RFE: Support dummy interfaces

Signed-off-by: Wen Liang <liangwen12year@gmail.com>

examples/dummy_simple.yml

@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: BSD-3-Clause
+---
+- hosts: all
+  vars:
+    network_connections:
+      # Specify the dummy profile
+      - name: dummy0
+        state: up
+        type: dummy
+        interface_name: dummy0
+        ip:
+          address:
+            - "192.0.2.42/30"
+
+  roles:
+    - linux-system-roles.network
+...

library/network_connections.py

@@ -821,6 +821,8 @@ class NMUtil:
                 s_bond.add_option("miimon", str(connection["bond"]["miimon"]))
         elif connection["type"] == "team":
             s_con.set_property(NM.SETTING_CONNECTION_TYPE, NM.SETTING_TEAM_SETTING_NAME)
+        elif connection["type"] == "dummy":
+            s_con.set_property(NM.SETTING_CONNECTION_TYPE, NM.SETTING_DUMMY_SETTING_NAME)
         elif connection["type"] == "vlan":
             s_con.set_property(NM.SETTING_CONNECTION_TYPE, NM.SETTING_VLAN_SETTING_NAME)
             s_vlan = self.connection_ensure_setting(con, NM.SettingVlan)

module_utils/network_lsr/argument_validator.py

@@ -1006,6 +1006,7 @@ class ArgValidator_DictConnection(ArgValidatorDict):
         "vlan",
         "macvlan",
         "wireless",
+        "dummy",
     ]
     VALID_SLAVE_TYPES = ["bridge", "bond", "team"]
 

tests/ensure_provider_tests.py

@@ -59,6 +59,7 @@ EXTRA_RUN_CONDITION = "extra_run_condition"
 NM_ONLY_TESTS = {
     "playbooks/tests_802_1x_updated.yml": {},
     "playbooks/tests_802_1x.yml": {},
+    "playbooks/tests_dummy.yml": {},
     "playbooks/tests_ethtool_features.yml": {
         MINIMUM_VERSION: "'1.20.0'",
         "comment": "# NetworkManager 1.20.0 introduced ethtool settings support",

tests/playbooks/tests_dummy.yml

@@ -0,0 +1,30 @@
+# SPDX-License-Identifier: BSD-3-Clause
+---
+- hosts: all
+  vars:
+    interface: dummy0
+    profile: "{{ interface }}"
+    lsr_fail_debug:
+      - __network_connections_result
+  tasks:
+    - debug:
+        msg: "this is: playbooks/tests_dummy.yml"
+      tags:
+        - always
+
+    - block:
+        - include_tasks: tasks/run_test.yml
+          vars:
+            lsr_description: Create a dummy interface
+            lsr_setup:
+              - tasks/delete_interface.yml
+              - tasks/assert_device_absent.yml
+            lsr_test:
+              - tasks/create_dummy_profile.yml
+            lsr_assert:
+              - tasks/assert_profile_present.yml
+              - tasks/assert_device_present.yml
+            lsr_cleanup:
+              - tasks/cleanup_profile+device.yml
+      tags:
+        - tests::dummy:create

tests/tasks/create_dummy_profile.yml

@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: BSD-3-Clause
+---
+- include_role:
+    name: linux-system-roles.network
+  vars:
+    network_connections:
+      - name: "{{ interface }}"
+        state: up
+        type: dummy
+        ip:
+          address:
+            - "192.0.2.42/30"
+- debug:
+    var: __network_connections_result
+...

tests/tests_dummy_nm.yml

@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# This file was generated by ensure_provider_tests.py
+---
+# set network provider and gather facts
+- hosts: all
+  name: Run playbook 'playbooks/tests_dummy.yml' with nm as provider
+  tasks:
+    - name: Set network provider to 'nm'
+      set_fact:
+        network_provider: nm
+      tags:
+        - always
+
+
+# The test requires or should run with NetworkManager, therefore it cannot run
+# on RHEL/CentOS 6
+- import_playbook: playbooks/tests_dummy.yml
+  when:
+    - ansible_distribution_major_version != '6'