devstack/lib/neutron_plugins/services/l3
Harald Jensås 16ac21f0da
Add OVN_BRIDGE_MAPPINGS - support extra bridge
Add's the OVN_BRIDGE_MAPPINGS variable to ovn_agent.
Uses the same format as OVS_BRIDGE_MAPPINGS, it defaults
to "$PYSICAL_NETWORK:$PUBLIC_BRIDGE".

This enables use of providernet for public network and
setting up additional bridges, for example a for baremetal.

Example:
  Q_USE_PROVIDER_NETWORKING="True"
  OVS_PHYSICAL_BRIDGE="brbm"
  PHYSICAL_NETWORK="mynetwork"
  PUBLIC_PHYSICAL_NETWORK="public"
  PUBLIC_BRIDGE="br-ex"
  OVN_BRIDGE_MAPPINGS="public:br-ex,mynetwork:brbm"

Change-Id: I37317251bbe95d64de06d6232c2d472a98c0ee4d
2023-09-04 13:45:23 +02:00

447 lines
22 KiB
Bash

#!/bin/bash
# Subnet IP version
IP_VERSION=${IP_VERSION:-"4+6"}
# Validate IP_VERSION
if [[ $IP_VERSION != "4" ]] && [[ $IP_VERSION != "6" ]] && [[ $IP_VERSION != "4+6" ]]; then
die $LINENO "IP_VERSION must be either 4, 6, or 4+6"
fi
# Specify if the initial private and external networks should be created
NEUTRON_CREATE_INITIAL_NETWORKS=${NEUTRON_CREATE_INITIAL_NETWORKS:-True}
## Provider Network Information
PROVIDER_SUBNET_NAME=${PROVIDER_SUBNET_NAME:-"provider_net"}
IPV6_PROVIDER_SUBNET_NAME=${IPV6_PROVIDER_SUBNET_NAME:-"provider_net_v6"}
IPV6_PROVIDER_FIXED_RANGE=${IPV6_PROVIDER_FIXED_RANGE:-}
IPV6_PROVIDER_NETWORK_GATEWAY=${IPV6_PROVIDER_NETWORK_GATEWAY:-}
PUBLIC_BRIDGE=${PUBLIC_BRIDGE:-br-ex}
PUBLIC_BRIDGE_MTU=${PUBLIC_BRIDGE_MTU:-1500}
# If Q_ASSIGN_GATEWAY_TO_PUBLIC_BRIDGE=True, assign the gateway IP of the public
# subnet to the public bridge interface even if Q_USE_PROVIDERNET_FOR_PUBLIC is
# used.
Q_ASSIGN_GATEWAY_TO_PUBLIC_BRIDGE=${Q_ASSIGN_GATEWAY_TO_PUBLIC_BRIDGE:-True}
# The name of the default router
Q_ROUTER_NAME=${Q_ROUTER_NAME:-router1}
# If Q_USE_PUBLIC_VETH=True, create and use a veth pair instead of
# PUBLIC_BRIDGE. This is intended to be used with
# Q_USE_PROVIDERNET_FOR_PUBLIC=True.
Q_USE_PUBLIC_VETH=${Q_USE_PUBLIC_VETH:-False}
Q_PUBLIC_VETH_EX=${Q_PUBLIC_VETH_EX:-veth-pub-ex}
Q_PUBLIC_VETH_INT=${Q_PUBLIC_VETH_INT:-veth-pub-int}
# The next variable is configured by plugin
# e.g. _configure_neutron_l3_agent or lib/neutron_plugins/*
#
# L3 routers exist per tenant
Q_L3_ROUTER_PER_TENANT=${Q_L3_ROUTER_PER_TENANT:-True}
# Use providernet for public network
#
# If Q_USE_PROVIDERNET_FOR_PUBLIC=True, use a provider network
# for external interface of neutron l3-agent. In that case,
# PUBLIC_PHYSICAL_NETWORK specifies provider:physical_network value
# used for the network. In case of ofagent, you should add the
# corresponding entry to your OFAGENT_PHYSICAL_INTERFACE_MAPPINGS.
# For openvswitch agent, you should add the corresponding entry to
# your OVS_BRIDGE_MAPPINGS and for OVN add the corresponding entry
# to your OVN_BRIDGE_MAPPINGS.
#
# eg. (ofagent)
# Q_USE_PROVIDERNET_FOR_PUBLIC=True
# Q_USE_PUBLIC_VETH=True
# PUBLIC_PHYSICAL_NETWORK=public
# OFAGENT_PHYSICAL_INTERFACE_MAPPINGS=public:veth-pub-int
#
# eg. (openvswitch agent)
# Q_USE_PROVIDERNET_FOR_PUBLIC=True
# PUBLIC_PHYSICAL_NETWORK=public
# OVS_BRIDGE_MAPPINGS=public:br-ex
#
# eg. (ovn agent)
# Q_USER_PROVIDERNET_FOR_PUBLIC=True
# PUBLIC_PHYSICAL_NETWORK=public
# OVN_BRIDGE_MAPPINGS=public:br-ex
#
# The provider-network-type defaults to flat, however, the values
# PUBLIC_PROVIDERNET_TYPE and PUBLIC_PROVIDERNET_SEGMENTATION_ID could
# be set to specify the parameters for an alternate network type.
Q_USE_PROVIDERNET_FOR_PUBLIC=${Q_USE_PROVIDERNET_FOR_PUBLIC:-True}
PUBLIC_PHYSICAL_NETWORK=${PUBLIC_PHYSICAL_NETWORK:-public}
# Generate 40-bit IPv6 Global ID to comply with RFC 4193
IPV6_GLOBAL_ID=`uuidgen | sed s/-//g | cut -c 23- | sed -e "s/\(..\)\(....\)\(....\)/\1:\2:\3/"`
# IPv6 gateway and subnet defaults, in case they are not customized in localrc
IPV6_RA_MODE=${IPV6_RA_MODE:-slaac}
IPV6_ADDRESS_MODE=${IPV6_ADDRESS_MODE:-slaac}
IPV6_PUBLIC_SUBNET_NAME=${IPV6_PUBLIC_SUBNET_NAME:-ipv6-public-subnet}
IPV6_PRIVATE_SUBNET_NAME=${IPV6_PRIVATE_SUBNET_NAME:-ipv6-private-subnet}
IPV6_ADDRS_SAFE_TO_USE=${IPV6_ADDRS_SAFE_TO_USE:-fd$IPV6_GLOBAL_ID::/56}
# if we got larger than a /64 safe to use, we only use the first /64 to
# avoid side effects outlined in rfc7421
FIXED_RANGE_V6=${FIXED_RANGE_V6:-$(echo $IPV6_ADDRS_SAFE_TO_USE | awk -F '/' '{ print $1"/"($2>63 ? $2 : 64) }')}
IPV6_PRIVATE_NETWORK_GATEWAY=${IPV6_PRIVATE_NETWORK_GATEWAY:-}
IPV6_PUBLIC_RANGE=${IPV6_PUBLIC_RANGE:-2001:db8::/64}
IPV6_PUBLIC_NETWORK_GATEWAY=${IPV6_PUBLIC_NETWORK_GATEWAY:-2001:db8::2}
IPV6_ROUTER_GW_IP=${IPV6_ROUTER_GW_IP:-2001:db8::1}
# Gateway and subnet defaults, in case they are not customized in localrc
NETWORK_GATEWAY=${NETWORK_GATEWAY:-}
PUBLIC_NETWORK_GATEWAY=${PUBLIC_NETWORK_GATEWAY:-}
PRIVATE_SUBNET_NAME=${PRIVATE_SUBNET_NAME:-"private-subnet"}
PUBLIC_SUBNET_NAME=${PUBLIC_SUBNET_NAME:-"public-subnet"}
# Subnetpool defaults
USE_SUBNETPOOL=${USE_SUBNETPOOL:-True}
SUBNETPOOL_NAME_V4=${SUBNETPOOL_NAME:-"shared-default-subnetpool-v4"}
SUBNETPOOL_NAME_V6=${SUBNETPOOL_NAME:-"shared-default-subnetpool-v6"}
SUBNETPOOL_PREFIX_V4=${SUBNETPOOL_PREFIX_V4:-$IPV4_ADDRS_SAFE_TO_USE}
SUBNETPOOL_PREFIX_V6=${SUBNETPOOL_PREFIX_V6:-$IPV6_ADDRS_SAFE_TO_USE}
SUBNETPOOL_SIZE_V4=${SUBNETPOOL_SIZE_V4:-26}
SUBNETPOOL_SIZE_V6=${SUBNETPOOL_SIZE_V6:-64}
default_v4_route_devs=$(ip -4 route | grep ^default | awk '{print $5}')
default_v6_route_devs=$(ip -6 route list match default table all | grep via | awk '{print $5}')
function _determine_config_l3 {
local opts="--config-file $NEUTRON_CONF --config-file $Q_L3_CONF_FILE"
echo "$opts"
}
function _configure_neutron_l3_agent {
cp $NEUTRON_DIR/etc/l3_agent.ini.sample $Q_L3_CONF_FILE
iniset $Q_L3_CONF_FILE DEFAULT debug $ENABLE_DEBUG_LOG_LEVEL
iniset $Q_L3_CONF_FILE AGENT root_helper "$Q_RR_COMMAND"
if [[ "$Q_USE_ROOTWRAP_DAEMON" == "True" ]]; then
iniset $Q_L3_CONF_FILE AGENT root_helper_daemon "$Q_RR_DAEMON_COMMAND"
fi
_neutron_setup_interface_driver $Q_L3_CONF_FILE
neutron_plugin_configure_l3_agent $Q_L3_CONF_FILE
_configure_public_network_connectivity
}
# Explicitly set router id in l3 agent configuration
function _neutron_set_router_id {
if [[ "$Q_L3_ROUTER_PER_TENANT" == "False" ]]; then
iniset $Q_L3_CONF_FILE DEFAULT router_id $ROUTER_ID
fi
}
# Get ext_gw_interface depending on value of Q_USE_PUBLIC_VETH
function _neutron_get_ext_gw_interface {
if [[ "$Q_USE_PUBLIC_VETH" == "True" ]]; then
echo $Q_PUBLIC_VETH_EX
else
# Disable in-band as we are going to use local port
# to communicate with VMs
sudo ovs-vsctl set Bridge $PUBLIC_BRIDGE \
other_config:disable-in-band=true
echo $PUBLIC_BRIDGE
fi
}
function create_neutron_initial_network {
# Allow drivers that need to create an initial network to do so here
if type -p neutron_plugin_create_initial_network_profile > /dev/null; then
neutron_plugin_create_initial_network_profile $PHYSICAL_NETWORK
fi
if is_networking_extension_supported "auto-allocated-topology"; then
if [[ "$USE_SUBNETPOOL" == "True" ]]; then
if [[ "$IP_VERSION" =~ 4.* ]]; then
SUBNETPOOL_V4_ID=$(openstack --os-cloud devstack-admin --os-region "$REGION_NAME" subnet pool create $SUBNETPOOL_NAME_V4 --default-prefix-length $SUBNETPOOL_SIZE_V4 --pool-prefix $SUBNETPOOL_PREFIX_V4 --share --default -f value -c id)
fi
if [[ "$IP_VERSION" =~ .*6 ]]; then
SUBNETPOOL_V6_ID=$(openstack --os-cloud devstack-admin --os-region "$REGION_NAME" subnet pool create $SUBNETPOOL_NAME_V6 --default-prefix-length $SUBNETPOOL_SIZE_V6 --pool-prefix $SUBNETPOOL_PREFIX_V6 --share --default -f value -c id)
fi
fi
fi
if is_provider_network; then
die_if_not_set $LINENO PHYSICAL_NETWORK "You must specify the PHYSICAL_NETWORK"
die_if_not_set $LINENO PROVIDER_NETWORK_TYPE "You must specify the PROVIDER_NETWORK_TYPE"
NET_ID=$(openstack --os-cloud devstack-admin-demo --os-region "$REGION_NAME" network create $PHYSICAL_NETWORK --provider-network-type $PROVIDER_NETWORK_TYPE --provider-physical-network "$PHYSICAL_NETWORK" ${SEGMENTATION_ID:+--provider-segment $SEGMENTATION_ID} --share -f value -c id)
die_if_not_set $LINENO NET_ID "Failure creating NET_ID for $PHYSICAL_NETWORK"
if [[ "$IP_VERSION" =~ 4.* ]]; then
if [ -z $SUBNETPOOL_V4_ID ]; then
fixed_range_v4=$FIXED_RANGE
fi
SUBNET_ID=$(openstack --os-cloud devstack --os-region "$REGION_NAME" subnet create --ip-version 4 ${ALLOCATION_POOL:+--allocation-pool $ALLOCATION_POOL} $PROVIDER_SUBNET_NAME --gateway $NETWORK_GATEWAY ${SUBNETPOOL_V4_ID:+--subnet-pool $SUBNETPOOL_V4_ID} --network $NET_ID ${fixed_range_v4:+--subnet-range $fixed_range_v4} -f value -c id)
die_if_not_set $LINENO SUBNET_ID "Failure creating SUBNET_ID for $PROVIDER_SUBNET_NAME"
fi
if [[ "$IP_VERSION" =~ .*6 ]]; then
die_if_not_set $LINENO IPV6_PROVIDER_FIXED_RANGE "IPV6_PROVIDER_FIXED_RANGE has not been set, but Q_USE_PROVIDER_NETWORKING is true and IP_VERSION includes 6"
die_if_not_set $LINENO IPV6_PROVIDER_NETWORK_GATEWAY "IPV6_PROVIDER_NETWORK_GATEWAY has not been set, but Q_USE_PROVIDER_NETWORKING is true and IP_VERSION includes 6"
if [ -z $SUBNETPOOL_V6_ID ]; then
fixed_range_v6=$IPV6_PROVIDER_FIXED_RANGE
fi
IPV6_SUBNET_ID=$(openstack --os-cloud devstack --os-region "$REGION_NAME" subnet create --ip-version 6 --gateway $IPV6_PROVIDER_NETWORK_GATEWAY $IPV6_PROVIDER_SUBNET_NAME ${SUBNETPOOL_V6_ID:+--subnet-pool $SUBNETPOOL_V6_ID} --network $NET_ID ${fixed_range_v6:+--subnet-range $fixed_range_v6} -f value -c id)
die_if_not_set $LINENO IPV6_SUBNET_ID "Failure creating IPV6_SUBNET_ID for $IPV6_PROVIDER_SUBNET_NAME"
fi
if [[ $Q_AGENT == "openvswitch" ]]; then
sudo ip link set $OVS_PHYSICAL_BRIDGE up
sudo ip link set br-int up
sudo ip link set $PUBLIC_INTERFACE up
fi
else
NET_ID=$(openstack --os-cloud devstack --os-region "$REGION_NAME" network create "$PRIVATE_NETWORK_NAME" -f value -c id)
die_if_not_set $LINENO NET_ID "Failure creating NET_ID for $PRIVATE_NETWORK_NAME"
if [[ "$IP_VERSION" =~ 4.* ]]; then
# Create IPv4 private subnet
SUBNET_ID=$(_neutron_create_private_subnet_v4)
fi
if [[ "$IP_VERSION" =~ .*6 ]]; then
# Create IPv6 private subnet
IPV6_SUBNET_ID=$(_neutron_create_private_subnet_v6)
fi
fi
if is_networking_extension_supported "router" && is_networking_extension_supported "external-net"; then
# Create a router, and add the private subnet as one of its interfaces
if [[ "$Q_L3_ROUTER_PER_TENANT" == "True" ]]; then
# create a tenant-owned router.
ROUTER_ID=$(openstack --os-cloud devstack --os-region "$REGION_NAME" router create $Q_ROUTER_NAME -f value -c id)
die_if_not_set $LINENO ROUTER_ID "Failure creating router $Q_ROUTER_NAME"
else
# Plugin only supports creating a single router, which should be admin owned.
ROUTER_ID=$(openstack --os-cloud devstack-admin --os-region "$REGION_NAME" router create $Q_ROUTER_NAME -f value -c id)
die_if_not_set $LINENO ROUTER_ID "Failure creating router $Q_ROUTER_NAME"
fi
EXTERNAL_NETWORK_FLAGS="--external"
if is_networking_extension_supported "auto-allocated-topology"; then
EXTERNAL_NETWORK_FLAGS="$EXTERNAL_NETWORK_FLAGS --default"
fi
# Create an external network, and a subnet. Configure the external network as router gw
if [ "$Q_USE_PROVIDERNET_FOR_PUBLIC" = "True" ]; then
EXT_NET_ID=$(openstack --os-cloud devstack-admin --os-region "$REGION_NAME" network create "$PUBLIC_NETWORK_NAME" $EXTERNAL_NETWORK_FLAGS --provider-network-type ${PUBLIC_PROVIDERNET_TYPE:-flat} ${PUBLIC_PROVIDERNET_SEGMENTATION_ID:+--provider-segment $PUBLIC_PROVIDERNET_SEGMENTATION_ID} --provider-physical-network ${PUBLIC_PHYSICAL_NETWORK} -f value -c id)
else
EXT_NET_ID=$(openstack --os-cloud devstack-admin --os-region "$REGION_NAME" network create "$PUBLIC_NETWORK_NAME" $EXTERNAL_NETWORK_FLAGS -f value -c id)
fi
die_if_not_set $LINENO EXT_NET_ID "Failure creating EXT_NET_ID for $PUBLIC_NETWORK_NAME"
if [[ "$IP_VERSION" =~ 4.* ]]; then
# Configure router for IPv4 public access
_neutron_configure_router_v4
fi
if [[ "$IP_VERSION" =~ .*6 ]]; then
# Configure router for IPv6 public access
_neutron_configure_router_v6
fi
fi
}
# Create private IPv4 subnet
function _neutron_create_private_subnet_v4 {
if [ -z $SUBNETPOOL_V4_ID ]; then
fixed_range_v4=$FIXED_RANGE
fi
local subnet_params="--ip-version 4 "
if [[ -n "$NETWORK_GATEWAY" ]]; then
subnet_params+="--gateway $NETWORK_GATEWAY "
fi
subnet_params+="${SUBNETPOOL_V4_ID:+--subnet-pool $SUBNETPOOL_V4_ID} "
subnet_params+="${fixed_range_v4:+--subnet-range $fixed_range_v4} "
subnet_params+="--network $NET_ID $PRIVATE_SUBNET_NAME"
local subnet_id
subnet_id=$(openstack --os-cloud devstack-admin-demo --os-region "$REGION_NAME" subnet create $subnet_params -f value -c id)
die_if_not_set $LINENO subnet_id "Failure creating private IPv4 subnet"
echo $subnet_id
}
# Create private IPv6 subnet
function _neutron_create_private_subnet_v6 {
die_if_not_set $LINENO IPV6_RA_MODE "IPV6 RA Mode not set"
die_if_not_set $LINENO IPV6_ADDRESS_MODE "IPV6 Address Mode not set"
local ipv6_modes="--ipv6-ra-mode $IPV6_RA_MODE --ipv6-address-mode $IPV6_ADDRESS_MODE"
if [ -z $SUBNETPOOL_V6_ID ]; then
fixed_range_v6=$FIXED_RANGE_V6
fi
local subnet_params="--ip-version 6 "
if [[ -n "$IPV6_PRIVATE_NETWORK_GATEWAY" ]]; then
subnet_params+="--gateway $IPV6_PRIVATE_NETWORK_GATEWAY "
fi
subnet_params+="${SUBNETPOOL_V6_ID:+--subnet-pool $SUBNETPOOL_V6_ID} "
subnet_params+="${fixed_range_v6:+--subnet-range $fixed_range_v6} "
subnet_params+="$ipv6_modes --network $NET_ID $IPV6_PRIVATE_SUBNET_NAME "
local ipv6_subnet_id
ipv6_subnet_id=$(openstack --os-cloud devstack-admin-demo --os-region "$REGION_NAME" subnet create $subnet_params -f value -c id)
die_if_not_set $LINENO ipv6_subnet_id "Failure creating private IPv6 subnet"
echo $ipv6_subnet_id
}
# Create public IPv4 subnet
function _neutron_create_public_subnet_v4 {
local subnet_params="--ip-version 4 "
subnet_params+="${Q_FLOATING_ALLOCATION_POOL:+--allocation-pool $Q_FLOATING_ALLOCATION_POOL} "
if [[ -n "$PUBLIC_NETWORK_GATEWAY" ]]; then
subnet_params+="--gateway $PUBLIC_NETWORK_GATEWAY "
fi
subnet_params+="--network $EXT_NET_ID --subnet-range $FLOATING_RANGE --no-dhcp "
subnet_params+="$PUBLIC_SUBNET_NAME"
local id_and_ext_gw_ip
id_and_ext_gw_ip=$(openstack --os-cloud devstack-admin --os-region "$REGION_NAME" subnet create $subnet_params | grep -e 'gateway_ip' -e ' id ')
die_if_not_set $LINENO id_and_ext_gw_ip "Failure creating public IPv4 subnet"
echo $id_and_ext_gw_ip
}
# Create public IPv6 subnet
function _neutron_create_public_subnet_v6 {
local subnet_params="--ip-version 6 "
subnet_params+="--gateway $IPV6_PUBLIC_NETWORK_GATEWAY "
subnet_params+="--network $EXT_NET_ID --subnet-range $IPV6_PUBLIC_RANGE --no-dhcp "
subnet_params+="$IPV6_PUBLIC_SUBNET_NAME"
local ipv6_id_and_ext_gw_ip
ipv6_id_and_ext_gw_ip=$(openstack --os-cloud devstack-admin --os-region "$REGION_NAME" subnet create $subnet_params | grep -e 'gateway_ip' -e ' id ')
die_if_not_set $LINENO ipv6_id_and_ext_gw_ip "Failure creating an IPv6 public subnet"
echo $ipv6_id_and_ext_gw_ip
}
# Configure neutron router for IPv4 public access
function _neutron_configure_router_v4 {
openstack --os-cloud devstack-admin-demo --os-region "$REGION_NAME" router add subnet $ROUTER_ID $SUBNET_ID
# Create a public subnet on the external network
local id_and_ext_gw_ip
id_and_ext_gw_ip=$(_neutron_create_public_subnet_v4 $EXT_NET_ID)
local ext_gw_ip
ext_gw_ip=$(echo $id_and_ext_gw_ip | get_field 2)
PUB_SUBNET_ID=$(echo $id_and_ext_gw_ip | get_field 5)
# Configure the external network as the default router gateway
openstack --os-cloud devstack-admin-demo --os-region "$REGION_NAME" router set --external-gateway $EXT_NET_ID $ROUTER_ID
# This logic is specific to using OVN or the l3-agent for layer 3
if ([[ $Q_AGENT == "ovn" ]] && [[ "$OVN_L3_CREATE_PUBLIC_NETWORK" == "True" ]] && is_service_enabled q-svc neutron-api) || is_service_enabled q-l3 neutron-l3; then
# Configure and enable public bridge
local ext_gw_interface="none"
if is_neutron_ovs_base_plugin; then
ext_gw_interface=$(_neutron_get_ext_gw_interface)
elif [[ "$Q_AGENT" = "linuxbridge" ]]; then
# Get the device the neutron router and network for $FIXED_RANGE
# will be using.
if [ "$Q_USE_PROVIDERNET_FOR_PUBLIC" = "True" ]; then
# in provider nets a bridge mapping uses the public bridge directly
ext_gw_interface=$PUBLIC_BRIDGE
else
# e.x. brq3592e767-da for NET_ID 3592e767-da66-4bcb-9bec-cdb03cd96102
ext_gw_interface=brq${EXT_NET_ID:0:11}
fi
fi
if [[ "$ext_gw_interface" != "none" ]]; then
local cidr_len=${FLOATING_RANGE#*/}
local testcmd="ip -o link | grep -q $ext_gw_interface"
test_with_retry "$testcmd" "$ext_gw_interface creation failed"
if [[ $(ip addr show dev $ext_gw_interface | grep -c $ext_gw_ip) == 0 && ( $Q_USE_PROVIDERNET_FOR_PUBLIC == "False" || $Q_USE_PUBLIC_VETH == "True" || $Q_ASSIGN_GATEWAY_TO_PUBLIC_BRIDGE == "True" ) ]]; then
sudo ip addr add $ext_gw_ip/$cidr_len dev $ext_gw_interface
sudo ip link set $ext_gw_interface up
fi
ROUTER_GW_IP=$(openstack --os-cloud devstack-admin --os-region "$REGION_NAME" port list -c 'Fixed IP Addresses' --device-owner network:router_gateway | awk -F'ip_address' '{ print $2 }' | cut -f2 -d\' | tr '\n' ' ')
die_if_not_set $LINENO ROUTER_GW_IP "Failure retrieving ROUTER_GW_IP"
fi
_neutron_set_router_id
fi
}
# Configure neutron router for IPv6 public access
function _neutron_configure_router_v6 {
openstack --os-cloud devstack-admin-demo --os-region "$REGION_NAME" router add subnet $ROUTER_ID $IPV6_SUBNET_ID
# Create a public subnet on the external network
local ipv6_id_and_ext_gw_ip
ipv6_id_and_ext_gw_ip=$(_neutron_create_public_subnet_v6 $EXT_NET_ID)
local ipv6_ext_gw_ip
ipv6_ext_gw_ip=$(echo $ipv6_id_and_ext_gw_ip | get_field 2)
local ipv6_pub_subnet_id
ipv6_pub_subnet_id=$(echo $ipv6_id_and_ext_gw_ip | get_field 5)
# If the external network has not already been set as the default router
# gateway when configuring an IPv4 public subnet, do so now
if [[ "$IP_VERSION" == "6" ]]; then
openstack --os-cloud devstack-admin-demo --os-region "$REGION_NAME" router set --external-gateway $EXT_NET_ID $ROUTER_ID
fi
# This logic is specific to using OVN or the l3-agent for layer 3
if ([[ $Q_AGENT == "ovn" ]] && [[ "$OVN_L3_CREATE_PUBLIC_NETWORK" == "True" ]] && is_service_enabled q-svc neutron-api) || is_service_enabled q-l3 neutron-l3; then
# if the Linux host considers itself to be a router then it will
# ignore all router advertisements
# Ensure IPv6 RAs are accepted on interfaces with a default route.
# This is needed for neutron-based devstack clouds to work in
# IPv6-only clouds in the gate. Please do not remove this without
# talking to folks in Infra.
for d in $default_v6_route_devs; do
# Slashes must be used in this sysctl command because route devices
# can have dots in their names. If dots were used, dots in the
# device name would be reinterpreted as a slash, causing an error.
sudo sysctl -w net/ipv6/conf/$d/accept_ra=2
done
# Ensure IPv6 forwarding is enabled on the host
sudo sysctl -w net.ipv6.conf.all.forwarding=1
# Configure and enable public bridge
# Override global IPV6_ROUTER_GW_IP with the true value from neutron
# NOTE(slaweq): when enforce scopes is enabled in Neutron, router's
# gateway ports aren't visible in API because such ports don't belongs
# to any tenant. Because of that, at least temporary we need to find
# IPv6 address of the router's gateway in a bit different way.
# It can be reverted when bug
# https://bugs.launchpad.net/neutron/+bug/1959332 will be fixed
IPV6_ROUTER_GW_IP=$(openstack --os-cloud devstack-admin-demo --os-region "$REGION_NAME" router show $ROUTER_ID -c external_gateway_info -f json | grep -C 1 $ipv6_pub_subnet_id | grep ip_address | awk '{print $2}' | tr -d '"')
die_if_not_set $LINENO IPV6_ROUTER_GW_IP "Failure retrieving IPV6_ROUTER_GW_IP"
if is_neutron_ovs_base_plugin; then
local ext_gw_interface
ext_gw_interface=$(_neutron_get_ext_gw_interface)
local ipv6_cidr_len=${IPV6_PUBLIC_RANGE#*/}
# Configure interface for public bridge by setting the interface
# to "up" in case the job is running entirely private network based
# testing.
sudo ip link set $ext_gw_interface up
sudo ip -6 addr replace $ipv6_ext_gw_ip/$ipv6_cidr_len dev $ext_gw_interface
# Any IPv6 private subnet that uses the default IPV6 subnet pool
# and that is plugged into the default router (Q_ROUTER_NAME) will
# be reachable from the devstack node (ex: ipv6-private-subnet).
# Some scenario tests (such as octavia-tempest-plugin) rely heavily
# on this feature.
local replace_range=${SUBNETPOOL_PREFIX_V6}
if [[ -z "${SUBNETPOOL_V6_ID}" ]]; then
replace_range=${FIXED_RANGE_V6}
fi
sudo ip -6 route replace $replace_range via $IPV6_ROUTER_GW_IP dev $ext_gw_interface
fi
_neutron_set_router_id
fi
}
function is_networking_extension_supported {
local extension=$1
# TODO(sc68cal) cache this instead of calling every time
EXT_LIST=$(openstack --os-cloud devstack-admin --os-region "$REGION_NAME" extension list --network -c Alias -f value)
[[ $EXT_LIST =~ $extension ]] && return 0
}
function plugin_agent_add_l3_agent_extension {
local l3_agent_extension=$1
if [[ -z "$L3_AGENT_EXTENSIONS" ]]; then
L3_AGENT_EXTENSIONS=$l3_agent_extension
elif [[ ! ,${L3_AGENT_EXTENSIONS}, =~ ,${l3_agent_extension}, ]]; then
L3_AGENT_EXTENSIONS+=",$l3_agent_extension"
fi
}