Add module mlnxos_linkagg for configuring LAG and MLAG on Mellanox switches (#34204)

* Add module mlnxos_linkagg for configuring LAG and MLAG on Mellanox
switches

Signed-off-by: Samer Deeb <samerd@mellanox.com>

* Remove unnecessary  method in unit-test

remove _execute_module and use execute_module from base class

test/units/modules/network/mlnxos/fixtures/mlnxos_mlag_port_channel_show.cfg

@@ -0,0 +1,18 @@
+{
+    "MLAG Port-Channel Flags": "D-Down, U-Up, P-Partial UP, S - suspended by MLAG",
+    "Port Flags": {
+        "I": "Individual",
+        "P": "Up in port-channel (members)",
+        "S": "Suspend in port-channel (members)",
+        "D": "Down"
+    },
+    "MLAG Port-Channel Summary": {
+        "1 Mpo33(S)": [
+            {
+                "Local Ports (D/P/S/I)": "Eth1/8(D)",
+                "Peer Ports (D/P/S/I)": "N/A",
+                "Type": "LACP"
+            }
+        ]
+    }
+}

test/units/modules/network/mlnxos/fixtures/mlnxos_port_channel_show.cfg

@@ -0,0 +1,15 @@
+{
+    "Flags": {
+        "I": "Individual",
+        "P": "Up in port-channel (members)",
+        "S": "Suspend in port-channel (members)",
+        "U": "Up",
+        "D": "Down"
+    },
+    "1 Po22(D)": [
+        {
+            "Type": "STATIC",
+            "Member Ports": "Eth1/7(D)"
+        }
+    ]
+}

test/units/modules/network/mlnxos/test_mlnxos_linkagg.py

@@ -0,0 +1,111 @@
+#
+# Copyright: Ansible Project
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+# Make coding more python3-ish
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+
+from ansible.compat.tests.mock import patch
+from ansible.modules.network.mlnxos import mlnxos_linkagg
+from units.modules.utils import set_module_args
+from .mlnxos_module import TestMlnxosModule, load_fixture
+
+
+class TestMlnxosLinkaggModule(TestMlnxosModule):
+
+    module = mlnxos_linkagg
+
+    def setUp(self):
+        super(TestMlnxosLinkaggModule, self).setUp()
+        self.mock_get_config = patch.object(
+            mlnxos_linkagg.MlnxosLinkAggModule,
+            "_get_port_channels")
+        self.get_config = self.mock_get_config.start()
+
+        self.mock_load_config = patch(
+            'ansible.module_utils.network.mlnxos.mlnxos.load_config')
+        self.load_config = self.mock_load_config.start()
+
+    def tearDown(self):
+        super(TestMlnxosLinkaggModule, self).tearDown()
+        self.mock_get_config.stop()
+        self.mock_load_config.stop()
+
+    def load_fixture(self, config_file):
+        self.get_config.return_value = load_fixture(config_file)
+        self.load_config.return_value = None
+
+    def load_port_channel_fixture(self):
+        config_file = 'mlnxos_port_channel_show.cfg'
+        self.load_fixture(config_file)
+
+    def load_mlag_port_channel_fixture(self):
+        config_file = 'mlnxos_mlag_port_channel_show.cfg'
+        self.load_fixture(config_file)
+
+    def test_port_channel_no_change(self):
+        set_module_args(dict(name='Po22', state='present',
+                             members=['Eth1/7']))
+        self.load_port_channel_fixture()
+        self.execute_module(changed=False)
+
+    def test_port_channel_remove(self):
+        set_module_args(dict(name='Po22', state='absent'))
+        self.load_port_channel_fixture()
+        commands = ['no interface port-channel 22']
+        self.execute_module(changed=True, commands=commands)
+
+    def test_port_channel_add(self):
+        set_module_args(dict(name='Po23', state='present',
+                             members=['Eth1/8']))
+        self.load_port_channel_fixture()
+        commands = ['interface port-channel 23', 'exit',
+                    'interface ethernet 1/8 channel-group 23 mode on']
+        self.execute_module(changed=True, commands=commands)
+
+    def test_port_channel_add_member(self):
+        set_module_args(dict(name='Po22', state='present',
+                             members=['Eth1/7', 'Eth1/8']))
+        self.load_port_channel_fixture()
+        commands = ['interface ethernet 1/8 channel-group 22 mode on']
+        self.execute_module(changed=True, commands=commands)
+
+    def test_port_channel_remove_member(self):
+        set_module_args(dict(name='Po22', state='present'))
+        self.load_port_channel_fixture()
+        commands = ['interface ethernet 1/7 no channel-group']
+        self.execute_module(changed=True, commands=commands)
+
+    def test_mlag_port_channel_no_change(self):
+        set_module_args(dict(name='Mpo33', state='present',
+                             members=['Eth1/8']))
+        self.load_mlag_port_channel_fixture()
+        self.execute_module(changed=False)
+
+    def test_mlag_port_channel_remove(self):
+        set_module_args(dict(name='Mpo33', state='absent'))
+        self.load_mlag_port_channel_fixture()
+        commands = ['no interface mlag-port-channel 33']
+        self.execute_module(changed=True, commands=commands)
+
+    def test_mlag_port_channel_add(self):
+        set_module_args(dict(name='Mpo34', state='present',
+                             members=['Eth1/9']))
+        self.load_mlag_port_channel_fixture()
+        commands = ['interface mlag-port-channel 34', 'exit',
+                    'interface ethernet 1/9 mlag-channel-group 34 mode on']
+        self.execute_module(changed=True, commands=commands)
+
+    def test_mlag_port_channel_add_member(self):
+        set_module_args(dict(name='Mpo33', state='present',
+                             members=['Eth1/8', 'Eth1/9']))
+        self.load_mlag_port_channel_fixture()
+        commands = ['interface ethernet 1/9 mlag-channel-group 33 mode on']
+        self.execute_module(changed=True, commands=commands)
+
+    def test_mlag_port_channel_remove_member(self):
+        set_module_args(dict(name='Mpo33', state='present'))
+        self.load_mlag_port_channel_fixture()
+        commands = ['interface ethernet 1/8 no mlag-channel-group']
+        self.execute_module(changed=True, commands=commands)