Remove deprecated os-hosts CLIs and python API bindings

These were all deprecated in the 9.0.0 release in Pike
via change I79091edf5a2569e49e79deba312456fdcdee09e1 and
can now be removed. This will go into the 10.0.0 release.

Change-Id: I85a287ff2666c2dcdcbbc8fd6c2e285176f7a67a

9 files changed, 14 insertions, 593 deletions

diff --git a/novaclient/tests/functional/v2/legacy/test_readonly_nova.py b/novaclient/tests/functional/v2/legacy/test_readonly_nova.py
index bf1ebe4c..df88b8c6 100644
--- a/novaclient/tests/functional/v2/legacy/test_readonly_nova.py
+++ b/novaclient/tests/functional/v2/legacy/test_readonly_nova.py
@@ -51,9 +51,6 @@ class SimpleReadOnlyNovaClientTest(base.ClientTestBase):
     def test_admin_flavor_list(self):
         self.assertIn("Memory_MB", self.nova('flavor-list'))
 
-    def test_admin_host_list(self):
-        self.nova('host-list')
-
     def test_admin_hypervisor_list(self):
         self.nova('hypervisor-list')
 
diff --git a/novaclient/tests/unit/fixture_data/hosts.py b/novaclient/tests/unit/fixture_data/hosts.py
deleted file mode 100644
index c95cddeb..00000000
--- a/novaclient/tests/unit/fixture_data/hosts.py
+++ /dev/null
@@ -1,144 +0,0 @@
-# Licensed under the Apache License, Version 2.0 (the "License"); you may
-# not use this file except in compliance with the License. You may obtain
-# a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-# License for the specific language governing permissions and limitations
-# under the License.
-
-from novaclient.tests.unit.fixture_data import base
-
-
-class BaseFixture(base.Fixture):
-
-    base_url = 'os-hosts'
-
-    def setUp(self):
-        super(BaseFixture, self).setUp()
-
-        get_os_hosts_host = {
-            'host': [
-                {'resource': {'project': '(total)', 'host': 'dummy',
-                 'cpu': 16, 'memory_mb': 32234, 'disk_gb': 128}},
-                {'resource': {'project': '(used_now)', 'host': 'dummy',
-                 'cpu': 1, 'memory_mb': 2075, 'disk_gb': 45}},
-                {'resource': {'project': '(used_max)', 'host': 'dummy',
-                 'cpu': 1, 'memory_mb': 2048, 'disk_gb': 30}},
-                {'resource': {'project': 'admin', 'host': 'dummy',
-                 'cpu': 1, 'memory_mb': 2048, 'disk_gb': 30}}
-            ]
-        }
-
-        headers = self.json_headers
-
-        self.requests_mock.get(self.url('host'),
-                               json=get_os_hosts_host,
-                               headers=headers)
-
-        def get_os_hosts(request, context):
-            zone = 'nova1'
-            service = None
-
-            if request.query:
-                try:
-                    zone = request.qs['zone'][0]
-                except Exception:
-                    pass
-
-                try:
-                    service = request.qs['service'][0]
-                except Exception:
-                    pass
-
-            return {
-                'hosts': [
-                    {
-                        'host_name': 'host1',
-                        'service': service or 'nova-compute',
-                        'zone': zone
-                    },
-                    {
-                        'host_name': 'host1',
-                        'service': service or 'nova-cert',
-                        'zone': zone
-                    }
-                ]
-            }
-
-        self.requests_mock.get(self.url(),
-                               json=get_os_hosts,
-                               headers=headers)
-
-        get_os_hosts_sample_host = {
-            'host': [
-                {'resource': {'host': 'sample_host'}}
-            ],
-        }
-        self.requests_mock.get(self.url('sample_host'),
-                               json=get_os_hosts_sample_host,
-                               headers=headers)
-
-        self.requests_mock.put(self.url('sample_host', 1),
-                               json=self.put_host_1(),
-                               headers=headers)
-
-        self.requests_mock.put(self.url('sample_host', 2),
-                               json=self.put_host_2(),
-                               headers=headers)
-
-        self.requests_mock.put(self.url('sample_host', 3),
-                               json=self.put_host_3(),
-                               headers=headers)
-
-        self.requests_mock.get(self.url('sample_host', 'reboot'),
-                               json=self.get_host_reboot(),
-                               headers=headers)
-
-        self.requests_mock.get(self.url('sample_host', 'startup'),
-                               json=self.get_host_startup(),
-                               headers=headers)
-
-        self.requests_mock.get(self.url('sample_host', 'shutdown'),
-                               json=self.get_host_shutdown(),
-                               headers=headers)
-
-        def put_os_hosts_sample_host(request, context):
-            result = {'host': 'dummy'}
-            result.update(request.json())
-            return result
-
-        self.requests_mock.put(self.url('sample_host'),
-                               json=put_os_hosts_sample_host,
-                               headers=headers)
-
-
-class V1(BaseFixture):
-
-    def put_host_1(self):
-        return {'host': 'sample-host_1',
-                'status': 'enabled'}
-
-    def put_host_2(self):
-        return {'host': 'sample-host_2',
-                'maintenance_mode': 'on_maintenance'}
-
-    def put_host_3(self):
-        return {'host': 'sample-host_3',
-                'status': 'enabled',
-                'maintenance_mode': 'on_maintenance'}
-
-    def get_host_reboot(self):
-        return {'host': 'sample_host',
-                'power_action': 'reboot'}
-
-    def get_host_startup(self):
-        return {'host': 'sample_host',
-                'power_action': 'startup'}
-
-    def get_host_shutdown(self):
-        return {'host': 'sample_host',
-                'power_action': 'shutdown'}
diff --git a/novaclient/tests/unit/v2/fakes.py b/novaclient/tests/unit/v2/fakes.py
index 81947be3..ce36694e 100644
--- a/novaclient/tests/unit/v2/fakes.py
+++ b/novaclient/tests/unit/v2/fakes.py
@@ -1672,43 +1672,9 @@ class FakeSessionClient(base_client.SessionClient):
             'forced_down': False}})
 
     #
-    # Hosts
+    # Hypervisors
     #
 
-    def get_os_hosts(self, **kw):
-        zone = kw.get('zone', 'nova1')
-        return (200, {}, {'hosts': [{'host': 'host1',
-                                     'service': 'nova-compute',
-                                     'zone': zone},
-                                    {'host': 'host1',
-                                     'service': 'nova-cert',
-                                     'zone': zone}]})
-
-    def put_os_hosts_sample_host_1(self, body, **kw):
-        return (200, {}, {'host': 'sample-host_1',
-                          'status': 'enabled'})
-
-    def put_os_hosts_sample_host_2(self, body, **kw):
-        return (200, {}, {'host': 'sample-host_2',
-                          'maintenance_mode': 'on_maintenance'})
-
-    def put_os_hosts_sample_host_3(self, body, **kw):
-        return (200, {}, {'host': 'sample-host_3',
-                          'status': 'enabled',
-                          'maintenance_mode': 'on_maintenance'})
-
-    def get_os_hosts_sample_host_reboot(self, **kw):
-        return (200, {}, {'host': 'sample_host',
-                          'power_action': 'reboot'})
-
-    def get_os_hosts_sample_host_startup(self, **kw):
-        return (200, {}, {'host': 'sample_host',
-                          'power_action': 'startup'})
-
-    def get_os_hosts_sample_host_shutdown(self, **kw):
-        return (200, {}, {'host': 'sample_host',
-                          'power_action': 'shutdown'})
-
     def get_os_hypervisors(self, **kw):
         return (200, {}, {
             "hypervisors": [
diff --git a/novaclient/tests/unit/v2/test_hosts.py b/novaclient/tests/unit/v2/test_hosts.py
deleted file mode 100644
index a44a5e01..00000000
--- a/novaclient/tests/unit/v2/test_hosts.py
+++ /dev/null
@@ -1,148 +0,0 @@
-#
-#    Licensed under the Apache License, Version 2.0 (the "License"); you may
-#    not use this file except in compliance with the License. You may obtain
-#    a copy of the License at
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#    License for the specific language governing permissions and limitations
-#    under the License.
-
-import mock
-
-from novaclient import api_versions
-from novaclient import exceptions
-from novaclient.tests.unit.fixture_data import client
-from novaclient.tests.unit.fixture_data import hosts as data
-from novaclient.tests.unit import utils
-from novaclient.tests.unit.v2 import fakes
-from novaclient.v2 import hosts
-
-
-class HostsTest(utils.FixturedTestCase):
-
-    client_fixture_class = client.V1
-    data_fixture_class = data.V1
-
-    def setUp(self):
-        super(HostsTest, self).setUp()
-        self.warning_mock = mock.patch('warnings.warn').start()
-        self.addCleanup(self.warning_mock.stop)
-
-    def test_describe_resource(self):
-        hs = self.cs.hosts.get('host')
-        self.warning_mock.assert_called_once()
-        self.assert_request_id(hs, fakes.FAKE_REQUEST_ID_LIST)
-        self.assert_called('GET', '/os-hosts/host')
-        for h in hs:
-            self.assertIsInstance(h, hosts.Host)
-
-    def test_list_host(self):
-        hs = self.cs.hosts.list()
-        self.warning_mock.assert_called_once()
-        self.assert_request_id(hs, fakes.FAKE_REQUEST_ID_LIST)
-        self.assert_called('GET', '/os-hosts')
-        for h in hs:
-            self.assertIsInstance(h, hosts.Host)
-            self.assertEqual(h.zone, 'nova1')
-
-    def test_list_host_with_zone(self):
-        hs = self.cs.hosts.list('nova')
-        self.assert_request_id(hs, fakes.FAKE_REQUEST_ID_LIST)
-        self.assert_called('GET', '/os-hosts?zone=nova')
-        for h in hs:
-            self.assertIsInstance(h, hosts.Host)
-            self.assertEqual(h.zone, 'nova')
-
-    def test_update_enable(self):
-        host = self.cs.hosts.get('sample_host')[0]
-        values = {"status": "enabled"}
-        result = host.update(values)
-        # one warning for the get, one warning for the update
-        self.assertEqual(2, self.warning_mock.call_count)
-        self.assert_request_id(result, fakes.FAKE_REQUEST_ID_LIST)
-        self.assert_called('PUT', '/os-hosts/sample_host', values)
-        self.assertIsInstance(result, hosts.Host)
-
-    def test_update_maintenance(self):
-        host = self.cs.hosts.get('sample_host')[0]
-        values = {"maintenance_mode": "enable"}
-        result = host.update(values)
-        self.assert_request_id(result, fakes.FAKE_REQUEST_ID_LIST)
-        self.assert_called('PUT', '/os-hosts/sample_host', values)
-        self.assertIsInstance(result, hosts.Host)
-
-    def test_update_both(self):
-        host = self.cs.hosts.get('sample_host')[0]
-        values = {"status": "enabled",
-                  "maintenance_mode": "enable"}
-        result = host.update(values)
-        self.assert_request_id(result, fakes.FAKE_REQUEST_ID_LIST)
-        self.assert_called('PUT', '/os-hosts/sample_host', values)
-        self.assertIsInstance(result, hosts.Host)
-
-    def test_host_startup(self):
-        host = self.cs.hosts.get('sample_host')[0]
-        result = host.startup()
-        # one warning for the get, one warning for the action
-        self.assertEqual(2, self.warning_mock.call_count)
-        self.assert_request_id(result, fakes.FAKE_REQUEST_ID_LIST)
-        self.assert_called(
-            'GET', '/os-hosts/sample_host/startup')
-
-    def test_host_reboot(self):
-        host = self.cs.hosts.get('sample_host')[0]
-        result = host.reboot()
-        # one warning for the get, one warning for the action
-        self.assertEqual(2, self.warning_mock.call_count)
-        self.assert_request_id(result, fakes.FAKE_REQUEST_ID_LIST)
-        self.assert_called(
-            'GET', '/os-hosts/sample_host/reboot')
-
-    def test_host_shutdown(self):
-        host = self.cs.hosts.get('sample_host')[0]
-        result = host.shutdown()
-        # one warning for the get, one warning for the action
-        self.assertEqual(2, self.warning_mock.call_count)
-        self.assert_request_id(result, fakes.FAKE_REQUEST_ID_LIST)
-        self.assert_called(
-            'GET', '/os-hosts/sample_host/shutdown')
-
-    def test_hosts_repr(self):
-        hs = self.cs.hosts.get('host')
-        self.assertEqual('<Host: dummy>', repr(hs[0]))
-
-    def test_hosts_list_repr(self):
-        hs = self.cs.hosts.list()
-        for h in hs:
-            self.assertEqual('<Host: %s>' % h.host_name, repr(h))
-
-
-class DeprecatedHostsTestv2_43(utils.FixturedTestCase):
-    """Tests the os-hosts API bindings at microversion 2.43 to ensure
-    they fail with a 404 error.
-    """
-    client_fixture_class = client.V1
-
-    def setUp(self):
-        super(DeprecatedHostsTestv2_43, self).setUp()
-        self.cs.api_version = api_versions.APIVersion('2.43')
-
-    def test_get(self):
-        self.assertRaises(exceptions.VersionNotFoundForAPIMethod,
-                          self.cs.hosts.get, 'host')
-
-    def test_list(self):
-        self.assertRaises(exceptions.VersionNotFoundForAPIMethod,
-                          self.cs.hosts.list)
-
-    def test_update(self):
-        self.assertRaises(exceptions.VersionNotFoundForAPIMethod,
-                          self.cs.hosts.update, 'host', {"status": "enabled"})
-
-    def test_host_action(self):
-        self.assertRaises(exceptions.VersionNotFoundForAPIMethod,
-                          self.cs.hosts.host_action, 'host', 'reboot')
diff --git a/novaclient/tests/unit/v2/test_shell.py b/novaclient/tests/unit/v2/test_shell.py
index f1e5a9cd..a6c0ae4a 100644
--- a/novaclient/tests/unit/v2/test_shell.py
+++ b/novaclient/tests/unit/v2/test_shell.py
@@ -2454,66 +2454,6 @@ class ShellTest(utils.TestCase):
         self.assert_called(
             'DELETE', '/os-services/%s' % fakes.FAKE_SERVICE_UUID_1)
 
-    def test_host_list(self):
-        _, err = self.run_command('host-list')
-        # make sure we said it's deprecated
-        self.assertIn('WARNING: Command host-list is deprecated', err)
-        # and replaced with hypervisor-list
-        self.assertIn('hypervisor-list', err)
-        self.assert_called('GET', '/os-hosts')
-
-    def test_host_list_with_zone(self):
-        self.run_command('host-list --zone nova')
-        self.assert_called('GET', '/os-hosts?zone=nova')
-
-    def test_host_update_status(self):
-        _, err = self.run_command('host-update sample-host_1 --status enable')
-        # make sure we said it's deprecated
-        self.assertIn('WARNING: Command host-update is deprecated', err)
-        # and replaced with service-enable
-        self.assertIn('service-enable', err)
-        body = {'status': 'enable'}
-        self.assert_called('PUT', '/os-hosts/sample-host_1', body)
-
-    def test_host_update_maintenance(self):
-        _, err = (
-            self.run_command('host-update sample-host_2 --maintenance enable'))
-        # make sure we said it's deprecated
-        self.assertIn('WARNING: Command host-update is deprecated', err)
-        # and there is no replacement
-        self.assertIn('There is no replacement', err)
-        body = {'maintenance_mode': 'enable'}
-        self.assert_called('PUT', '/os-hosts/sample-host_2', body)
-
-    def test_host_update_multiple_settings(self):
-        _, err = self.run_command('host-update sample-host_3 '
-                                  '--status disable --maintenance enable')
-        # make sure we said it's deprecated
-        self.assertIn('WARNING: Command host-update is deprecated', err)
-        # and replaced with service-disable
-        self.assertIn('service-disable', err)
-        body = {'status': 'disable', 'maintenance_mode': 'enable'}
-        self.assert_called('PUT', '/os-hosts/sample-host_3', body)
-
-    def test_host_startup(self):
-        _, err = self.run_command('host-action sample-host --action startup')
-        # make sure we said it's deprecated
-        self.assertIn('WARNING: Command host-action is deprecated', err)
-        # and there is no replacement
-        self.assertIn('There is no replacement', err)
-        self.assert_called(
-            'GET', '/os-hosts/sample-host/startup')
-
-    def test_host_shutdown(self):
-        self.run_command('host-action sample-host --action shutdown')
-        self.assert_called(
-            'GET', '/os-hosts/sample-host/shutdown')
-
-    def test_host_reboot(self):
-        self.run_command('host-action sample-host --action reboot')
-        self.assert_called(
-            'GET', '/os-hosts/sample-host/reboot')
-
     def test_host_evacuate_v2_14(self):
         self.run_command('host-evacuate hyper --target target_hyper',
                          api_version='2.14')
diff --git a/novaclient/v2/client.py b/novaclient/v2/client.py
index 5a94275e..4d02b280 100644
--- a/novaclient/v2/client.py
+++ b/novaclient/v2/client.py
@@ -26,7 +26,6 @@ from novaclient.v2 import cells
 from novaclient.v2 import contrib
 from novaclient.v2 import flavor_access
 from novaclient.v2 import flavors
-from novaclient.v2 import hosts
 from novaclient.v2 import hypervisors
 from novaclient.v2 import images
 from novaclient.v2 import instance_action
@@ -156,7 +155,6 @@ class Client(object):
         self.virtual_interfaces = \
             virtual_interfaces.VirtualInterfaceManager(self)
         self.aggregates = aggregates.AggregateManager(self)
-        self.hosts = hosts.HostManager(self)
         self.hypervisors = hypervisors.HypervisorManager(self)
         self.hypervisor_stats = hypervisors.HypervisorStatsManager(self)
         self.services = services.ServiceManager(self)
diff --git a/novaclient/v2/hosts.py b/novaclient/v2/hosts.py
deleted file mode 100644
index be7ca58e..00000000
--- a/novaclient/v2/hosts.py
+++ /dev/null
@@ -1,112 +0,0 @@
-# Copyright 2011 OpenStack Foundation
-# All Rights Reserved.
-#
-#    Licensed under the Apache License, Version 2.0 (the "License"); you may
-#    not use this file except in compliance with the License. You may obtain
-#    a copy of the License at
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#    License for the specific language governing permissions and limitations
-#    under the License.
-
-"""
-DEPRECATED host interface
-"""
-import warnings
-
-from novaclient import api_versions
-from novaclient import base
-from novaclient.i18n import _
-
-
-HOSTS_DEPRECATION_WARNING = (
-    _('The os-hosts API is deprecated. This API binding will be removed '
-      'in the first major release after the Nova server 16.0.0 Pike release.')
-)
-
-
-class Host(base.Resource):
-    """DEPRECATED"""
-    def __repr__(self):
-        return "<Host: %s>" % self.host
-
-    def _add_details(self, info):
-        dico = 'resource' in info and info['resource'] or info
-        for (k, v) in dico.items():
-            setattr(self, k, v)
-
-    @api_versions.wraps("2.0", "2.42")
-    def update(self, values):
-        return self.manager.update(self.host, values)
-
-    @api_versions.wraps("2.0", "2.42")
-    def startup(self):
-        return self.manager.host_action(self.host, 'startup')
-
-    @api_versions.wraps("2.0", "2.42")
-    def shutdown(self):
-        return self.manager.host_action(self.host, 'shutdown')
-
-    @api_versions.wraps("2.0", "2.42")
-    def reboot(self):
-        return self.manager.host_action(self.host, 'reboot')
-
-    @property
-    def host_name(self):
-        return self.host
-
-    @host_name.setter
-    def host_name(self, value):
-        # A host from hosts.list() has the attribute "host_name" instead of
-        # "host." This sets "host" if that's the case. Even though it doesn't
-        # exactly mirror the response format, it enables users to work with
-        # host objects from list and non-list operations interchangeably.
-        self.host = value
-
-
-class HostManager(base.ManagerWithFind):
-    resource_class = Host
-
-    @api_versions.wraps("2.0", "2.42")
-    def get(self, host):
-        """
-        DEPRECATED Describes cpu/memory/hdd info for host.
-
-        :param host: destination host name.
-        """
-        warnings.warn(HOSTS_DEPRECATION_WARNING, DeprecationWarning)
-        return self._list("/os-hosts/%s" % host, "host")
-
-    @api_versions.wraps("2.0", "2.42")
-    def update(self, host, values):
-        """DEPRECATED Update status or maintenance mode for the host."""
-        warnings.warn(HOSTS_DEPRECATION_WARNING, DeprecationWarning)
-        return self._update("/os-hosts/%s" % host, values)
-
-    @api_versions.wraps("2.0", "2.42")
-    def host_action(self, host, action):
-        """
-        DEPRECATED Perform an action on a host.
-
-        :param host: The host to perform an action
-        :param action: The action to perform
-        :returns: An instance of novaclient.base.TupleWithMeta
-        """
-        warnings.warn(HOSTS_DEPRECATION_WARNING, DeprecationWarning)
-        url = '/os-hosts/%s/%s' % (host, action)
-        resp, body = self.api.client.get(url)
-        return base.TupleWithMeta((resp, body), resp)
-
-    @api_versions.wraps("2.0", "2.42")
-    def list(self, zone=None):
-        warnings.warn(HOSTS_DEPRECATION_WARNING, DeprecationWarning)
-        url = '/os-hosts'
-        if zone:
-            url = '/os-hosts?zone=%s' % zone
-        return self._list(url, "hosts")
-
-    list_all = list
diff --git a/novaclient/v2/shell.py b/novaclient/v2/shell.py
index d1f1bfad..ca6a54e2 100644
--- a/novaclient/v2/shell.py
+++ b/novaclient/v2/shell.py
@@ -51,26 +51,6 @@ logger = logging.getLogger(__name__)
 
 # NOTE(mriedem): Remove this along with the deprecated commands in the first
 # major python-novaclient release AFTER the nova server 16.0.0 Pike release.
-def emit_hosts_deprecation_warning(command_name, replacement=None):
-    if replacement is None:
-        print(_('WARNING: Command %s is deprecated and will be removed '
-                'in the first major release after the Nova server 16.0.0 '
-                'Pike release. There is no replacement or alternative for '
-                'this command. Specify --os-compute-api-version less than '
-                '2.43 to continue using this command until it is removed.') %
-              command_name, file=sys.stderr)
-    else:
-        print(_('WARNING: Command %(command)s is deprecated and will be '
-                'removed in the first major release after the Nova server '
-                '16.0.0 Pike release. Use %(replacement)s instead. Specify '
-                '--os-compute-api-version less than 2.43 to continue using '
-                'this command until it is removed.') %
-              {'command': command_name, 'replacement': replacement},
-              file=sys.stderr)
-
-
-# NOTE(mriedem): Remove this along with the deprecated commands in the first
-# major python-novaclient release AFTER the nova server 16.0.0 Pike release.
 def emit_fixed_floating_deprecation_warning(command_name):
     print(_('WARNING: Command %s is deprecated and will be removed '
             'in the first major release after the Nova server 16.0.0 '
@@ -3598,75 +3578,6 @@ def do_service_delete(cs, args):
     cs.services.delete(args.id)
 
 
-@utils.arg('host', metavar='<hostname>', help=_('Name of host.'))
-def do_host_describe(cs, args):
-    """DEPRECATED Describe a specific host."""
-    emit_hosts_deprecation_warning('host-describe', 'hypervisor-show')
-
-    result = cs.hosts.get(args.host)
-    columns = ["HOST", "PROJECT", "cpu", "memory_mb", "disk_gb"]
-    utils.print_list(result, columns)
-
-
-@utils.arg(
-    '--zone',
-    metavar='<zone>',
-    default=None,
-    help=_('Filters the list, returning only those hosts in the availability '
-           'zone <zone>.'))
-def do_host_list(cs, args):
-    """DEPRECATED List all hosts by service."""
-    emit_hosts_deprecation_warning('host-list', 'hypervisor-list')
-
-    columns = ["host_name", "service", "zone"]
-    result = cs.hosts.list(args.zone)
-    utils.print_list(result, columns)
-
-
-@utils.arg('host', metavar='<hostname>', help=_('Name of host.'))
-@utils.arg(
-    '--status', metavar='<enable|disable>', default=None, dest='status',
-    help=_('Either enable or disable a host.'))
-@utils.arg(
-    '--maintenance',
-    metavar='<enable|disable>',
-    default=None,
-    dest='maintenance',
-    help=_('Either put or resume host to/from maintenance.'))
-def do_host_update(cs, args):
-    """DEPRECATED Update host settings."""
-    if args.status == 'enable':
-        emit_hosts_deprecation_warning('host-update', 'service-enable')
-    elif args.status == 'disable':
-        emit_hosts_deprecation_warning('host-update', 'service-disable')
-    else:
-        emit_hosts_deprecation_warning('host-update')
-
-    updates = {}
-    columns = ["HOST"]
-    if args.status:
-        updates['status'] = args.status
-        columns.append("status")
-    if args.maintenance:
-        updates['maintenance_mode'] = args.maintenance
-        columns.append("maintenance_mode")
-    result = cs.hosts.update(args.host, updates)
-    utils.print_list([result], columns)
-
-
-@utils.arg('host', metavar='<hostname>', help=_('Name of host.'))
-@utils.arg(
-    '--action', metavar='<action>', dest='action',
-    choices=['startup', 'shutdown', 'reboot'],
-    help=_('A power action: startup, reboot, or shutdown.'))
-def do_host_action(cs, args):
-    """DEPRECATED Perform a power action on a host."""
-    emit_hosts_deprecation_warning('host-action')
-
-    result = cs.hosts.host_action(args.host, args.action)
-    utils.print_list([result], ['HOST', 'power_action'])
-
-
 def _find_hypervisor(cs, hypervisor):
     """Get a hypervisor by name or ID."""
     return utils.find_resource(cs.hypervisors, hypervisor)
diff --git a/releasenotes/notes/remove-hosts-d08855550c40b9c6.yaml b/releasenotes/notes/remove-hosts-d08855550c40b9c6.yaml
new file mode 100644
index 00000000..06f466d4
--- /dev/null
+++ b/releasenotes/notes/remove-hosts-d08855550c40b9c6.yaml
@@ -0,0 +1,13 @@
+---
+upgrade:
+  - |
+    The following CLIs and their backing API bindings were deprecated and
+    capped at microversion 2.43:
+
+    * ``nova host-describe`` - superseded by ``nova hypervisor-show``
+    * ``nova host-list`` - superseded by ``nova hypervisor-list``
+    * ``nova host-update`` - superseded by ``nova service-enable`` and
+      ``nova service-disable``
+    * ``nova host-action`` - no alternative by design
+
+    The CLIs and API bindings have now been removed.