devstack/lib/neutron_plugins/ovs_base
YAMAMOTO Takashi 0f18c23de8 ofagent: Support physical_interface_mappings
Also, add a knob to create a veth pair instead of a bridge
to provide host connectivity for l3-agent.  (Q_USE_PUBLIC_VETH)

Related: blueprint ofagent-physical-interface-mappings
Change-Id: I4c2538f0fd3fb05bfdb69e7e4c3a8462af42ba10
2014-10-17 01:18:40 +00:00

104 lines
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# common functions for ovs based plugin
# -------------------------------------
# Save trace setting
OVSB_XTRACE=$(set +o | grep xtrace)
set +o xtrace
OVS_BRIDGE=${OVS_BRIDGE:-br-int}
PUBLIC_BRIDGE=${PUBLIC_BRIDGE:-br-ex}
OVS_DATAPATH_TYPE=${OVS_DATAPATH_TYPE:-""}
function is_neutron_ovs_base_plugin {
# Yes, we use OVS.
return 0
}
function _neutron_ovs_base_setup_bridge {
local bridge=$1
neutron-ovs-cleanup
sudo ovs-vsctl --no-wait -- --may-exist add-br $bridge
if [[ $OVS_DATAPATH_TYPE != "" ]]; then
sudo ovs-vsctl set Bridge $bridge datapath_type=${OVS_DATAPATH_TYPE}
fi
sudo ovs-vsctl --no-wait br-set-external-id $bridge bridge-id $bridge
}
function neutron_ovs_base_cleanup {
# remove all OVS ports that look like Neutron created ports
for port in $(sudo ovs-vsctl list port | grep -o -e tap[0-9a-f\-]* -e q[rg]-[0-9a-f\-]*); do
sudo ovs-vsctl del-port ${port}
done
# remove all OVS bridges created by Neutron
for bridge in $(sudo ovs-vsctl list-br | grep -o -e ${OVS_BRIDGE} -e ${PUBLIC_BRIDGE}); do
sudo ovs-vsctl del-br ${bridge}
done
}
function _neutron_ovs_base_install_ubuntu_dkms {
# install Dynamic Kernel Module Support packages if needed
local kernel_version=$(uname -r)
local kernel_major_minor=`echo $kernel_version | cut -d. -f1-2`
# From kernel 3.13 on, openvswitch-datapath-dkms is not needed
if [ `vercmp_numbers "$kernel_major_minor" "3.13"` -lt "0" ]; then
install_package "dkms openvswitch-datapath-dkms linux-headers-$kernel_version"
fi
}
function _neutron_ovs_base_install_agent_packages {
# Install deps
install_package $(get_packages "openvswitch")
if is_ubuntu; then
_neutron_ovs_base_install_ubuntu_dkms
restart_service openvswitch-switch
elif is_fedora; then
restart_service openvswitch
elif is_suse; then
restart_service openvswitch-switch
fi
}
function _neutron_ovs_base_configure_debug_command {
iniset $NEUTRON_TEST_CONFIG_FILE DEFAULT external_network_bridge $PUBLIC_BRIDGE
}
function _neutron_ovs_base_configure_firewall_driver {
if [[ "$Q_USE_SECGROUP" == "True" ]]; then
iniset /$Q_PLUGIN_CONF_FILE securitygroup firewall_driver neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
else
iniset /$Q_PLUGIN_CONF_FILE securitygroup firewall_driver neutron.agent.firewall.NoopFirewallDriver
fi
}
function _neutron_ovs_base_configure_l3_agent {
if [ "$Q_USE_PROVIDERNET_FOR_PUBLIC" = "True" ]; then
iniset $Q_L3_CONF_FILE DEFAULT external_network_bridge ""
else
iniset $Q_L3_CONF_FILE DEFAULT external_network_bridge $PUBLIC_BRIDGE
fi
neutron-ovs-cleanup
if [[ "$Q_USE_PUBLIC_VETH" = "True" ]]; then
ip link show $Q_PUBLIC_VETH_INT > /dev/null 2>&1 ||
sudo ip link add $Q_PUBLIC_VETH_INT type veth \
peer name $Q_PUBLIC_VETH_EX
sudo ip link set $Q_PUBLIC_VETH_INT up
sudo ip link set $Q_PUBLIC_VETH_EX up
sudo ip addr flush dev $Q_PUBLIC_VETH_EX
else
# --no-wait causes a race condition if $PUBLIC_BRIDGE is not up when ip addr flush is called
sudo ovs-vsctl -- --may-exist add-br $PUBLIC_BRIDGE
sudo ovs-vsctl br-set-external-id $PUBLIC_BRIDGE bridge-id $PUBLIC_BRIDGE
# ensure no IP is configured on the public bridge
sudo ip addr flush dev $PUBLIC_BRIDGE
fi
}
function _neutron_ovs_base_configure_nova_vif_driver {
:
}
# Restore xtrace
$OVSB_XTRACE