devstack/lib/neutron_plugins/openvswitch_agent
Ihar Hrachyshka 7b5c7dce53 Introduce PUBLIC_BRIDGE_MTU variable to set br-ex MTU
This variable can be used to accommodate for underlying infrastructure
that does not provide full 1500-sized traffic, or maybe instead gives
access to Jumbo frames.

Change-Id: I38a80bac18673a30842a7b997d0669fed5aff976
Related-Bug: #1603268
2016-07-17 00:14:43 +02:00

132 lines
5.3 KiB
Bash

#!/bin/bash
#
# Neutron Open vSwitch L2 agent
# -----------------------------
# Save trace setting
_XTRACE_NEUTRON_OVSL2=$(set +o | grep xtrace)
set +o xtrace
source $TOP_DIR/lib/neutron_plugins/ovs_base
function neutron_plugin_create_nova_conf {
_neutron_ovs_base_configure_nova_vif_driver
if [ "$VIRT_DRIVER" == 'xenserver' ]; then
iniset $NOVA_CONF xenserver vif_driver nova.virt.xenapi.vif.XenAPIOpenVswitchDriver
iniset $NOVA_CONF xenserver ovs_integration_bridge $XEN_INTEGRATION_BRIDGE
# Disable nova's firewall so that it does not conflict with neutron
iniset $NOVA_CONF DEFAULT firewall_driver nova.virt.firewall.NoopFirewallDriver
fi
}
function neutron_plugin_install_agent_packages {
_neutron_ovs_base_install_agent_packages
}
function neutron_plugin_configure_debug_command {
_neutron_ovs_base_configure_debug_command
}
function neutron_plugin_configure_dhcp_agent {
local conf_file=$1
iniset $conf_file DEFAULT dhcp_agent_manager neutron.agent.dhcp_agent.DhcpAgentWithStateReport
}
function neutron_plugin_configure_l3_agent {
local conf_file=$1
_neutron_ovs_base_configure_l3_agent
iniset $conf_file DEFAULT l3_agent_manager neutron.agent.l3_agent.L3NATAgentWithStateReport
}
function neutron_plugin_configure_plugin_agent {
# Setup integration bridge
_neutron_ovs_base_setup_bridge $OVS_BRIDGE
_neutron_ovs_base_configure_firewall_driver
# Setup agent for tunneling
if [[ "$OVS_ENABLE_TUNNELING" == "True" ]]; then
iniset /$Q_PLUGIN_CONF_FILE ovs local_ip $TUNNEL_ENDPOINT_IP
iniset /$Q_PLUGIN_CONF_FILE ovs tunnel_bridge $OVS_TUNNEL_BRIDGE
fi
# Setup physical network bridge mappings. Override
# ``OVS_VLAN_RANGES`` and ``OVS_BRIDGE_MAPPINGS`` in ``localrc`` for more
# complex physical network configurations.
if [[ "$OVS_BRIDGE_MAPPINGS" == "" ]] && [[ "$PHYSICAL_NETWORK" != "" ]] && [[ "$OVS_PHYSICAL_BRIDGE" != "" ]]; then
OVS_BRIDGE_MAPPINGS=$PHYSICAL_NETWORK:$OVS_PHYSICAL_BRIDGE
# Configure bridge manually with physical interface as port for multi-node
_neutron_ovs_base_add_bridge $OVS_PHYSICAL_BRIDGE
fi
if [[ "$OVS_BRIDGE_MAPPINGS" != "" ]]; then
iniset /$Q_PLUGIN_CONF_FILE ovs bridge_mappings $OVS_BRIDGE_MAPPINGS
fi
AGENT_BINARY="$NEUTRON_BIN_DIR/neutron-openvswitch-agent"
if [ "$VIRT_DRIVER" == 'xenserver' ]; then
# Make a copy of our config for domU
sudo cp /$Q_PLUGIN_CONF_FILE "/$Q_PLUGIN_CONF_FILE.domU"
# change domU's config file to STACK_USER
sudo chown $STACK_USER:$STACK_USER /$Q_PLUGIN_CONF_FILE.domU
# Deal with Dom0's L2 Agent:
Q_RR_DOM0_COMMAND="$NEUTRON_BIN_DIR/neutron-rootwrap-xen-dom0 $Q_RR_CONF_FILE"
# For now, duplicate the xen configuration already found in nova.conf
iniset $Q_RR_CONF_FILE xenapi xenapi_connection_url "$XENAPI_CONNECTION_URL"
iniset $Q_RR_CONF_FILE xenapi xenapi_connection_username "$XENAPI_USER"
iniset $Q_RR_CONF_FILE xenapi xenapi_connection_password "$XENAPI_PASSWORD"
# Under XS/XCP, the ovs agent needs to target the dom0
# integration bridge. This is enabled by using a root wrapper
# that executes commands on dom0 via a XenAPI plugin.
# XenAPI does not support daemon rootwrap now, so set root_helper_daemon empty
iniset /$Q_PLUGIN_CONF_FILE agent root_helper "$Q_RR_DOM0_COMMAND"
iniset /$Q_PLUGIN_CONF_FILE agent root_helper_daemon ""
# Disable minimize polling, so that it can always detect OVS and Port changes
# This is a problem of xenserver + neutron, bug has been reported
# https://bugs.launchpad.net/neutron/+bug/1495423
iniset /$Q_PLUGIN_CONF_FILE agent minimize_polling False
# Set "physical" mapping
iniset /$Q_PLUGIN_CONF_FILE ovs bridge_mappings "physnet1:$FLAT_NETWORK_BRIDGE"
# XEN_INTEGRATION_BRIDGE is the integration bridge in dom0
iniset /$Q_PLUGIN_CONF_FILE ovs integration_bridge $XEN_INTEGRATION_BRIDGE
# Set up domU's L2 agent:
# Create a bridge "br-$VLAN_INTERFACE"
_neutron_ovs_base_add_bridge "br-$VLAN_INTERFACE"
# Add $VLAN_INTERFACE to that bridge
sudo ovs-vsctl -- --may-exist add-port "br-$VLAN_INTERFACE" $VLAN_INTERFACE
# Create external bridge and add port
_neutron_ovs_base_add_public_bridge
sudo ovs-vsctl -- --may-exist add-port $PUBLIC_BRIDGE $PUBLIC_INTERFACE
# Set bridge mappings to "physnet1:br-$GUEST_INTERFACE_DEFAULT"
iniset "/$Q_PLUGIN_CONF_FILE.domU" ovs bridge_mappings "physnet1:br-$VLAN_INTERFACE,physnet-ex:$PUBLIC_BRIDGE"
# Set integration bridge to domU's
iniset "/$Q_PLUGIN_CONF_FILE.domU" ovs integration_bridge $OVS_BRIDGE
# Set root wrap
iniset "/$Q_PLUGIN_CONF_FILE.domU" agent root_helper "$Q_RR_COMMAND"
fi
iniset /$Q_PLUGIN_CONF_FILE agent tunnel_types $Q_TUNNEL_TYPES
iniset /$Q_PLUGIN_CONF_FILE ovs datapath_type $OVS_DATAPATH_TYPE
}
function neutron_plugin_setup_interface_driver {
local conf_file=$1
iniset $conf_file DEFAULT interface_driver openvswitch
}
function neutron_plugin_check_adv_test_requirements {
is_service_enabled q-agt && is_service_enabled q-dhcp && return 0
}
# Restore xtrace
$_XTRACE_NEUTRON_OVSL2