            if want['system_mtu'] == 'default':
+                if have['system_mtu']:
+                    commands.append('no system jumbomtu')
+            else:
                 commands.append('system jumbomtu %s' % want['system_mtu'])
 
     return commands
@@ -269,7 +297,7 @@ def parse_name_servers(config, vrf_config, vrfs):
 def parse_system_mtu(config):
     match = re.search(r'^system jumbomtu (\d+)', config, re.M)
     if match:
-        return int(match.group(1))
+        return match.group(1)
 
 
 def map_config_to_obj(module):
@@ -293,11 +321,6 @@ def map_config_to_obj(module):
     }
 
 
-def validate_system_mtu(value, module):
-    if not 1500 <= value <= 9216:
-        module.fail_json(msg='system_mtu must be between 1500 and 9216')
-
-
 def map_params_to_obj(module):
     obj = {
         'hostname': module.params['hostname'],
@@ -346,7 +369,7 @@ def main():
         # { server: <str>; vrf: <str> }
         name_servers=dict(type='list'),
 
-        system_mtu=dict(type='int'),
+        system_mtu=dict(type='str'),
         state=dict(default='present', choices=['present', 'absent'])
     )
 

test/integration/targets/nxos_system/tests/cli/set_name_servers.yaml

@@ -2,7 +2,7 @@
 - debug: msg="START cli/set_name_servers.yaml"
 
 - name: setup
-  nxos_config:
+  nxos_config: &reset
     lines:
       - no ip name-server 1.1.1.1
       - no ip name-server 2.2.2.2
@@ -76,12 +76,25 @@
       - result.commands|length == 1
       - "'no ip name-server 3.3.3.3' in result.commands"
 
+- name: default name server
+  nxos_system: &defns
+    name_servers: default
+  register: result
+
+- assert:
+    that:
+      - result.changed == true
+
+- name: Idempotent check
+  nxos_system: *defns
+  register: result
+
+- assert:
+    that:
+      - result.changed == false
+
 - name: teardown
-  nxos_config:
+  nxos_config: *reset
-    lines:
-      - no ip lookup source-interface
-    match: none
   ignore_errors: yes
-  # FIXME Copied from iosxr, not sure what we need here
 
 - debug: msg="END cli/set_name_servers.yaml"

test/integration/targets/nxos_system/tests/common/sanity.yaml

@@ -4,28 +4,124 @@
   when: ansible_connection == "local"
 
 - block:
+  - name: remove configuration
+    nxos_system: &remove
+      state: absent
+    register: result
+    ignore_errors: yes
+
+  - name: configure domain lookup
+    nxos_system: &dlo
+      domain_lookup: true
+      state: present
+    register: result
+
   - name: configure hostname and domain-name
     nxos_system: &hostname
       hostname: switch
       domain_name: test.example.com
+    register: result
 
-  - name: remove configuration
+  - assert: &true
-    nxos_system:
+      that:
-      state: absent
+        - "result.changed == true"
+
+  - name: Idempotence check
+    nxos_system: *hostname
+    register: result
+
+  - assert: &false
+      that:
+        - "result.changed == false"
 
   - name: configure name servers
-    nxos_system:
+    nxos_system: &ns
       name_servers:
         - 8.8.8.8
         - 8.8.4.4
+    register: result
+
+  - assert: *true
+
+  - name: Idempotence check
+    nxos_system: *ns
+    register: result
+
+  - assert: *false
 
   - name: configure name servers with VRF support
-    nxos_system:
+    nxos_system: &nsv
       name_servers:
         - { server: 8.8.8.8, vrf: management }
         - { server: 8.8.4.4, vrf: management }
+    register: result
+
+  - assert: *true
+
+  - name: Idempotence check
+    nxos_system: *nsv
+    register: result
+
+  - assert: *false
+
+  - name: configure domain lookup1
+    nxos_system: &ndlo
+      domain_lookup: false
+    register: result
+
+  - assert: *true
+
+  - name: Idempotence check
+    nxos_system: *ndlo
+    register: result
+
+  - assert: *false
+
+  - name: configure domain lookup2
+    nxos_system: *dlo
+    register: result
+
+  - assert: *true
+
+  - name: Idempotence check
+    nxos_system: *dlo
+    register: result
+
+  - assert: *false
+
+  - name: configure system mtu
+    nxos_system: &sysmtu
+      system_mtu: 3000
+    register: result
+
+  - assert: *true
+
+  - name: Idempotence check
+    nxos_system: *sysmtu
+    register: result
+
+  - assert: *false
+
+  - name: default configuration
+    nxos_system: &default
+      hostname: default
+      domain_name: default
+      name_servers: default
+      system_mtu: default
+    register: result
+
+  - assert: *true
+
+  - name: Idempotence check
+    nxos_system: *default
+    register: result
+
+  - assert: *false
 
   always:
+  - name: remove configuration
+    nxos_system: *remove
+
   - name: Re-configure hostname
     nxos_system: *hostname
 

test/integration/targets/nxos_system/tests/common/set_hostname.yaml

@@ -6,7 +6,7 @@
 - block:
   - name: setup
     nxos_config:
-      lines: hostname switch
+      lines: "hostname {{ inventory_hostname }}"
       match: none
 
   - name: configure hostname
@@ -30,7 +30,7 @@
   always:
   - name: teardown
     nxos_config:
-      lines: hostname switch
+      lines: "hostname {{ inventory_hostname }}"
       match: none
 
 

test/integration/targets/nxos_system/tests/nxapi/set_name_servers.yaml

@@ -5,7 +5,7 @@
 # nxapi will error if you try and remove a non-existent entry,
 # Therefore we do this as a with_items loop with ignore_errors
 - name: setup
-  nxos_config:
+  nxos_config: &reset
     lines:
       - no ip name-server {{ item }}
     match: none
@@ -82,12 +82,29 @@
       - result.commands|length == 1
       - "'no ip name-server 3.3.3.3' in result.commands"
 
+- name: default name server
+  nxos_system: &defns
+    name_servers: default
+  register: result
+
+- assert:
+    that:
+      - result.changed == true
+
+- name: Idempotent check
+  nxos_system: *defns
+  register: result
+
+- assert:
+    that:
+      - result.changed == false
+
 - name: teardown
-  nxos_config:
+  nxos_config: *reset
-    lines:
+  with_items:
-      - no ip lookup source-interface
+      - 1.1.1.1
-    match: none
+      - 2.2.2.2
+      - 3.3.3.3
   ignore_errors: yes
-  # FIXME Copied from iosxr, not sure what we need here
 
 - debug: msg="END nxapi/set_name_servers.yaml"