NSX|P: Add control over realization interval

Admin util can set realization and purge cycle interval on
policy appliance

Depends-on: Ie60e3a04980ae9d6a747f80497168e923f119824
Change-Id: I91be76d8cd2741ec36f5f80529cd295a3ee6addb

doc/source/admin_util.rst

@@ -619,6 +619,10 @@ NSX Policy Plugin
 
     nsxadmin -r routers -o list
 
+- Set intent realization and purge cycle interval (in minutes) on policy manager::
+
+    nsxadmin -r system -o set -p realization_interval=1
+
 
 Client Certificate
 ~~~~~~~~~~~~~~~~~~

vmware_nsx/shell/admin/plugins/common/constants.py

@@ -36,6 +36,7 @@ SECURITY_GROUPS = 'security-groups'
 CONFIG = 'config'
 ORPHANED_NETWORKS = 'orphaned-networks'
 ORPHANED_ROUTERS = 'orphaned-routers'
+SYSTEM = 'system'
 
 # NSXV3 only Resource Constants
 PORTS = 'ports'

vmware_nsx/shell/admin/plugins/nsxp/resources/system.py

@@ -0,0 +1,60 @@
+# Copyright 2018 VMware, Inc.  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.
+
+from oslo_log import log as logging
+
+from vmware_nsx.shell.admin.plugins.common import constants
+from vmware_nsx.shell.admin.plugins.common import utils as admin_utils
+from vmware_nsx.shell.admin.plugins.nsxp.resources import utils as p_utils
+from vmware_nsx.shell import resources as shell
+
+from neutron_lib.callbacks import registry
+
+
+LOG = logging.getLogger(__name__)
+
+MIN_REALIZATION_INTERVAL = 1
+MAX_REALIZATION_INTERVAL = 10
+
+
+def set_system_parameters(resource, event, trigger, **kwargs):
+    """Set interval that controls realization and purge frequency
+
+    This setting is affecting NSX Policy Manager appliance.
+    """
+    if kwargs.get('property'):
+        properties = admin_utils.parse_multi_keyval_opt(kwargs['property'])
+        interval = properties.get('realization_interval')
+
+        if interval:
+            int_interval = int(interval)
+            if int_interval not in range(MIN_REALIZATION_INTERVAL,
+                                         MAX_REALIZATION_INTERVAL + 1):
+                LOG.info("Realization interval should be in range %d-%d",
+                         MIN_REALIZATION_INTERVAL, MAX_REALIZATION_INTERVAL)
+                return
+
+            nsxpolicy = p_utils.get_connected_nsxpolicy()
+            try:
+                nsxpolicy.set_realization_interval(int_interval)
+            except Exception as ex:
+                LOG.error("Failed to apply intent realization interval to "
+                          "policy appliance - %s", ex)
+
+            LOG.info("Intent realization interval set to %s min" % interval)
+
+
+registry.subscribe(set_system_parameters,
+                   constants.SYSTEM,
+                   shell.Operations.SET.value)

vmware_nsx/shell/resources.py

@@ -32,6 +32,7 @@ LOG = logging.getLogger(__name__)
 
 class Operations(enum.Enum):
     LIST = 'list'
+    SET = 'set'
     CLEAN = 'clean'
     CLEAN_ALL = 'clean-all'
     CREATE = 'create'
@@ -263,6 +264,8 @@ nsxp_resources = {
                                      Operations.CLEAN.value,
                                      Operations.IMPORT.value,
                                      Operations.NSX_LIST.value]),
+    constants.SYSTEM: Resource(constants.SYSTEM,
+                               [Operations.SET.value]),
 }
 
 nsxv3_resources_names = list(nsxv3_resources.keys())