Bump min openstacksdk version for os_network/{port_security_enabled,mtu}

To make use of the port_security_enabled [a] and mtu [b] parameters,
[c] and [d] need to be present in the openstacksdk or the os_network
module with return an error like:

TypeError: create_network() got an unexpected keyword argument 'port_security_enabled'

or:

TypeError: create_network() got an unexpected keyword argument 'mtu'

To handle this, we fail the module if one of the arguments are used
and the minimum openstacksdk version for that argument is not met.

[a] ansible/ansible@eaf238b
[b] ansible/ansible@c6a8e99
[c] openstack/openstacksdk@8eb788a
[d] openstack/openstacksdk@a1fc820

Fixes: ansible/ansible#62062
Change-Id: I2b80dc721a08bbdb530af3705ae99cf1b579d9f0

changelogs/fragments/62062-os_network-openstacksdk-min.yml

@@ -0,0 +1,3 @@
+bugfixes:
+  - Bump the minimum openstacksdk version to 0.18.0 when os_network
+    uses the port_security_enabled or mtu arguments.

changelogs/fragments/64495-os_network-openstacksdk-min.yml

@@ -1,3 +1,3 @@
 bugfixes:
-  - bump the minimum openstacksdk version when os_network
-    uses the dns_domain argument
+  - Bump the minimum openstacksdk version to 0.29.0 when os_network
+    uses the dns_domain argument.

plugins/modules/os_network.py

@@ -67,13 +67,13 @@
      description:
         -  Whether port security is enabled on the network or not.
            Network will use OpenStack defaults if this option is
-           not utilised.
+           not utilised. Requires openstacksdk>=0.18.
      type: bool
    mtu:
      description:
        -  The maximum transmission unit (MTU) value to address fragmentation.
           Network will use OpenStack defaults if this option is
-          not provided.
+          not provided. Requires openstacksdk>=0.18.
      type: int
    dns_domain:
      description:
@@ -195,16 +195,22 @@ def main():
     provider_segmentation_id = module.params['provider_segmentation_id']
     project = module.params['project']
 
-    net_create_kwargs = {
-        'port_security_enabled': module.params['port_security_enabled'],
-        'mtu_size': module.params['mtu']
-    }
+    net_create_kwargs = {}
+    min_version = None
+
+    if module.params['mtu'] is not None:
+        min_version = '0.18.0'
+        net_create_kwargs['mtu_size'] = module.params['mtu']
+
+    if module.params['port_security_enabled'] is not None:
+        min_version = '0.18.0'
+        net_create_kwargs['port_security_enabled'] = module.params['port_security_enabled']
 
     if module.params['dns_domain'] is not None:
-        sdk, cloud = openstack_cloud_from_module(module, min_version='0.29.0')
+        min_version = '0.29.0'
         net_create_kwargs['dns_domain'] = module.params['dns_domain']
-    else:
-        sdk, cloud = openstack_cloud_from_module(module)
+
+    sdk, cloud = openstack_cloud_from_module(module, min_version)
     try:
         if project is not None:
             proj = cloud.get_project(project)