Add eos_lldp module (#34302)

* Add eos_lldp module

*  Implementation for eos_lldp module
*  eos_lldp integration test

* Fix minor issue

* Minor change

lib/ansible/modules/network/eos/eos_l3_interface.py

@@ -17,7 +17,7 @@ DOCUMENTATION = """
 module: eos_l3_interface
 version_added: "2.5"
 author: "Ganesh Nalawade (@ganeshrn)"
-short_description: Manage L3 interfaces on Arist EOS network devices.
+short_description: Manage L3 interfaces on Arista EOS network devices.
 description:
   - This module provides declarative management of L3 interfaces
     on Arist EOS network devices.

lib/ansible/modules/network/eos/eos_lldp.py

@@ -0,0 +1,112 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# (c) 2017, Ansible by Red Hat, inc
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
+
+ANSIBLE_METADATA = {'metadata_version': '1.1',
+                    'status': ['preview'],
+                    'supported_by': 'network'}
+
+
+DOCUMENTATION = """
+---
+module: eos_lldp
+version_added: "2.5"
+author: "Ganesh Nalawade (@ganeshrn)"
+short_description: Manage LLDP configuration on Arista EOS network devices
+description:
+  - This module provides declarative management of LLDP service
+    on Arista EOS network devices.
+notes:
+  - Tested against EOS 4.15
+options:
+  state:
+    description:
+      - State of the LLDP configuration. If value is I(present) lldp will be enabled
+        else if it is I(absent) it will be disabled.
+    default: present
+    choices: ['present', 'absent']
+"""
+
+EXAMPLES = """
+- name: Enable LLDP service
+  eos_lldp:
+    state: present
+
+- name: Disable LLDP service
+  eos_lldp:
+    state: absent
+"""
+
+RETURN = """
+commands:
+  description: The list of configuration mode commands to send to the device
+  returned: always, except for the platforms that use Netconf transport to manage the device.
+  type: list
+  sample:
+    - lldp run
+"""
+from ansible.module_utils.basic import AnsibleModule
+from ansible.module_utils.network.eos.eos import get_config, load_config, run_commands
+from ansible.module_utils.network.eos.eos import eos_argument_spec
+
+
+def has_lldp(module):
+    output = run_commands(module, ['show lldp'])
+
+    is_lldp_enable = False
+    if len(output) > 0 and "LLDP is not enabled" not in output[0]:
+        is_lldp_enable = True
+
+    return is_lldp_enable
+
+
+def main():
+    """ main entry point for module execution
+    """
+    argument_spec = dict(
+        state=dict(default='present',
+                   choices=['present', 'absent',
+                            'enabled', 'disabled'])
+    )
+
+    argument_spec.update(eos_argument_spec)
+
+    module = AnsibleModule(argument_spec=argument_spec,
+                           supports_check_mode=True)
+
+    warnings = list()
+
+    result = {'changed': False}
+
+    if warnings:
+        result['warnings'] = warnings
+
+    HAS_LLDP = has_lldp(module)
+
+    commands = []
+
+    if module.params['state'] == 'absent' and HAS_LLDP:
+        commands.append('no lldp run')
+    elif module.params['state'] == 'present' and not HAS_LLDP:
+        commands.append('lldp run')
+
+    result['commands'] = commands
+
+    if commands:
+        commit = not module.check_mode
+        response = load_config(module, commands, commit=commit)
+        if response.get('diff') and module._diff:
+            result['diff'] = {'prepared': response.get('diff')}
+        result['session_name'] = response.get('session')
+        result['changed'] = True
+
+    module.exit_json(**result)
+
+if __name__ == '__main__':
+    main()