Admin utility: add in ability to update edge reservations

There may be certain cases when an admin wants to update the edge
reservations she/he can do it as follows:

1. Use the admin utility to update cpu reservetsions - use resource cpu
2. Use the admin utility to update memory reservations - use resource
   memory

The following can be set: limits, shares, reservations.

Change-Id: Ib14cc70bc162aae1b7bc0afdff1872b021d9a0c9

doc/source/admin_util.rst

@@ -48,6 +48,10 @@ Edges
 
     nsxadmin -o nsx-update -r edges -p edge-id=edge-55 --property syslog-server=none
 
+- Update reservations of an edge::
+
+    nsxadmin -o nsx-update -r edges -p edge-id=edge-55 --property resource=<cpu|memory> --property limit=<limit> --property reservation=<reservation> --property shares=<shares>
+
 Orphaned Edges
 ~~~~~~~~~~~~~~
 

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

@@ -279,6 +279,40 @@ def change_edge_appliance(edge_id):
         change_edge_ha(az.edge_ha, edge_id)
 
 
+def change_edge_appliance_reservations(properties):
+    reservations = {}
+    res = {}
+    if properties.get('limit'):
+        res['limit'] = properties.get('limit')
+    if properties.get('reservation'):
+        res['reservation'] = properties.get('reservation')
+    if properties.get('shares'):
+        res['shares'] = properties.get('shares')
+    resource = properties.get('resource')
+    if not res:
+        LOG.error(_LE("Please configure reservations"))
+        return
+    if resource == 'cpu':
+        reservations['cpuReservation'] = res
+    elif resource == 'memory':
+        reservations['memoryReservation'] = res
+    else:
+        LOG.error(_LE("Please configure resource"))
+        return
+    edge_id = properties.get('edge-id')
+    h, edge = nsxv.get_edge(edge_id)
+    appliances = edge['appliances']['appliances']
+    for appliance in appliances:
+        appliance.update(reservations)
+    request = {'appliances': appliances}
+    try:
+        nsxv.change_edge_appliance(edge_id, request)
+    except nsxv_exceptions.ResourceNotFound as e:
+        LOG.error(_LE("Edge %s not found"), edge_id)
+    except exceptions.NeutronException as e:
+        LOG.error(_LE("%s"), str(e))
+
+
 @admin_utils.output_header
 def nsx_update_edge(resource, event, trigger, **kwargs):
     """Update edge properties"""
@@ -288,7 +322,12 @@ def nsx_update_edge(resource, event, trigger, **kwargs):
                     "--property size=<size> or --property appliances=True. "
                     "For syslog, add --property syslog-server=<ip>|none and "
                     "(optional) --property syslog-server2=<ip> and/or "
-                    "(optional) --property syslog-proto=[tcp/udp]")
+                    "(optional) --property syslog-proto=[tcp/udp] "
+                    "For edge reservations, add "
+                    "--property resource=cpu|memory and "
+                    "(optional) --property limit=<limit> and/or "
+                    "(optional) --property shares=<shares> and/or "
+                    "(optional) --property reservation=<reservation>")
     if not kwargs.get('property'):
         LOG.error(usage_msg)
         return
@@ -312,6 +351,8 @@ def nsx_update_edge(resource, event, trigger, **kwargs):
             delete_edge_syslog(properties['edge-id'])
         else:
             change_edge_syslog(properties)
+    elif properties.get('resource'):
+        change_edge_appliance_reservations(properties)
     else:
         # no attribute was specified
         LOG.error(usage_msg)