Add ios_linkagg DI module (#33215)

* Add ios_linkagg DI module

Signed-off-by: Trishna Guha <trishnaguha17@gmail.com>

* pep8 fixes

* update ios version

* ios_linkagg integration test

Signed-off-by: Trishna Guha <trishnaguha17@gmail.com>

* fix port-channel commands

* update test

* ios tests to network_cli

Signed-off-by: Trishna Guha <trishnaguha17@gmail.com>

* add required_together check in aggregate and update test

Signed-off-by: Trishna Guha <trishnaguha17@gmail.com>

* fix pep8 issues

* Add discovery of ios switch type

Signed-off-by: Trishna Guha <trishnaguha17@gmail.com>

test/integration/targets/ios_linkagg/tests/cli/basic.yaml

@@ -0,0 +1,171 @@
+---
+- debug: msg="START cli/basic.yaml on connection={{ ansible_connection }}"
+
+- set_fact: switch_type="{{ switch_type }}"
+
+- block:
+
+  - name: setup - remove config used in test(part1)
+    ios_config:
+      lines:
+        - no interface port-channel 20
+      authorize: yes
+    ignore_errors: yes
+
+  - name: setup - remove config used in test(part2)
+    ios_config:
+      lines:
+        - no interface port-channel 5
+      authorize: yes
+    ignore_errors: yes
+
+  - name: setup - remove config used in test(part3)
+    ios_config:
+      lines:
+        - no channel-group 20 mode active
+      authorize: yes
+      parents: "{{ item }}"
+    loop:
+      - interface GigabitEthernet0/1
+      - interface GigabitEthernet0/2
+
+  - name: create linkagg
+    ios_linkagg: &create
+      group: 20
+      state: present
+      authorize: yes
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == true"
+        - "'interface port-channel 20' in result.commands"
+
+  - name: create linkagg(Idempotence)
+    ios_linkagg: *create
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == false"
+
+  - name: set link aggregation group to members
+    ios_linkagg: &configure_member
+      group: 20
+      mode: active
+      members:
+        - GigabitEthernet0/1
+        - GigabitEthernet0/2
+      authorize: yes
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == true"
+        - "'interface GigabitEthernet0/1' in result.commands"
+        - "'channel-group 20 mode active' in result.commands"
+        - "'interface GigabitEthernet0/2' in result.commands"
+        - "'channel-group 20 mode active' in result.commands"
+
+  - name: set link aggregation group to members(Idempotence)
+    ios_linkagg: *configure_member
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == false"
+
+  - name: remove link aggregation group from member
+    ios_linkagg: &remove_member
+      group: 20
+      mode: active
+      members:
+        - GigabitEthernet0/2
+      authorize: yes
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == true"
+        - "'interface GigabitEthernet0/1' in result.commands"
+        - "'no channel-group 20 mode active' in result.commands"
+
+  - name: remove link aggregation group from member(Idempotence)
+    ios_linkagg: *remove_member
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == false"
+
+  - name: remove linkagg
+    ios_linkagg: &remove
+      group: 20
+      state: absent
+      authorize: yes
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == true"
+        - "'no interface port-channel 20' in result.commands"
+
+  - name: remove linkagg(Idempotence)
+    ios_linkagg: *remove
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == false"
+
+  - name: create aggregate of linkagg definitions
+    ios_linkagg: &create_agg
+      aggregate:
+        - { group: 5 }
+        - { group: 20, mode: active, members: ['GigabitEthernet0/1'] }
+      authorize: yes
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == true"
+        - "'interface port-channel 5' in result.commands"
+        - "'interface port-channel 20' in result.commands"
+        - "'interface GigabitEthernet0/1' in result.commands"
+        - "'channel-group 20 mode active' in result.commands"
+
+  - name: create aggregate of linkagg definitions(Idempotence)
+    ios_linkagg: *create_agg
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == false"
+
+  - name: teardown(part1)
+    ios_config:
+      lines:
+        - no interface port-channel 20
+      authorize: yes
+    ignore_errors: yes
+
+  - name: teardown(part2)
+    ios_config:
+      lines:
+        - no interface port-channel 5
+      authorize: yes
+    ignore_errors: yes
+
+  - name: teardown(part3)
+    ios_config:
+      lines:
+        - no channel-group 20 mode active
+      authorize: yes
+      parents: "{{ item }}"
+    loop:
+      - interface GigabitEthernet0/1
+      - interface GigabitEthernet0/2
+
+  when: switch_type == 'L2'
+
+- debug: msg="END cli/basic.yaml on connection={{ ansible_connection }}"