net_lldp_interface module implementation for junos (#26915)

*  junos_lldp_interface module implementation
*  junos_lldp_interface integration test
*  net_lldp_interface module intgration test for junos
*  Add lldp configuration parameter in junos_lldp
*  Modify junos_lldp testcase as per above change
*  Add net_lldp_interface module documentation

lib/ansible/modules/network/junos/junos_lldp.py

@@ -34,11 +34,34 @@ description:
   - This module provides declarative management of LLDP service
     on Juniper JUNOS network devices.
 options:
+  interval:
+    description:
+      - Frequency at which LLDP advertisements are sent (in seconds).
+  transmit_delay:
+    description:
+      - Specify the number of seconds the device waits before sending
+        advertisements to neighbors after a change is made in local system.
+  hold_multiplier:
+    description:
+      - Specify the number of seconds that LLDP information is held before it is
+        discarded. The multiplier value is used in combination with the
+        C(interval) value.
+  enable:
+    description:
+      - If value is C(True) it enable LLDP protocol on remote device, if value
+        is C(False) it disables LLDP protocol.
+    default: present
+    choices: [True, False]
   state:
     description:
-      - State of the LLDP configuration.
+      - Value of C(present) ensures given LLDP configuration
+        is present on device and LLDP is enabled, for value of C(absent)
+        LLDP configuration is deleted and LLDP is in disabled state.
+        Value C(enabled) ensures LLDP protocol is enabled and LLDP configuration
+        if any is configured on remote device, for value of C(disabled) it ensures
+        LLDP protocol is disabled any LLDP configuration if any is still present.
     default: present
-    choices: ['present', 'absent']
+    choices: ['present', 'absent', 'enabled', 'disabled']
   active:
     description:
       - Specifies whether or not the configuration is active or deactivated
@@ -54,10 +77,24 @@ notes:
 EXAMPLES = """
 - name: Enable LLDP service
   junos_lldp:
-    state: present
+    state: enabled
 
 - name: Disable LLDP service
-  vyos_lldp:
+  junos_lldp:
+    state: disabled
+
+- name: Set LLDP parameters
+  junos_lldp:
+    interval: 10
+    hold_multiplier: 5
+    transmit_delay: 30
+    state: present
+
+- name: Delete LLDP parameters
+  junos_lldp:
+    interval: 10
+    hold_multiplier: 5
+    transmit_delay: 30
     state: absent
 """
 
@@ -89,12 +126,39 @@ except ImportError:
 USE_PERSISTENT_CONNECTION = True
 
 
+def validate_interval(value, module):
+    if not 5 <= value <= 32768:
+        module.fail_json(msg='interval must be between 5 and 32768')
+
+
+def validate_hold_multiplier(value, module):
+    if not 5 <= value <= 32768:
+        module.fail_json(msg='hold_multiplier must be between 2 and 10')
+
+
+def validate_transmit_delay(value, module):
+    if not 1 <= value <= 8192:
+        module.fail_json(msg='transmit_delay must be between 2 and 10')
+
+
+def validate_param_values(module, obj):
+    for key in obj:
+        # validate the param value (if validator func exists)
+        validator = globals().get('validate_%s' % key)
+        if callable(validator):
+            validator(module.params.get(key), module)
+
+
 def main():
     """ main entry point for module execution
     """
     argument_spec = dict(
+        interval=dict(type='int'),
+        transmit_delay=dict(type='int'),
+        hold_multiplier=dict(type='int'),
         purge=dict(default=False, type='bool'),
-        state=dict(default='present', choices=['present', 'absent']),
+        state=dict(default='present', choices=['present', 'absent', 'enabled', 'disabled']),
+        active=dict(default=True, type='bool')
     )
 
     argument_spec.update(junos_argument_spec)
@@ -114,11 +178,17 @@ def main():
 
     param_to_xpath_map = collections.OrderedDict()
     param_to_xpath_map.update([
+        ('interval', {'xpath': 'advertisement-interval', 'leaf_only': True}),
+        ('transmit_delay', {'xpath': 'transmit-delay', 'leaf_only': True}),
+        ('hold_multiplier', {'xpath': 'hold-multiplier', 'leaf_only': True}),
         ('disable', {'xpath': 'disable', 'tag_only': True, 'is_key': True})
     ])
 
     state = module.params.get('state')
-    module.params['disable'] = True if state == 'absent' else False
+    module.params['disable'] = True if state in ('disabled', 'absent') else False
+
+    if state in ('enabled', 'disabled'):
+        module.params['state'] = 'present'
 
     want = map_params_to_obj(module, param_to_xpath_map)
     ele = map_obj_to_ele(module, want, top)

lib/ansible/modules/network/junos/junos_lldp_interface.py

@@ -0,0 +1,182 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# (c) 2017, Ansible by Red Hat, inc
+#
+# This file is part of Ansible by Red Hat
+#
+# Ansible is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Ansible is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+ANSIBLE_METADATA = {'metadata_version': '1.0',
+                    'status': ['preview'],
+                    'supported_by': 'core'}
+
+
+DOCUMENTATION = """
+---
+module: junos_lldp_interface
+version_added: "2.4"
+author: "Ganesh Nalawade (@ganeshrn)"
+short_description: Manage LLDP interfaces configuration on Juniper JUNOS network devices
+description:
+  - This module provides declarative management of LLDP interfaces
+    configuration on Juniper JUNOS network devices.
+options:
+  name:
+    description:
+      - Name of the interface LLDP should be configured on.
+  aggregate:
+    description: List of interfaces LLDP should be configured on.
+  purge:
+    description:
+      - Purge interfaces not defined in the aggregate parameter.
+    default: no
+  state:
+    description:
+      - Value of C(present) ensures given LLDP configured on given I(interfaces)
+        and is enabled, for value of C(absent) LLDP configuration on given I(interfaces) deleted.
+        Value C(enabled) ensures LLDP protocol is enabled on given I(interfaces) and
+         for value of C(disabled) it ensures LLDP is disabled on given I(interfaces).
+    default: present
+    choices: ['present', 'absent', 'enabled', 'disabled']
+  active:
+    description:
+      - Specifies whether or not the configuration is active or deactivated
+    default: True
+    choices: [True, False]
+requirements:
+  - ncclient (>=v0.5.2)
+notes:
+  - This module requires the netconf system service be enabled on
+    the remote device being managed
+"""
+
+EXAMPLES = """
+- name: Configure LLDP on specific interfaces
+  junos_lldp_interface:
+    name: ge-0/0/5
+    state: present
+
+- name: Disable LLDP on specific interfaces
+  junos_lldp_interface:
+    name: ge-0/0/5
+    state: disabled
+
+- name: Enable LLDP on specific interfaces
+  junos_lldp_interface:
+    name: ge-0/0/5
+    state: enabled
+
+- name: Delete LLDP configuration on specific interfaces
+  junos_lldp_interface:
+    name: ge-0/0/5
+    state: present
+
+- name: Deactivate LLDP on specific interfaces
+  junos_lldp_interface:
+    name: ge-0/0/5
+    state: present
+    active: False
+
+- name: Activate LLDP on specific interfaces
+  junos_lldp_interface:
+    name: ge-0/0/5
+    state: present
+    active: True
+"""
+
+RETURN = """
+diff.prepared:
+  description: Configuration difference before and after applying change.
+  returned: when configuration is changed and diff option is enabled.
+  type: string
+  sample: >
+        [edit protocols lldp]
+        +    interface ge-0/0/5;
+"""
+import collections
+
+from ansible.module_utils.basic import AnsibleModule
+from ansible.module_utils.junos import junos_argument_spec, check_args
+from ansible.module_utils.junos import load_config, map_params_to_obj, map_obj_to_ele
+from ansible.module_utils.junos import commit_configuration, discard_changes, locked_config
+
+try:
+    from lxml.etree import tostring
+except ImportError:
+    from xml.etree.ElementTree import tostring
+
+USE_PERSISTENT_CONNECTION = True
+
+
+def main():
+    """ main entry point for module execution
+    """
+    argument_spec = dict(
+        name=dict(),
+        aggregate=dict(type='list'),
+        purge=dict(default=False, type='bool'),
+        state=dict(default='present', choices=['present', 'absent', 'enabled', 'disabled']),
+        active=dict(default=True, type='bool')
+    )
+
+    argument_spec.update(junos_argument_spec)
+
+    module = AnsibleModule(argument_spec=argument_spec,
+                           supports_check_mode=True)
+
+    warnings = list()
+    check_args(module, warnings)
+
+    result = {'changed': False}
+
+    if warnings:
+        result['warnings'] = warnings
+
+    top = 'protocols/lldp/interface'
+
+    param_to_xpath_map = collections.OrderedDict()
+    param_to_xpath_map.update([
+        ('name', {'xpath': 'name', 'is_key': True}),
+        ('disable', {'xpath': 'disable', 'tag_only': True})
+    ])
+
+    state = module.params.get('state')
+    module.params['disable'] = True if state in ('disabled', 'absent') else False
+
+    if state in ('enabled', 'disabled'):
+        module.params['state'] = 'present'
+
+    want = map_params_to_obj(module, param_to_xpath_map)
+    ele = map_obj_to_ele(module, want, top)
+
+    with locked_config(module):
+        diff = load_config(module, tostring(ele), warnings, action='replace')
+
+        commit = not module.check_mode
+        if diff:
+            if commit:
+                commit_configuration(module)
+            else:
+                discard_changes(module)
+            result['changed'] = True
+
+            if module._diff:
+                result['diff'] = {'prepared': diff}
+
+    module.exit_json(**result)
+
+if __name__ == "__main__":
+    main()