devstack/lib/neutron_plugins/linuxbridge_agent
Armando Migliaccio 1c08b191fd Fix devstack with linuxbridge without l3 agent
The linuxbridge agent for Neutron expects that the public bridge will
already be created by the time it starts. On devstack, this only occurs
as part of the l3 agent configuration. If a compute node doesn't have an
l3 agent and is using a linuxbridge agent, then br-ex won't be created
and the process will not be able to start (causing stack.sh to fail).

This causes the gate-grenade-dsvm-neutron-linuxbridge-multinode-nv gate
to fail. To avoid the issue, skip the bridge mappings setup unless L3 is
configured. This is done in a backward compatible fashion: if localrc
uses the old q-l3 tags, the is_service_enabled neutron-l3 would not be
able to succeed.

Closes-Bug: #1643562

Change-Id: I292ff0dc080fb84b5f879ba2f00f03eff295b55b
2016-12-02 02:21:42 +00:00

105 lines
3.5 KiB
Bash

#!/bin/bash
#
# Neutron Linux Bridge L2 agent
# -----------------------------
# Save trace setting
_XTRACE_NEUTRON_LB=$(set +o | grep xtrace)
set +o xtrace
function neutron_lb_cleanup {
sudo brctl delbr $PUBLIC_BRIDGE
if [[ "$Q_ML2_TENANT_NETWORK_TYPE" = "vxlan" ]]; then
for port in $(sudo brctl show | grep -o -e [a-zA-Z\-]*tap[0-9a-f\-]* -e vxlan-[0-9a-f\-]*); do
sudo ip link delete $port
done
elif [[ "$Q_ML2_TENANT_NETWORK_TYPE" = "vlan" ]]; then
for port in $(sudo brctl show | grep -o -e [a-zA-Z\-]*tap[0-9a-f\-]* -e ${LB_PHYSICAL_INTERFACE}\.[0-9a-f\-]*); do
sudo ip link delete $port
done
fi
for bridge in $(sudo brctl show |grep -o -e brq[0-9a-f\-]*); do
sudo ip link set $bridge down
sudo brctl delbr $bridge
done
}
function is_neutron_ovs_base_plugin {
# linuxbridge doesn't use OVS
return 1
}
function neutron_plugin_create_nova_conf {
:
}
function neutron_plugin_install_agent_packages {
install_package bridge-utils
}
function neutron_plugin_configure_debug_command {
iniset $NEUTRON_TEST_CONFIG_FILE DEFAULT external_network_bridge
}
function neutron_plugin_configure_dhcp_agent {
local conf_file=$1
:
}
function neutron_plugin_configure_l3_agent {
local conf_file=$1
sudo brctl addbr $PUBLIC_BRIDGE
set_mtu $PUBLIC_BRIDGE $PUBLIC_BRIDGE_MTU
iniset $conf_file DEFAULT external_network_bridge
}
function neutron_plugin_configure_plugin_agent {
# Setup physical network interface mappings. Override
# ``LB_VLAN_RANGES`` and ``LB_INTERFACE_MAPPINGS`` in ``localrc`` for more
# complex physical network configurations.
if [[ "$LB_INTERFACE_MAPPINGS" == "" ]] && [[ "$PHYSICAL_NETWORK" != "" ]] && [[ "$LB_PHYSICAL_INTERFACE" != "" ]]; then
LB_INTERFACE_MAPPINGS=$PHYSICAL_NETWORK:$LB_PHYSICAL_INTERFACE
fi
if [[ "$PUBLIC_BRIDGE" != "" ]] && [[ "$PUBLIC_PHYSICAL_NETWORK" != "" ]]; then
if is_service_enabled q-l3 || is_service_enabled neutron-l3; then
iniset /$Q_PLUGIN_CONF_FILE linux_bridge bridge_mappings "$PUBLIC_PHYSICAL_NETWORK:$PUBLIC_BRIDGE"
fi
fi
if [[ "$LB_INTERFACE_MAPPINGS" != "" ]]; then
iniset /$Q_PLUGIN_CONF_FILE linux_bridge physical_interface_mappings $LB_INTERFACE_MAPPINGS
fi
if [[ "$Q_USE_SECGROUP" == "True" ]]; then
iniset /$Q_PLUGIN_CONF_FILE securitygroup firewall_driver neutron.agent.linux.iptables_firewall.IptablesFirewallDriver
enable_kernel_bridge_firewall
else
iniset /$Q_PLUGIN_CONF_FILE securitygroup firewall_driver neutron.agent.firewall.NoopFirewallDriver
fi
AGENT_BINARY="$NEUTRON_BIN_DIR/neutron-linuxbridge-agent"
iniset /$Q_PLUGIN_CONF_FILE agent tunnel_types $Q_TUNNEL_TYPES
# Configure vxlan tunneling
if [[ "$ENABLE_TENANT_TUNNELS" == "True" ]]; then
if [[ "$Q_ML2_TENANT_NETWORK_TYPE" == "vxlan" ]]; then
iniset /$Q_PLUGIN_CONF_FILE vxlan enable_vxlan "True"
iniset /$Q_PLUGIN_CONF_FILE vxlan local_ip $TUNNEL_ENDPOINT_IP
else
iniset /$Q_PLUGIN_CONF_FILE vxlan enable_vxlan "False"
fi
else
iniset /$Q_PLUGIN_CONF_FILE vxlan enable_vxlan "False"
fi
}
function neutron_plugin_setup_interface_driver {
local conf_file=$1
iniset $conf_file DEFAULT interface_driver linuxbridge
}
function neutron_plugin_check_adv_test_requirements {
is_service_enabled q-agt && is_service_enabled q-dhcp && return 0
}
# Restore xtrace
$_XTRACE_NEUTRON_LB