nmcli: adding ipv6 address list support (#3776) (#3885)

* rebase

* Add changelog fragment

* add suggestions

* split PR into two

* Add multiple address support but with #3768 fiexed

* rebase

* clean some merge artifacts

* update the wording

(cherry picked from commit 90c0980e8d)

Co-authored-by: Alex Groshev <38885591+haddystuff@users.noreply.github.com>

changelogs/fragments/1088-add_multiple_ipv6_address_support.yml

@@ -0,0 +1,4 @@
+---
+minor_changes:
+  - nmcli - add multiple addresses support for ``ip6`` parameter
+    (https://github.com/ansible-collections/community.general/issues/1088).

plugins/modules/net_tools/nmcli.py

@@ -143,10 +143,11 @@ options:
         version_added: 3.3.0
     ip6:
         description:
-            - The IPv6 address to this interface.
+            - List of IPv6 addresses to this interface.
-            - Use the format C(abbe::cafe/128 or abbe::cafe).
+            - Use the format C(abbe::cafe/128) or C(abbe::cafe).
             - If defined and I(method6) is not specified, automatically set C(ipv6.method) to C(manual).
-        type: str
+        type: list
+        elements: str
     gw6:
         description:
             - The IPv6 gateway for this interface.
@@ -1510,13 +1511,10 @@ class Nmcli(object):
         return [address if '/' in address else address + '/32' for address in ip4_addresses]
 
     @staticmethod
-    def enforce_ipv6_cidr_notation(ip6_address):
+    def enforce_ipv6_cidr_notation(ip6_addresses):
-        if ip6_address is None:
+        if ip6_addresses is None:
             return None
-        elif '/' in ip6_address:
+        return [address if '/' in address else address + '/128' for address in ip6_addresses]
-            return ip6_address
-        else:
-            return ip6_address + '/128'
 
     @staticmethod
     def bool_to_string(boolean):
@@ -1543,6 +1541,7 @@ class Nmcli(object):
                        '802-11-wireless.hidden'):
             return bool
         elif setting in ('ipv4.addresses',
+                         'ipv6.addresses',
                          'ipv4.dns',
                          'ipv4.dns-search',
                          'ipv4.routes',
@@ -1846,7 +1845,7 @@ def main():
             method4=dict(type='str', choices=['auto', 'link-local', 'manual', 'shared', 'disabled']),
             may_fail4=dict(type='bool', default=True),
             dhcp_client_id=dict(type='str'),
-            ip6=dict(type='str'),
+            ip6=dict(type='list', elements='str'),
             gw6=dict(type='str'),
             gw6_ignore_auto=dict(type='bool', default=False),
             dns6=dict(type='list', elements='str'),

tests/unit/plugins/modules/net_tools/test_nmcli.py

@@ -601,6 +601,29 @@ TESTCASE_ETHERNET_STATIC_IP6_PRIVACY_AND_ADDR_GEN_MODE = [
     }
 ]
 
+TESTCASE_ETHERNET_STATIC_MULTIPLE_IP6_ADDRESSES = [
+    {
+        'type': 'ethernet',
+        'conn_name': 'non_existent_nw_device',
+        'ifname': 'ethernet_non_existant',
+        'ip6': ['2001:db8::cafe/128', '2002:db8::cafe/128'],
+        'gw6': '2001:db8::cafa',
+        'dns6': ['2001:4860:4860::8888', '2001:4860:4860::8844'],
+        'state': 'present',
+        '_ansible_check_mode': False,
+    },
+    {
+        'type': 'ethernet',
+        'conn_name': 'non_existent_nw_device',
+        'ifname': 'ethernet_non_existant',
+        'ip6': ['2001:db8::cafe', '2002:db8::cafe'],
+        'gw6': '2001:db8::cafa',
+        'dns6': ['2001:4860:4860::8888', '2001:4860:4860::8844'],
+        'state': 'present',
+        '_ansible_check_mode': False,
+    }
+]
+
 TESTCASE_ETHERNET_STATIC_MULTIPLE_IP4_ADDRESSES_SHOW_OUTPUT = """\
 connection.id:                          non_existent_nw_device
 connection.interface-name:              ethernet_non_existant
@@ -1050,6 +1073,13 @@ def mocked_ethernet_connection_static_ip6_privacy_and_addr_gen_mode_unchange(moc
                execute_return=(0, TESTCASE_ETHERNET_STATIC_IP6_PRIVACY_AND_ADDR_GEN_MODE_UNCHANGED_OUTPUT, ""))
 
 
+@pytest.fixture
+def mocked_ethernet_connection_static_multiple_ip6_addresses_unchanged(mocker):
+    mocker_set(mocker,
+               connection_exists=True,
+               execute_return=(0, TESTCASE_ETHERNET_STATIC_MULTIPLE_IP6_ADDRESSES_SHOW_OUTPUT, ""))
+
+
 @pytest.fixture
 def mocked_ethernet_connection_static_modify(mocker):
     mocker_set(mocker,
@@ -2650,6 +2680,46 @@ def test_create_ethernet_with_mulitple_ip4_addresses_static(mocked_generic_conne
     assert results['changed']
 
 
+@pytest.mark.parametrize('patch_ansible_module', TESTCASE_ETHERNET_STATIC_MULTIPLE_IP6_ADDRESSES, indirect=['patch_ansible_module'])
+def test_create_ethernet_with_mulitple_ip6_addresses_static(mocked_generic_connection_create, capfd):
+    """
+    Test : Create ethernet connection with multiple IPv6 addresses configuration
+    """
+
+    with pytest.raises(SystemExit):
+        nmcli.main()
+
+    assert nmcli.Nmcli.execute_command.call_count == 2
+    arg_list = nmcli.Nmcli.execute_command.call_args_list
+    add_args, add_kw = arg_list[0]
+
+    assert add_args[0][0] == '/usr/bin/nmcli'
+    assert add_args[0][1] == 'con'
+    assert add_args[0][2] == 'add'
+    assert add_args[0][3] == 'type'
+    assert add_args[0][4] == 'ethernet'
+    assert add_args[0][5] == 'con-name'
+    assert add_args[0][6] == 'non_existent_nw_device'
+
+    add_args_text = list(map(to_text, add_args[0]))
+    for param in ['connection.interface-name', 'ethernet_non_existant',
+                  'ipv6.addresses', '2001:db8::cafe/128,2002:db8::cafe/128',
+                  'ipv6.gateway', '2001:db8::cafa',
+                  'ipv6.dns', '2001:4860:4860::8888,2001:4860:4860::8844']:
+        assert param in add_args_text
+
+    up_args, up_kw = arg_list[1]
+    assert up_args[0][0] == '/usr/bin/nmcli'
+    assert up_args[0][1] == 'con'
+    assert up_args[0][2] == 'up'
+    assert up_args[0][3] == 'non_existent_nw_device'
+
+    out, err = capfd.readouterr()
+    results = json.loads(out)
+    assert not results.get('failed')
+    assert results['changed']
+
+
 @pytest.mark.parametrize('patch_ansible_module', TESTCASE_ETHERNET_STATIC_MULTIPLE_IP4_ADDRESSES, indirect=['patch_ansible_module'])
 def test_ethernet_connection_static_with_mulitple_ip4_addresses_unchanged(mocked_ethernet_connection_static_multiple_ip4_addresses_unchanged, capfd):
     """
@@ -2664,6 +2734,20 @@ def test_ethernet_connection_static_with_mulitple_ip4_addresses_unchanged(mocked
     assert not results['changed']
 
 
+@pytest.mark.parametrize('patch_ansible_module', TESTCASE_ETHERNET_STATIC_MULTIPLE_IP6_ADDRESSES, indirect=['patch_ansible_module'])
+def test_ethernet_connection_static_with_mulitple_ip6_addresses_unchanged(mocked_ethernet_connection_static_multiple_ip6_addresses_unchanged, capfd):
+    """
+    Test : Ethernet connection with multiple IPv6 addresses configuration unchanged
+    """
+    with pytest.raises(SystemExit):
+        nmcli.main()
+
+    out, err = capfd.readouterr()
+    results = json.loads(out)
+    assert not results.get('failed')
+    assert not results['changed']
+
+
 @pytest.mark.parametrize('patch_ansible_module', TESTCASE_ETHERNET_STATIC_MULTIPLE_IP4_ADDRESSES, indirect=['patch_ansible_module'])
 def test_add_second_ip4_address_to_ethernet_connection(mocked_ethernet_connection_static_modify, capfd):
     """