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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: Ia8250db660216a5296cb6ba2af1538b8c90d187c
Closes-Bug: 1301552
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Paul Michali
Paul Michali committed Apr 10, 2014
commit 746dceeb68e6bd2bee4b06fc5744821ba801642c
16 changes: 15 additions & 1 deletion lib/neutron
Original file line number Diff line number Diff line change
Expand Up @@ -127,6 +127,10 @@ Q_L3_ROUTER_PER_TENANT=${Q_L3_ROUTER_PER_TENANT:-False}
# See _configure_neutron_common() for details about setting it up
declare -a Q_PLUGIN_EXTRA_CONF_FILES

# List of (optional) config files for VPN device drivers to use with
# the neutron-q-vpn agent
declare -a Q_VPN_EXTRA_CONF_FILES


Q_RR_CONF_FILE=$NEUTRON_CONF_DIR/rootwrap.conf
if [[ "$Q_USE_ROOTWRAP" == "False" ]]; then
Expand Down Expand Up @@ -495,7 +499,7 @@ 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
Expand Down Expand Up @@ -658,6 +662,7 @@ 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=$Q_USE_NAMESPACE
Expand All @@ -669,6 +674,15 @@ function _configure_neutron_l3_agent {
Q_FWAAS_CONF_FILE=$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
Expand Down