Re-use method to find xhyve net ip for vmwarevsphere (#87)

* fix(vmwarevsphere): find nfshost ip address correctly

find nfshost ip address in the exact same way as the xhyve driver

* fix: DRY up xhyve and vmwarevsphere code

Author: tomwganem

docker-machine-nfs.sh

@@ -292,11 +292,11 @@ lookupMandatoryProperties ()
     return
   fi
 
-  if [ "$prop_machine_driver" = "xhyve" ]; then
+  if [[ "$prop_machine_driver" =~ (xhyve|vmwarevsphere) ]]; then
     prop_network_id="Shared"
     prop_nfshost_ip=${prop_use_ip:-"$(ifconfig -m `route get $prop_machine_ip | awk '{if ($1 ~ /interface:/){print $2}}'` | awk 'sub(/inet /,""){print $1}')"}
     if [ "" = "${prop_nfshost_ip}" ]; then
-      echoError "Could not find the xhyve net IP!"; exit 1
+      echoError "Could not find a route to the ${prop_machine_driver} docker-machine"; exit 1
     fi
     echoSuccess "OK"
     return
@@ -315,19 +315,6 @@ lookupMandatoryProperties ()
     return
   fi
 
-  if [ "$prop_machine_driver" = "vmwarevsphere" ]; then
-    # Checks the routing table to find the ip address that your machine will use to connect to the docker-machine
-    machine_ip=$(netstat -rn -f inet | awk -v pattern="^$(route get ${prop_machine_ip} | grep gateway | awk '{print $2}')[^\/]" '$0 ~ pattern {print $2}')
-    prop_nfshost_ip=${prop_use_ip:-${machine_ip}}
-
-    if [ "" = "${prop_nfshost_ip}" ]; then
-      echoError "Could not find a route to the docker-machine!"; exit 1
-    fi
-
-    echoSuccess "OK"
-    return
-  fi
-
   if [ "$prop_machine_driver" != "virtualbox" ]; then
     echoError "Unsupported docker-machine driver: $prop_machine_driver"; exit 1
   fi