nxos_vlan support 2.1 and 2.2

network/nxos/nxos_vlan.py

@@ -28,36 +28,43 @@ extends_documentation_fragment: nxos
 options:
     vlan_id:
         description:
-            - Single VLAN ID.
+            - single vlan id
         required: false
         default: null
     vlan_range:
         description:
-            - A range of VLANs such as I(2-10) or I(2,5,10-15) etc.
+            - range of VLANs such as 2-10 or 2,5,10-15, etc.
         required: false
         default: null
     name:
         description:
-            - The name of VLAN.
+            - name of VLAN
         required: false
         default: null
     vlan_state:
         description:
-            - Manage the VLAN operational state of the VLAN
+            - Manage the vlan operational state of the VLAN
-              (equivalent to state {active | suspend} command.
+              (equivalent to state {active | suspend} command
         required: false
         default: active
         choices: ['active','suspend']
     admin_state:
         description:
-            - Manage the VLAN admin state of the VLAN equivalent
+            - Manage the vlan admin state of the VLAN equivalent
-              to shut/no shut in VLAN config mode.
+              to shut/no shut in vlan config mode
         required: false
         default: up
         choices: ['up','down']
+    mapped_vni:
+        description:
+            - The Virtual Network Identifier (VNI) id that is mapped to the
+              VLAN. Valid values are integer and keyword 'default'.
+        required: false
+        default: null
+        version_added: "2.2"
     state:
         description:
-            - Manage the state of the resource.
+            - Manage the state of the resource
         required: false
         default: present
         choices: ['present','absent']
@@ -65,13 +72,13 @@ options:
 '''
 EXAMPLES = '''
 # Ensure a range of VLANs are not present on the switch
-- nxos_vlan: vlan_range="2-10,20,50,55-60,100-150" host={{ inventory_hostname }} username=cisco password=cisco state=absent transport=nxapi
+- nxos_vlan: vlan_range="2-10,20,50,55-60,100-150" host=68.170.147.165 username=cisco password=cisco state=absent transport=nxapi
 
 # Ensure VLAN 50 exists with the name WEB and is in the shutdown state
-- nxos_vlan: vlan_id=50 host={{ inventory_hostname }} admin_state=down name=WEB transport=nxapi username=cisco password=cisco
+- nxos_vlan: vlan_id=50 host=68.170.147.165 admin_state=down name=WEB transport=nxapi username=cisco password=cisco
 
 # Ensure VLAN is NOT on the device
-- nxos_vlan: vlan_id=50 host={{ inventory_hostname }} state=absent transport=nxapi username=cisco password=cisco
+- nxos_vlan: vlan_id=50 host=68.170.147.165 state=absent transport=nxapi username=cisco password=cisco
 
 
 '''
@@ -99,20 +106,20 @@ proposed:
     returned: always
     type: dict or null
     sample: {"admin_state": "down", "name": "app_vlan",
-            "vlan_state": "suspend"}
+            "vlan_state": "suspend", "mapped_vni": "5000"}
 existing:
     description: k/v pairs of existing vlan or null when using vlan_range
     returned: always
     type: dict
     sample: {"admin_state": "down", "name": "app_vlan",
-             "vlan_id": "20", "vlan_state": "suspend"}
+             "vlan_id": "20", "vlan_state": "suspend", "mapped_vni": ""}
 end_state:
     description: k/v pairs of the VLAN after executing module or null
                  when using vlan_range
     returned: always
     type: dict or null
     sample: {"admin_state": "down", "name": "app_vlan", "vlan_id": "20",
-             "vlan_state": "suspend"}
+             "vlan_state": "suspend", "mapped_vni": "5000"}
 state:
     description: state as sent in from the playbook
     returned: always
@@ -122,7 +129,7 @@ updates:
     description: command string sent to the device
     returned: always
     type: list
-    sample: ["vlan 20", "vlan 55"]
+    sample: ["vlan 20", "vlan 55", "vn-segment 5000"]
 changed:
     description: check to see if a change was made on the device
     returned: always
@@ -131,6 +138,683 @@ changed:
 
 '''
 
+# COMMON CODE FOR MIGRATION
+
+import re
+import time
+import collections
+import itertools
+import shlex
+import json
+
+from ansible.module_utils.basic import AnsibleModule, env_fallback, get_exception
+from ansible.module_utils.basic import BOOLEANS_TRUE, BOOLEANS_FALSE
+from ansible.module_utils.shell import Shell, ShellError, HAS_PARAMIKO
+from ansible.module_utils.netcfg import parse
+from ansible.module_utils.urls import fetch_url
+
+
+DEFAULT_COMMENT_TOKENS = ['#', '!']
+
+class ConfigLine(object):
+
+    def __init__(self, text):
+        self.text = text
+        self.children = list()
+        self.parents = list()
+        self.raw = None
+
+    @property
+    def line(self):
+        line = ['set']
+        line.extend([p.text for p in self.parents])
+        line.append(self.text)
+        return ' '.join(line)
+
+    def __str__(self):
+        return self.raw
+
+    def __eq__(self, other):
+        if self.text == other.text:
+            return self.parents == other.parents
+
+    def __ne__(self, other):
+        return not self.__eq__(other)
+
+def ignore_line(text, tokens=None):
+    for item in (tokens or DEFAULT_COMMENT_TOKENS):
+        if text.startswith(item):
+            return True
+
+def get_next(iterable):
+    item, next_item = itertools.tee(iterable, 2)
+    next_item = itertools.islice(next_item, 1, None)
+    return itertools.izip_longest(item, next_item)
+
+def parse(lines, indent, comment_tokens=None):
+    toplevel = re.compile(r'\S')
+    childline = re.compile(r'^\s*(.+)$')
+
+    ancestors = list()
+    config = list()
+
+    for line in str(lines).split('\n'):
+        text = str(re.sub(r'([{};])', '', line)).strip()
+
+        cfg = ConfigLine(text)
+        cfg.raw = line
+
+        if not text or ignore_line(text, comment_tokens):
+            continue
+
+        # handle top level commands
+        if toplevel.match(line):
+            ancestors = [cfg]
+
+        # handle sub level commands
+        else:
+            match = childline.match(line)
+            line_indent = match.start(1)
+            level = int(line_indent / indent)
+            parent_level = level - 1
+
+            cfg.parents = ancestors[:level]
+
+            if level > len(ancestors):
+                config.append(cfg)
+                continue
+
+            for i in range(level, len(ancestors)):
+                ancestors.pop()
+
+            ancestors.append(cfg)
+            ancestors[parent_level].children.append(cfg)
+
+        config.append(cfg)
+
+    return config
+
+
+class CustomNetworkConfig(object):
+
+    def __init__(self, indent=None, contents=None, device_os=None):
+        self.indent = indent or 1
+        self._config = list()
+        self._device_os = device_os
+
+        if contents:
+            self.load(contents)
+
+    @property
+    def items(self):
+        return self._config
+
+    @property
+    def lines(self):
+        lines = list()
+        for item, next_item in get_next(self.items):
+            if next_item is None:
+                lines.append(item.line)
+            elif not next_item.line.startswith(item.line):
+                lines.append(item.line)
+        return lines
+
+    def __str__(self):
+        text = ''
+        for item in self.items:
+            if not item.parents:
+                expand = self.get_section(item.text)
+                text += '%s\n' % self.get_section(item.text)
+        return str(text).strip()
+
+    def load(self, contents):
+        self._config = parse(contents, indent=self.indent)
+
+    def load_from_file(self, filename):
+        self.load(open(filename).read())
+
+    def get(self, path):
+        if isinstance(path, basestring):
+            path = [path]
+        for item in self._config:
+            if item.text == path[-1]:
+                parents = [p.text for p in item.parents]
+                if parents == path[:-1]:
+                    return item
+
+    def search(self, regexp, path=None):
+        regex = re.compile(r'^%s' % regexp, re.M)
+
+        if path:
+            parent = self.get(path)
+            if not parent or not parent.children:
+                return
+            children = [c.text for c in parent.children]
+            data = '\n'.join(children)
+        else:
+            data = str(self)
+
+        match = regex.search(data)
+        if match:
+            if match.groups():
+                values = match.groupdict().values()
+                groups = list(set(match.groups()).difference(values))
+                return (groups, match.groupdict())
+            else:
+                return match.group()
+
+    def findall(self, regexp):
+        regexp = r'%s' % regexp
+        return re.findall(regexp, str(self))
+
+    def expand(self, obj, items):
+        block = [item.raw for item in obj.parents]
+        block.append(obj.raw)
+
+        current_level = items
+        for b in block:
+            if b not in current_level:
+                current_level[b] = collections.OrderedDict()
+            current_level = current_level[b]
+        for c in obj.children:
+            if c.raw not in current_level:
+                current_level[c.raw] = collections.OrderedDict()
+
+    def to_lines(self, section):
+        lines = list()
+        for entry in section[1:]:
+            line = ['set']
+            line.extend([p.text for p in entry.parents])
+            line.append(entry.text)
+            lines.append(' '.join(line))
+        return lines
+
+    def to_block(self, section):
+        return '\n'.join([item.raw for item in section])
+
+    def get_section(self, path):
+        try:
+            section = self.get_section_objects(path)
+            if self._device_os == 'junos':
+                return self.to_lines(section)
+            return self.to_block(section)
+        except ValueError:
+            return list()
+
+    def get_section_objects(self, path):
+        if not isinstance(path, list):
+            path = [path]
+        obj = self.get_object(path)
+        if not obj:
+            raise ValueError('path does not exist in config')
+        return self.expand_section(obj)
+
+    def expand_section(self, configobj, S=None):
+        if S is None:
+            S = list()
+        S.append(configobj)
+        for child in configobj.children:
+            if child in S:
+                continue
+            self.expand_section(child, S)
+        return S
+
+    def flatten(self, data, obj=None):
+        if obj is None:
+            obj = list()
+        for k, v in data.items():
+            obj.append(k)
+            self.flatten(v, obj)
+        return obj
+
+    def get_object(self, path):
+        for item in self.items:
+            if item.text == path[-1]:
+                parents = [p.text for p in item.parents]
+                if parents == path[:-1]:
+                    return item
+
+    def get_children(self, path):
+        obj = self.get_object(path)
+        if obj:
+            return obj.children
+
+    def difference(self, other, path=None, match='line', replace='line'):
+        updates = list()
+
+        config = self.items
+        if path:
+            config = self.get_children(path) or list()
+
+        if match == 'line':
+            for item in config:
+                if item not in other.items:
+                    updates.append(item)
+
+        elif match == 'strict':
+            if path:
+                current = other.get_children(path) or list()
+            else:
+                current = other.items
+
+            for index, item in enumerate(config):
+                try:
+                    if item != current[index]:
+                        updates.append(item)
+                except IndexError:
+                    updates.append(item)
+
+        elif match == 'exact':
+            if path:
+                current = other.get_children(path) or list()
+            else:
+                current = other.items
+
+            if len(current) != len(config):
+                updates.extend(config)
+            else:
+                for ours, theirs in itertools.izip(config, current):
+                    if ours != theirs:
+                        updates.extend(config)
+                        break
+
+        if self._device_os == 'junos':
+            return updates
+
+        diffs = collections.OrderedDict()
+        for update in updates:
+            if replace == 'block' and update.parents:
+                update = update.parents[-1]
+            self.expand(update, diffs)
+
+        return self.flatten(diffs)
+
+    def replace(self, replace, text=None, regex=None, parents=None,
+            add_if_missing=False, ignore_whitespace=False):
+        match = None
+
+        parents = parents or list()
+        if text is None and regex is None:
+            raise ValueError('missing required arguments')
+
+        if not regex:
+            regex = ['^%s$' % text]
+
+        patterns = [re.compile(r, re.I) for r in to_list(regex)]
+
+        for item in self.items:
+            for regexp in patterns:
+                if ignore_whitespace is True:
+                    string = item.text
+                else:
+                    string = item.raw
+                if regexp.search(item.text):
+                    if item.text != replace:
+                        if parents == [p.text for p in item.parents]:
+                            match = item
+                            break
+
+        if match:
+            match.text = replace
+            indent = len(match.raw) - len(match.raw.lstrip())
+            match.raw = replace.rjust(len(replace) + indent)
+
+        elif add_if_missing:
+            self.add(replace, parents=parents)
+
+
+    def add(self, lines, parents=None):
+        """Adds one or lines of configuration
+        """
+
+        ancestors = list()
+        offset = 0
+        obj = None
+
+        ## global config command
+        if not parents:
+            for line in to_list(lines):
+                item = ConfigLine(line)
+                item.raw = line
+                if item not in self.items:
+                    self.items.append(item)
+
+        else:
+            for index, p in enumerate(parents):
+                try:
+                    i = index + 1
+                    obj = self.get_section_objects(parents[:i])[0]
+                    ancestors.append(obj)
+
+                except ValueError:
+                    # add parent to config
+                    offset = index * self.indent
+                    obj = ConfigLine(p)
+                    obj.raw = p.rjust(len(p) + offset)
+                    if ancestors:
+                        obj.parents = list(ancestors)
+                        ancestors[-1].children.append(obj)
+                    self.items.append(obj)
+                    ancestors.append(obj)
+
+            # add child objects
+            for line in to_list(lines):
+                # check if child already exists
+                for child in ancestors[-1].children:
+                    if child.text == line:
+                        break
+                else:
+                    offset = len(parents) * self.indent
+                    item = ConfigLine(line)
+                    item.raw = line.rjust(len(line) + offset)
+                    item.parents = ancestors
+                    ancestors[-1].children.append(item)
+                    self.items.append(item)
+
+
+def argument_spec():
+    return dict(
+        # config options
+        running_config=dict(aliases=['config']),
+        save_config=dict(type='bool', default=False, aliases=['save'])
+    )
+nxos_argument_spec = argument_spec()
+
+
+NET_PASSWD_RE = re.compile(r"[\r\n]?password: $", re.I)
+
+NET_COMMON_ARGS = dict(
+    host=dict(required=True),
+    port=dict(type='int'),
+    username=dict(fallback=(env_fallback, ['ANSIBLE_NET_USERNAME'])),
+    password=dict(no_log=True, fallback=(env_fallback, ['ANSIBLE_NET_PASSWORD'])),
+    ssh_keyfile=dict(fallback=(env_fallback, ['ANSIBLE_NET_SSH_KEYFILE']), type='path'),
+    transport=dict(default='cli', choices=['cli', 'nxapi']),
+    use_ssl=dict(default=False, type='bool'),
+    validate_certs=dict(default=True, type='bool'),
+    provider=dict(type='dict'),
+    timeout=dict(default=10, type='int')
+)
+
+NXAPI_COMMAND_TYPES = ['cli_show', 'cli_show_ascii', 'cli_conf', 'bash']
+
+NXAPI_ENCODINGS = ['json', 'xml']
+
+CLI_PROMPTS_RE = [
+    re.compile(r'[\r\n]?[a-zA-Z]{1}[a-zA-Z0-9-]*[>|#|%](?:\s*)$'),
+    re.compile(r'[\r\n]?[a-zA-Z]{1}[a-zA-Z0-9-]*\(.+\)#(?:\s*)$')
+]
+
+CLI_ERRORS_RE = [
+    re.compile(r"% ?Error"),
+    re.compile(r"^% \w+", re.M),
+    re.compile(r"% ?Bad secret"),
+    re.compile(r"invalid input", re.I),
+    re.compile(r"(?:incomplete|ambiguous) command", re.I),
+    re.compile(r"connection timed out", re.I),
+    re.compile(r"[^\r\n]+ not found", re.I),
+    re.compile(r"'[^']' +returned error code: ?\d+"),
+    re.compile(r"syntax error"),
+    re.compile(r"unknown command")
+]
+
+
+def to_list(val):
+    if isinstance(val, (list, tuple)):
+        return list(val)
+    elif val is not None:
+        return [val]
+    else:
+        return list()
+
+
+class Nxapi(object):
+
+    def __init__(self, module):
+        self.module = module
+
+        # sets the module_utils/urls.py req parameters
+        self.module.params['url_username'] = module.params['username']
+        self.module.params['url_password'] = module.params['password']
+
+        self.url = None
+        self._nxapi_auth = None
+
+    def _get_body(self, commands, command_type, encoding, version='1.0', chunk='0', sid=None):
+        """Encodes a NXAPI JSON request message
+        """
+        if isinstance(commands, (list, set, tuple)):
+            commands = ' ;'.join(commands)
+
+        if encoding not in NXAPI_ENCODINGS:
+            msg = 'invalid encoding, received %s, exceped one of %s' % \
+                    (encoding, ','.join(NXAPI_ENCODINGS))
+            self.module_fail_json(msg=msg)
+
+        msg = {
+            'version': version,
+            'type': command_type,
+            'chunk': chunk,
+            'sid': sid,
+            'input': commands,
+            'output_format': encoding
+        }
+        return dict(ins_api=msg)
+
+    def connect(self):
+        host = self.module.params['host']
+        port = self.module.params['port']
+
+        if self.module.params['use_ssl']:
+            proto = 'https'
+            if not port:
+                port = 443
+        else:
+            proto = 'http'
+            if not port:
+                port = 80
+
+        self.url = '%s://%s:%s/ins' % (proto, host, port)
+
+    def send(self, commands, command_type='cli_show_ascii', encoding='json'):
+        """Send commands to the device.
+        """
+        clist = to_list(commands)
+
+        if command_type not in NXAPI_COMMAND_TYPES:
+            msg = 'invalid command_type, received %s, exceped one of %s' % \
+                    (command_type, ','.join(NXAPI_COMMAND_TYPES))
+            self.module_fail_json(msg=msg)
+
+        data = self._get_body(clist, command_type, encoding)
+        data = self.module.jsonify(data)
+
+        headers = {'Content-Type': 'application/json'}
+        if self._nxapi_auth:
+            headers['Cookie'] = self._nxapi_auth
+
+        response, headers = fetch_url(self.module, self.url, data=data,
+                headers=headers, method='POST')
+
+        self._nxapi_auth = headers.get('set-cookie')
+
+        if headers['status'] != 200:
+            self.module.fail_json(**headers)
+
+        response = self.module.from_json(response.read())
+        result = list()
+
+        output = response['ins_api']['outputs']['output']
+        for item in to_list(output):
+            if item['code'] != '200':
+                self.module.fail_json(**item)
+            else:
+                result.append(item['body'])
+
+        return result
+
+
+class Cli(object):
+
+    def __init__(self, module):
+        self.module = module
+        self.shell = None
+
+    def connect(self, **kwargs):
+        host = self.module.params['host']
+        port = self.module.params['port'] or 22
+
+        username = self.module.params['username']
+        password = self.module.params['password']
+        timeout = self.module.params['timeout']
+        key_filename = self.module.params['ssh_keyfile']
+
+        allow_agent = (key_filename is not None) or (key_filename is None and password is None)
+
+        try:
+            self.shell = Shell(kickstart=False, prompts_re=CLI_PROMPTS_RE,
+                    errors_re=CLI_ERRORS_RE)
+            self.shell.open(host, port=port, username=username,
+                    password=password, key_filename=key_filename,
+                    allow_agent=allow_agent, timeout=timeout)
+        except ShellError:
+            e = get_exception()
+            msg = 'failed to connect to %s:%s - %s' % (host, port, str(e))
+            self.module.fail_json(msg=msg)
+
+    def send(self, commands, encoding='text'):
+        try:
+            return self.shell.send(commands)
+        except ShellError:
+            e = get_exception()
+            self.module.fail_json(msg=e.message, commands=commands)
+
+
+class NetworkModule(AnsibleModule):
+
+    def __init__(self, *args, **kwargs):
+        super(NetworkModule, self).__init__(*args, **kwargs)
+        self.connection = None
+        self._config = None
+        self._connected = False
+
+    @property
+    def connected(self):
+        return self._connected
+
+    @property
+    def config(self):
+        if not self._config:
+            self._config = self.get_config()
+        return self._config
+
+    def _load_params(self):
+        super(NetworkModule, self)._load_params()
+        provider = self.params.get('provider') or dict()
+        for key, value in provider.items():
+            if key in NET_COMMON_ARGS:
+                if self.params.get(key) is None and value is not None:
+                    self.params[key] = value
+
+    def connect(self):
+        cls = globals().get(str(self.params['transport']).capitalize())
+        try:
+            self.connection = cls(self)
+        except TypeError:
+            e = get_exception()
+            self.fail_json(msg=e.message)
+
+        self.connection.connect()
+
+        if self.params['transport'] == 'cli':
+            self.connection.send('terminal length 0')
+
+        self._connected = True
+
+    def configure(self, commands):
+        commands = to_list(commands)
+        if self.params['transport'] == 'cli':
+            return self.configure_cli(commands)
+        else:
+            return self.execute(commands, command_type='cli_conf')
+
+    def configure_cli(self, commands):
+        commands = to_list(commands)
+        commands.insert(0, 'configure')
+        responses = self.execute(commands)
+        responses.pop(0)
+        return responses
+
+    def execute(self, commands, **kwargs):
+        if not self.connected:
+            self.connect()
+        return self.connection.send(commands, **kwargs)
+
+    def disconnect(self):
+        self.connection.close()
+        self._connected = False
+
+    def parse_config(self, cfg):
+        return parse(cfg, indent=2)
+
+    def get_config(self):
+        cmd = 'show running-config'
+        if self.params.get('include_defaults'):
+            cmd += ' all'
+        response = self.execute(cmd)
+        return response[0]
+
+
+def get_module(**kwargs):
+    """Return instance of NetworkModule
+    """
+    argument_spec = NET_COMMON_ARGS.copy()
+    if kwargs.get('argument_spec'):
+        argument_spec.update(kwargs['argument_spec'])
+    kwargs['argument_spec'] = argument_spec
+
+    module = NetworkModule(**kwargs)
+
+    if module.params['transport'] == 'cli' and not HAS_PARAMIKO:
+        module.fail_json(msg='paramiko is required but does not appear to be installed')
+
+    return module
+
+
+def custom_get_config(module, include_defaults=False):
+    config = module.params['running_config']
+    if not config:
+        cmd = 'show running-config'
+        if module.params['include_defaults']:
+            cmd += ' all'
+        if module.params['transport'] == 'nxapi':
+            config = module.execute([cmd], command_type='cli_show_ascii')[0]
+        else:
+            config = module.execute([cmd])[0]
+
+    return CustomNetworkConfig(indent=2, contents=config)
+
+def load_config(module, candidate):
+    config = custom_get_config(module)
+
+    commands = candidate.difference(config)
+    commands = [str(c).strip() for c in commands]
+
+    save_config = module.params['save_config']
+
+    result = dict(changed=False)
+
+    if commands:
+        if not module.check_mode:
+            module.configure(commands)
+            if save_config:
+                module.config.save_config()
+
+        result['changed'] = True
+        result['updates'] = commands
+
+    return result
+# END OF COMMON CODE
 
 def vlan_range_to_list(vlans):
     result = []
@@ -196,13 +880,17 @@ def get_vlan_config_commands(vlan, vid):
         'name': 'name {0}',
         'vlan_state': 'state {0}',
         'admin_state': '{0}',
-        'mode': 'mode {0}'
+        'mode': 'mode {0}',
+        'mapped_vni': 'vn-segment {0}'
     }
 
     commands = []
 
     for param, value in vlan.iteritems():
-        command = VLAN_ARGS.get(param).format(vlan.get(param))
+        if param == 'mapped_vni' and value == 'default':
+            command = 'no vn-segment'
+        else:
+            command = VLAN_ARGS.get(param).format(vlan.get(param))
         if command:
             commands.append(command)
 
@@ -213,7 +901,6 @@ def get_vlan_config_commands(vlan, vid):
 
 
 def get_list_of_vlans(module):
-
     command = 'show vlan'
     body = execute_show_command(command, module)
     vlan_list = []
@@ -228,6 +915,17 @@ def get_list_of_vlans(module):
     return vlan_list
 
 
+def get_vni(vlanid, module):
+    command = 'show run all | section vlan.{0}'.format(vlanid)
+    body = execute_show_command(command, module, command_type='cli_show_ascii')[0]
+    value = ''
+    if body:
+        REGEX = re.compile(r'(?:vn-segment\s)(?P<value>.*)$', re.M)
+        if 'vn-segment' in body:
+            value = REGEX.search(body).group('value')
+    return value
+
+
 def get_vlan(vlanid, module):
     """Get instance of VLAN as a dictionary
     """
@@ -258,7 +956,7 @@ def get_vlan(vlanid, module):
     }
 
     vlan = apply_value_map(value_map, vlan)
-
+    vlan['mapped_vni'] = get_vni(vlanid, module)
     return vlan
 
 
@@ -293,7 +991,9 @@ def get_cli_body_ssh(command, response, module):
     if | json returns an XML string, it is a valid command, but that the
     resource doesn't exist yet.
     """
-    if 'xml' in response[0]:
+    if 'show run' in command or response[0] == '\n':
+        body = response
+    elif 'xml' in response[0]:
         body = []
     else:
         try:
@@ -318,9 +1018,9 @@ def execute_show(cmds, module, command_type=None):
 
 
 def execute_show_command(command, module, command_type='cli_show'):
-
     if module.params['transport'] == 'cli':
-        command += ' | json'
+        if 'show run' not in command:
+            command += ' | json'
         cmds = [command]
         response = execute_show(cmds, module)
         body = get_cli_body_ssh(command, response, module)
@@ -337,6 +1037,7 @@ def main():
             vlan_range=dict(required=False),
             name=dict(required=False),
             vlan_state=dict(choices=['active', 'suspend'], required=False),
+            mapped_vni=dict(required=False, type='str'),
             state=dict(choices=['present', 'absent'], default='present',
                        required=False),
             admin_state=dict(choices=['up', 'down'], required=False),
@@ -351,6 +1052,7 @@ def main():
     name = module.params['name']
     vlan_state = module.params['vlan_state']
     admin_state = module.params['admin_state']
+    mapped_vni = module.params['mapped_vni']
     state = module.params['state']
 
     changed = False
@@ -360,7 +1062,7 @@ def main():
             module.fail_json(msg='vlan_id must be a valid VLAN ID')
 
     args = dict(name=name, vlan_state=vlan_state,
-                admin_state=admin_state)
+                admin_state=admin_state, mapped_vni=mapped_vni)
 
     proposed = dict((k, v) for k, v in args.iteritems() if v is not None)
 
@@ -390,6 +1092,9 @@ def main():
             if existing:
                 commands = ['no vlan ' + vlan_id]
         elif state == 'present':
+            if (existing.get('mapped_vni') == '0' and
+                proposed.get('mapped_vni') == 'default'):
+                proposed.pop('mapped_vni')
             delta = dict(set(
                 proposed.iteritems()).difference(existing.iteritems()))
             if delta or not existing:
@@ -399,6 +1104,10 @@ def main():
     end_state_vlans_list = existing_vlans_list
 
     if commands:
+        if existing:
+            if (existing.get('mapped_vni') != proposed.get('mapped_vni') and
+                existing.get('mapped_vni') != '0' and proposed.get('mapped_vni') != 'default'):
+                commands.insert(1, 'no vn-segment')
         if module.check_mode:
             module.exit_json(changed=True,
                              commands=commands)
@@ -416,17 +1125,11 @@ def main():
     results['existing'] = existing
     results['end_state'] = end_state
     results['end_state_vlans_list'] = end_state_vlans_list
-    results['state'] = state
     results['updates'] = commands
     results['changed'] = changed
 
     module.exit_json(**results)
 
-from ansible.module_utils.basic import *
-from ansible.module_utils.urls import *
-from ansible.module_utils.shell import *
-from ansible.module_utils.netcfg import *
-from ansible.module_utils.nxos import *
 
 if __name__ == '__main__':
     main()