devstack/lib/neutron_plugins/ovs_base
Jakub Libosvar a99ab7002c neutron: Use openvswitch firewall driver by default
openvswitch firewall has been in Neutron tree since Newton and has gone
through lots of improvements since including simple upgrade path from
the iptables hybrid driver.

We have a tempest job running in Neutron tree with openvswitch firewall
that's been voting and stable for a while. For neutron_tempest_plugin,
we have had the openvswitch firewall in use since the beginning.

This patch proposes openvswitch firewall driver to become a default
driver for openvswitch agent deployments.

Change-Id: If26d0180e459210511f25f1faa83dd8ccea25ff4
2018-05-14 16:16:08 +02:00

128 lines
4.1 KiB
Bash

#!/bin/bash
#
# common functions for ovs based plugin
# -------------------------------------
# Save trace setting
_XTRACE_NEUTRON_OVS_BASE=$(set +o | grep xtrace)
set +o xtrace
OVS_BRIDGE=${OVS_BRIDGE:-br-int}
# OVS recognize default 'system' datapath or 'netdev' for userspace datapath
OVS_DATAPATH_TYPE=${OVS_DATAPATH_TYPE:-system}
OVS_TUNNEL_BRIDGE=${OVS_TUNNEL_BRIDGE:-br-tun}
function is_neutron_ovs_base_plugin {
# Yes, we use OVS.
return 0
}
function _neutron_ovs_base_add_bridge {
local bridge=$1
local addbr_cmd="sudo ovs-vsctl -- --may-exist add-br $bridge"
if [ "$OVS_DATAPATH_TYPE" != "system" ] ; then
addbr_cmd="$addbr_cmd -- set Bridge $bridge datapath_type=${OVS_DATAPATH_TYPE}"
fi
$addbr_cmd
}
function _neutron_ovs_base_setup_bridge {
local bridge=$1
neutron-ovs-cleanup --config-file $NEUTRON_CONF
_neutron_ovs_base_add_bridge $bridge
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 [a-zA-Z\-]*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} -e ${OVS_TUNNEL_BRIDGE}); do
sudo ovs-vsctl del-br ${bridge}
done
}
function _neutron_ovs_base_install_ubuntu_dkms {
# install Dynamic Kernel Module Support packages if needed
local kernel_version
kernel_version=$(uname -r)
local kernel_major_minor
kernel_major_minor=`echo $kernel_version | cut -d. -f1-2`
# From kernel 3.13 on, openvswitch-datapath-dkms is not needed
if vercmp "$kernel_major_minor" "<" "3.13" ; 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
sudo systemctl enable openvswitch
elif is_suse; then
if [[ $DISTRO == "sle12" ]] && [[ $os_RELEASE -lt 12.2 ]]; then
restart_service openvswitch-switch
else
# workaround for https://bugzilla.suse.com/show_bug.cgi?id=1085971
if [[ $DISTRO =~ "tumbleweed" ]]; then
sudo sed -i -e "s,^OVS_USER_ID=.*,OVS_USER_ID='root:root'," /etc/sysconfig/openvswitch
fi
restart_service openvswitch || {
journalctl -xe || :
systemctl status openvswitch
}
fi
fi
}
function _neutron_ovs_base_configure_firewall_driver {
if [[ "$Q_USE_SECGROUP" == "True" ]]; then
iniset /$Q_PLUGIN_CONF_FILE securitygroup firewall_driver openvswitch
if ! running_in_container; then
enable_kernel_bridge_firewall
fi
else
iniset /$Q_PLUGIN_CONF_FILE securitygroup firewall_driver noop
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 $PUBLIC_BRIDGE
fi
neutron-ovs-cleanup --config-file $NEUTRON_CONF
if [[ "$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
_neutron_ovs_base_add_public_bridge
sudo ovs-vsctl br-set-external-id $PUBLIC_BRIDGE bridge-id $PUBLIC_BRIDGE
fi
}
function _neutron_ovs_base_add_public_bridge {
_neutron_ovs_base_add_bridge $PUBLIC_BRIDGE
set_mtu $PUBLIC_BRIDGE $PUBLIC_BRIDGE_MTU
}
function _neutron_ovs_base_configure_nova_vif_driver {
:
}
# Restore xtrace
$_XTRACE_NEUTRON_OVS_BASE