vmware-nsx: Vendor code split

Devstack support is added using Devstack's external plugins:
https://review.openstack.org/#/c/156526

Asside to the environment variables, the following should be added to
local.conf file:

enable_plugin vmware-nsx https://git.openstack.org/stackforge/vmware-nsx

for the nsx plugin:
    Q_PLUGIN=vmware_nsx
    enable_service vmware_nsx

for the nsx_v plugin:
    Q_PLUGIN=vmware_nsx_v

Partially-Implements: blueprint vmware-nsx-v

Change-Id: I4e03d4953bf9b5112ff75a252b61c27fadd04bf1
Signed-off-by: Roey Chen <roeyc@vmware.com>
diff --git a/lib/neutron_thirdparty/vmware_nsx b/lib/neutron_thirdparty/vmware_nsx
index 7027a29..03853a9 100644
--- a/lib/neutron_thirdparty/vmware_nsx
+++ b/lib/neutron_thirdparty/vmware_nsx
@@ -1,89 +1,2 @@
-#!/bin/bash
-#
-# VMware NSX
-# ----------
-
-# This third-party addition can be used to configure connectivity between a DevStack instance
-# and an NSX Gateway in dev/test environments. In order to use this correctly, the following
-# env variables need to be set (e.g. in your localrc file):
-#
-# * enable_service vmware_nsx        --> to execute this third-party addition
-# * PUBLIC_BRIDGE                    --> bridge used for external connectivity, typically br-ex
-# * NSX_GATEWAY_NETWORK_INTERFACE    --> interface used to communicate with the NSX Gateway
-# * NSX_GATEWAY_NETWORK_CIDR         --> CIDR to configure $PUBLIC_BRIDGE, e.g. 172.24.4.211/24
-
-# Save trace setting
-NSX3_XTRACE=$(set +o | grep xtrace)
-set +o xtrace
-
-# This is the interface that connects the Devstack instance
-# to an network that allows it to talk to the gateway for
-# testing purposes
-NSX_GATEWAY_NETWORK_INTERFACE=${NSX_GATEWAY_NETWORK_INTERFACE:-eth2}
-# Re-declare floating range as it's needed also in stop_vmware_nsx, which
-# is invoked by unstack.sh
-FLOATING_RANGE=${FLOATING_RANGE:-172.24.4.0/24}
-
-function configure_vmware_nsx {
-    :
-}
-
-function init_vmware_nsx {
-    if ! is_set NSX_GATEWAY_NETWORK_CIDR; then
-        NSX_GATEWAY_NETWORK_CIDR=$PUBLIC_NETWORK_GATEWAY/${FLOATING_RANGE#*/}
-        echo "The IP address to set on $PUBLIC_BRIDGE was not specified. "
-        echo "Defaulting to "$NSX_GATEWAY_NETWORK_CIDR
-    fi
-    # Make sure the interface is up, but not configured
-    sudo ip link set $NSX_GATEWAY_NETWORK_INTERFACE up
-    # Save and then flush the IP addresses on the interface
-    addresses=$(ip addr show dev $NSX_GATEWAY_NETWORK_INTERFACE | grep inet | awk {'print $2'})
-    sudo ip addr flush $NSX_GATEWAY_NETWORK_INTERFACE
-    # Use the PUBLIC Bridge to route traffic to the NSX gateway
-    # NOTE(armando-migliaccio): if running in a nested environment this will work
-    # only with mac learning enabled, portsecurity and security profiles disabled
-    # The public bridge might not exist for the NSX plugin if Q_USE_DEBUG_COMMAND is off
-    # Try to create it anyway
-    sudo ovs-vsctl --may-exist add-br $PUBLIC_BRIDGE
-    sudo ovs-vsctl --may-exist add-port $PUBLIC_BRIDGE $NSX_GATEWAY_NETWORK_INTERFACE
-    nsx_gw_net_if_mac=$(ip link show $NSX_GATEWAY_NETWORK_INTERFACE | awk '/ether/ {print $2}')
-    sudo ip link set address $nsx_gw_net_if_mac dev $PUBLIC_BRIDGE
-    for address in $addresses; do
-        sudo ip addr add dev $PUBLIC_BRIDGE $address
-    done
-    sudo ip addr add dev $PUBLIC_BRIDGE $NSX_GATEWAY_NETWORK_CIDR
-    sudo ip link set $PUBLIC_BRIDGE up
-}
-
-function install_vmware_nsx {
-    :
-}
-
-function start_vmware_nsx {
-    :
-}
-
-function stop_vmware_nsx {
-    if ! is_set NSX_GATEWAY_NETWORK_CIDR; then
-        NSX_GATEWAY_NETWORK_CIDR=$PUBLIC_NETWORK_GATEWAY/${FLOATING_RANGE#*/}
-        echo "The IP address expected on $PUBLIC_BRIDGE was not specified. "
-        echo "Defaulting to "$NSX_GATEWAY_NETWORK_CIDR
-    fi
-    sudo ip addr del $NSX_GATEWAY_NETWORK_CIDR dev $PUBLIC_BRIDGE
-    # Save and then flush remaining addresses on the interface
-    addresses=$(ip addr show dev $PUBLIC_BRIDGE | grep inet | awk {'print $2'})
-    sudo ip addr flush $PUBLIC_BRIDGE
-    # Try to detach physical interface from PUBLIC_BRIDGE
-    sudo ovs-vsctl del-port $NSX_GATEWAY_NETWORK_INTERFACE
-    # Restore addresses on NSX_GATEWAY_NETWORK_INTERFACE
-    for address in $addresses; do
-        sudo ip addr add dev $NSX_GATEWAY_NETWORK_INTERFACE $address
-    done
-}
-
-function check_vmware_nsx {
-    neutron-check-nsx-config $NEUTRON_CONF_DIR/plugins/vmware/nsx.ini
-}
-
-# Restore xtrace
-$NSX3_XTRACE
+# REVISIT(roeyc): this file left empty so that 'enable_service vmware_nsx'
+# continues to work.