Add support for microversion v2.72

This microversion in Nova is added to support Neutron ports having
resource request during server create to guarantee minimum bandwidth
QoS. This is a behavior-only change in the compute API, there are no
changes to the server create request or response schema.

Change-Id: I1a39390015acd8703e8bab55af13f5c75ae226db
Depends-On: https://review.openstack.org/636360
Partial-Bug: #1578989
See-Also: https://review.openstack.org/502306 (nova spec)
See-Also: https://review.openstack.org/508149 (neutron spec)

doc/source/cli/nova.rst

@@ -956,6 +956,10 @@ nova boot
 
 Boot a new server.
 
+In order to create a server with pre-existing ports that contain a
+``resource_request`` value, such as for guaranteed minimum bandwidth
+quality of service support, microversion ``2.72`` is required.
+
 **Positional arguments:**
 
 ``<name>``

novaclient/__init__.py

@@ -25,4 +25,4 @@ API_MIN_VERSION = api_versions.APIVersion("2.1")
 # when client supported the max version, and bumped sequentially, otherwise
 # the client may break due to server side new version may include some
 # backward incompatible change.
-API_MAX_VERSION = api_versions.APIVersion("2.71")
+API_MAX_VERSION = api_versions.APIVersion("2.72")

novaclient/tests/unit/v2/test_shell.py

@@ -4132,6 +4132,7 @@ class ShellTest(utils.TestCase):
                  # flavor information.
             70,  # There are no version-wrapped shell method changes for this.
             71,  # There are no version-wrapped shell method changes for this.
+            72,  # There are no version-wrapped shell method changes for this.
         ])
         versions_supported = set(range(0,
                                  novaclient.API_MAX_VERSION.ver_minor + 1))

novaclient/v2/servers.py

@@ -1236,6 +1236,10 @@ class ServerManager(base.BootingManagerWithFind):
         """
         Create (boot) a new server.
 
+        In order to create a server with pre-existing ports that contain a
+        ``resource_request`` value, such as for guaranteed minimum bandwidth
+        quality of service support, microversion ``2.72`` is required.
+
         :param name: Something to name the server.
         :param image: The :class:`Image` to boot with.
         :param flavor: The :class:`Flavor` to boot onto.

releasenotes/notes/microversion-v2_72-d910ce07ec3948d6.yaml

@@ -0,0 +1,10 @@
+---
+features:
+  - |
+    Support has been added for `microversion 2.72`_. This microversion
+    allows creating a server using the ``nova boot`` command with
+    pre-existing ports having a ``resource_request`` value to enable
+    features such as guaranteed minimum bandwidth for `quality of service`_.
+
+    .. _microversion 2.72: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id65
+    .. _quality of service: https://docs.openstack.org/neutron/latest/admin/config-qos.html