NSX|V New admin utility to list existing NSX policies

The use needs to configure nsx-policies using their IDs, which are hard
to find in the VC. The new admin utility will make this easier.

Change-Id: I8869272ff02389193ba546833b52734cf4b71ff2

doc/source/admin_util.rst

@@ -245,6 +245,10 @@ Security Groups, Firewall and Spoofguard
 
     nsxadmin -r firewall-sections -o nsx-reorder
 
+- List NSX service composer policies, that can be used in security groups::
+
+    nsxadmin -r firewall-sections -o list-policies
+
 - Update the default cluster section::
 
     nsxadmin -r firewall-sections -o nsx-update

vmware_nsx/shell/admin/plugins/nsxv/resources/securitygroups.py

@@ -12,6 +12,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import operator
 import re
 import xml.etree.ElementTree as et
 
@@ -376,6 +377,18 @@ def fix_security_groups(resource, event, trigger, **kwargs):
                 plugin._add_member_to_security_group(nsx_id, vnic_id)
 
 
+@admin_utils.output_header
+def list_policies(resource, event, trigger, **kwargs):
+    """List nsx service composer policies"""
+    context = n_context.get_admin_context()
+    with utils.NsxVPluginWrapper() as plugin:
+        policies = plugin.get_nsx_policies(context)
+
+    policies.sort(key=operator.itemgetter('id'))
+    _log_info("NSX service composer policies:", policies,
+              attrs=['id', 'name', 'description'])
+
+
 @admin_utils.output_header
 def migrate_sg_to_policy(resource, event, trigger, **kwargs):
     """Change the mode of a security group from rules to NSX policy"""
@@ -526,6 +539,10 @@ registry.subscribe(migrate_sg_to_policy,
                    constants.SECURITY_GROUPS,
                    shell.Operations.MIGRATE_TO_POLICY.value)
 
+registry.subscribe(list_policies,
+                   constants.SECURITY_GROUPS,
+                   shell.Operations.LIST_POLICIES.value)
+
 registry.subscribe(reorder_firewall_sections,
                    constants.FIREWALL_SECTIONS,
                    shell.Operations.NSX_REORDER.value)

vmware_nsx/shell/resources.py

@@ -59,6 +59,7 @@ class Operations(enum.Enum):
     MIGRATE_TO_DYNAMIC_CRITERIA = 'migrate-to-dynamic-criteria'
     NSX_MIGRATE_V_V3 = 'nsx-migrate-v-v3'
     MIGRATE_TO_POLICY = 'migrate-to-policy'
+    LIST_POLICIES = 'list-policies'
     UPDATE_LOGGING = 'update-logging'
     NSX_MIGRATE_EXCLUDE_PORTS = 'migrate-exclude-ports'
     MIGRATE_VDR_DHCP = 'migrate-vdr-dhcp'
@@ -193,6 +194,7 @@ nsxv_resources = {
                                         [Operations.LIST.value,
                                          Operations.FIX_MISMATCH.value,
                                          Operations.MIGRATE_TO_POLICY.value,
+                                         Operations.LIST_POLICIES.value,
                                          Operations.UPDATE_LOGGING.value]),
     constants.FIREWALL_NSX_GROUPS: Resource(
         constants.FIREWALL_NSX_GROUPS, [Operations.LIST.value,