From 8450a92a4d0299fff89717e665ce31d54731d3f0 Mon Sep 17 00:00:00 2001
From: Paul Michali <pcm@cisco.com>
Date: Wed, 2 Apr 2014 19:12:22 +0000
Subject: [PATCH] Devstack support for Neutron VPNaaS

Includes two enhancements to support VPNaaS and allow other
vendor implementation support. Goal is to provide a solution
for VPN .ini files until a more general solution can be defined
to handle all reference and vendor .ini files.

First, the /opt/stack/neutron/etc/vpn_agent.ini file is copied
to /etc/neutron, to allow the selected device drivers for agent
to be specified. Both reference and vendor implementations can
be uncommented in this file, prior to stacking.

Second, to allow vendor VPN implementations to provide an .ini
file to the agent at start-up time, an environment variable is
defined and can be set in the localrc to specify one or more
.ini files. The desire is NOT to include vendor settings in the
global vpn_agent.ini.

Change-Id: I5370ee57bbe326eff505a53055da4fddc0838de4
Closes-Bug: 1301552
---
 lib/neutron | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/lib/neutron b/lib/neutron
index 294fface3d..f110d9eff6 100644
--- a/lib/neutron
+++ b/lib/neutron
@@ -495,7 +495,7 @@ function start_neutron_agents {
         L3_CONF_FILES="$L3_CONF_FILES --config-file $Q_FWAAS_CONF_FILE"
     fi
     if is_service_enabled q-vpn; then
-        screen_it q-vpn "cd $NEUTRON_DIR && $AGENT_VPN_BINARY $L3_CONF_FILES"
+        screen_it q-vpn "cd $NEUTRON_DIR && $AGENT_VPN_BINARY $VPN_CONF_FILES"
     else
         screen_it q-l3 "cd $NEUTRON_DIR && python $AGENT_L3_BINARY $L3_CONF_FILES"
     fi
@@ -658,6 +658,7 @@ function _configure_neutron_dhcp_agent {
 }
 
 function _configure_neutron_l3_agent {
+    local cfg_file
     Q_L3_ENABLED=True
     # for l3-agent, only use per tenant router if we have namespaces
     Q_L3_ROUTER_PER_TENANT=$Q_USE_NAMESPACE
@@ -669,6 +670,15 @@ function _configure_neutron_l3_agent {
         Q_FWAAS_CONF_FILE=$NEUTRON_CONF_DIR/fwaas_driver.ini
     fi
 
+    if is_service_enabled q-vpn; then
+        Q_VPN_CONF_FILE=$NEUTRON_CONF_DIR/vpn_agent.ini
+        cp $NEUTRON_DIR/etc/vpn_agent.ini $Q_VPN_CONF_FILE
+        VPN_CONF_FILES="--config-file $NEUTRON_CONF --config-file=$Q_L3_CONF_FILE --config-file=$Q_VPN_CONF_FILE"
+        for cfg_file in ${Q_VPN_EXTRA_CONF_FILES[@]}; do
+            VPN_CONF_FILES+=" --config-file $cfg_file"
+        done
+    fi
+
     cp $NEUTRON_DIR/etc/l3_agent.ini $Q_L3_CONF_FILE
 
     iniset $Q_L3_CONF_FILE DEFAULT verbose True