Drop lib/neutron module

Module lib/neutron was introduced long time ago as new module to deploy
neutron. It was intended to replace old lib/neutron-legacy module. But
since very long time it wasn't really finished and used by anyone and
lib/neutron-legacy is defacto standard module used by everyone to deploy
neutron with devstack.
In [1] unfinished lib/neutron was deprecated and now it's time to remove
it from the devstack code.

This patch also renames old "lib/neutron-legacy" module to be
"lib/neutron" now.

Previously "old" lib/neutron-legacy module was accepting neutron
services names wit "q-" prefix and "new" lib/neutron module was accepting
services with "neutron-" prefix. Now, as there is only one module it
accepts both prefixes.
For historical reasons and to be consistent with old lib/neutron-legacy
which was widely used everywhere, services will be named with "q-"
prefix but both prefixes will be accepted to enable or disable services.

This patch also moves _configure_neutron_service function to be called
at the end of the "configure_neutron" after all agents and service
plugins are already configured.

[1] https://review.opendev.org/c/openstack/devstack/+/823653

Related-bug: #1996748

Change-Id: Ibf1c8b2ee6b6618f77cd8486e9c687993d7cb4a0
diff --git a/lib/neutron-legacy b/lib/neutron-legacy
index baf67f2..e90400f 100644
--- a/lib/neutron-legacy
+++ b/lib/neutron-legacy
@@ -1,1097 +1,6 @@
 #!/bin/bash
-#
-# lib/neutron
-# functions - functions specific to neutron
 
-# Dependencies:
-# ``functions`` file
-# ``DEST`` must be defined
-# ``STACK_USER`` must be defined
+# TODO(slaweq): remove that file when other projects, like e.g. Grenade will
+# be using lib/neutron
 
-# ``stack.sh`` calls the entry points in this order:
-#
-# - install_neutron_agent_packages
-# - install_neutronclient
-# - install_neutron
-# - install_neutron_third_party
-# - configure_neutron
-# - init_neutron
-# - configure_neutron_third_party
-# - init_neutron_third_party
-# - start_neutron_third_party
-# - create_nova_conf_neutron
-# - configure_neutron_after_post_config
-# - start_neutron_service_and_check
-# - check_neutron_third_party_integration
-# - start_neutron_agents
-# - create_neutron_initial_network
-#
-# ``unstack.sh`` calls the entry points in this order:
-#
-# - stop_neutron
-# - stop_neutron_third_party
-# - cleanup_neutron
-
-# Functions in lib/neutron are classified into the following categories:
-#
-# - entry points (called from stack.sh or unstack.sh)
-# - internal functions
-# - neutron exercises
-# - 3rd party programs
-
-
-# Neutron Networking
-# ------------------
-
-# Make sure that neutron is enabled in ``ENABLED_SERVICES``.  If you want
-# to run Neutron on this host, make sure that q-svc is also in
-# ``ENABLED_SERVICES``.
-#
-# See "Neutron Network Configuration" below for additional variables
-# that must be set in localrc for connectivity across hosts with
-# Neutron.
-
-# Settings
-# --------
-
-
-# Neutron Network Configuration
-# -----------------------------
-
-if is_service_enabled tls-proxy; then
-    Q_PROTOCOL="https"
-fi
-
-
-# Set up default directories
-GITDIR["python-neutronclient"]=$DEST/python-neutronclient
-
-
-NEUTRON_DIR=$DEST/neutron
-NEUTRON_FWAAS_DIR=$DEST/neutron-fwaas
-
-# Support entry points installation of console scripts
-if [[ -d $NEUTRON_DIR/bin/neutron-server ]]; then
-    NEUTRON_BIN_DIR=$NEUTRON_DIR/bin
-else
-    NEUTRON_BIN_DIR=$(get_python_exec_prefix)
-fi
-
-NEUTRON_CONF_DIR=/etc/neutron
-NEUTRON_CONF=$NEUTRON_CONF_DIR/neutron.conf
-export NEUTRON_TEST_CONFIG_FILE=${NEUTRON_TEST_CONFIG_FILE:-"$NEUTRON_CONF_DIR/debug.ini"}
-
-# NEUTRON_DEPLOY_MOD_WSGI defines how neutron is deployed, allowed values:
-# - False (default) : Run neutron under Eventlet
-# - True : Run neutron under uwsgi
-# TODO(annp): Switching to uwsgi in next cycle if things turn out to be stable
-# enough
-NEUTRON_DEPLOY_MOD_WSGI=$(trueorfalse False NEUTRON_DEPLOY_MOD_WSGI)
-
-NEUTRON_UWSGI_CONF=$NEUTRON_CONF_DIR/neutron-api-uwsgi.ini
-
-# If NEUTRON_ENFORCE_SCOPE == True, it will set "enforce_scope"
-# and "enforce_new_defaults" to True in the Neutron's config to enforce usage
-# of the new RBAC policies and scopes.
-NEUTRON_ENFORCE_SCOPE=$(trueorfalse False NEUTRON_ENFORCE_SCOPE)
-
-# Agent binaries.  Note, binary paths for other agents are set in per-service
-# scripts in lib/neutron_plugins/services/
-AGENT_DHCP_BINARY="$NEUTRON_BIN_DIR/neutron-dhcp-agent"
-AGENT_L3_BINARY=${AGENT_L3_BINARY:-"$NEUTRON_BIN_DIR/neutron-l3-agent"}
-AGENT_META_BINARY="$NEUTRON_BIN_DIR/neutron-metadata-agent"
-
-# Agent config files. Note, plugin-specific Q_PLUGIN_CONF_FILE is set and
-# loaded from per-plugin  scripts in lib/neutron_plugins/
-Q_DHCP_CONF_FILE=$NEUTRON_CONF_DIR/dhcp_agent.ini
-Q_L3_CONF_FILE=$NEUTRON_CONF_DIR/l3_agent.ini
-Q_META_CONF_FILE=$NEUTRON_CONF_DIR/metadata_agent.ini
-
-# Default name for Neutron database
-Q_DB_NAME=${Q_DB_NAME:-neutron}
-# Default Neutron Plugin
-Q_PLUGIN=${Q_PLUGIN:-ml2}
-# Default Neutron Port
-Q_PORT=${Q_PORT:-9696}
-# Default Neutron Internal Port when using TLS proxy
-Q_PORT_INT=${Q_PORT_INT:-19696}
-# Default Neutron Host
-Q_HOST=${Q_HOST:-$SERVICE_HOST}
-# Default protocol
-Q_PROTOCOL=${Q_PROTOCOL:-$SERVICE_PROTOCOL}
-# Default listen address
-Q_LISTEN_ADDRESS=${Q_LISTEN_ADDRESS:-$(ipv6_unquote $SERVICE_LISTEN_ADDRESS)}
-# Default admin username
-Q_ADMIN_USERNAME=${Q_ADMIN_USERNAME:-neutron}
-# Default auth strategy
-Q_AUTH_STRATEGY=${Q_AUTH_STRATEGY:-keystone}
-# RHEL's support for namespaces requires using veths with ovs
-Q_OVS_USE_VETH=${Q_OVS_USE_VETH:-False}
-Q_USE_ROOTWRAP=${Q_USE_ROOTWRAP:-True}
-Q_USE_ROOTWRAP_DAEMON=$(trueorfalse True Q_USE_ROOTWRAP_DAEMON)
-# Meta data IP
-Q_META_DATA_IP=${Q_META_DATA_IP:-$(ipv6_unquote $SERVICE_HOST)}
-# Allow Overlapping IP among subnets
-Q_ALLOW_OVERLAPPING_IP=${Q_ALLOW_OVERLAPPING_IP:-True}
-Q_NOTIFY_NOVA_PORT_STATUS_CHANGES=${Q_NOTIFY_NOVA_PORT_STATUS_CHANGES:-True}
-Q_NOTIFY_NOVA_PORT_DATA_CHANGES=${Q_NOTIFY_NOVA_PORT_DATA_CHANGES:-True}
-VIF_PLUGGING_IS_FATAL=${VIF_PLUGGING_IS_FATAL:-True}
-VIF_PLUGGING_TIMEOUT=${VIF_PLUGGING_TIMEOUT:-300}
-
-# Allow to skip stopping of OVN services
-SKIP_STOP_OVN=${SKIP_STOP_OVN:-False}
-
-# The directory which contains files for Q_PLUGIN_EXTRA_CONF_FILES.
-# /etc/neutron is assumed by many of devstack plugins.  Do not change.
-_Q_PLUGIN_EXTRA_CONF_PATH=/etc/neutron
-
-# The name of the service in the endpoint URL
-NEUTRON_ENDPOINT_SERVICE_NAME=${NEUTRON_ENDPOINT_SERVICE_NAME-"networking"}
-if [[ "$NEUTRON_DEPLOY_MOD_WSGI" == "True" && -z "$NEUTRON_ENDPOINT_SERVICE_NAME" ]]; then
-    NEUTRON_ENDPOINT_SERVICE_NAME="networking"
-fi
-
-# List of config file names in addition to the main plugin config file
-# To add additional plugin config files, use ``neutron_server_config_add``
-# utility function.  For example:
-#
-#    ``neutron_server_config_add file1``
-#
-# These config files are relative to ``/etc/neutron``.  The above
-# example would specify ``--config-file /etc/neutron/file1`` for
-# neutron server.
-declare -a -g Q_PLUGIN_EXTRA_CONF_FILES
-
-# same as Q_PLUGIN_EXTRA_CONF_FILES, but with absolute path.
-declare -a -g _Q_PLUGIN_EXTRA_CONF_FILES_ABS
-
-
-Q_RR_CONF_FILE=$NEUTRON_CONF_DIR/rootwrap.conf
-if [[ "$Q_USE_ROOTWRAP" == "False" ]]; then
-    Q_RR_COMMAND="sudo"
-else
-    NEUTRON_ROOTWRAP=$(get_rootwrap_location neutron)
-    Q_RR_COMMAND="sudo $NEUTRON_ROOTWRAP $Q_RR_CONF_FILE"
-    if [[ "$Q_USE_ROOTWRAP_DAEMON" == "True" ]]; then
-        Q_RR_DAEMON_COMMAND="sudo $NEUTRON_ROOTWRAP-daemon $Q_RR_CONF_FILE"
-    fi
-fi
-
-
-# Distributed Virtual Router (DVR) configuration
-# Can be:
-# - ``legacy``   - No DVR functionality
-# - ``dvr_snat`` - Controller or single node DVR
-# - ``dvr``      - Compute node in multi-node DVR
-#
-Q_DVR_MODE=${Q_DVR_MODE:-legacy}
-if [[ "$Q_DVR_MODE" != "legacy" ]]; then
-    Q_ML2_PLUGIN_MECHANISM_DRIVERS=openvswitch,l2population
-fi
-
-# Provider Network Configurations
-# --------------------------------
-
-# The following variables control the Neutron ML2 plugins' allocation
-# of tenant networks and availability of provider networks. If these
-# are not configured in ``localrc``, tenant networks will be local to
-# the host (with no remote connectivity), and no physical resources
-# will be available for the allocation of provider networks.
-
-# To disable tunnels (GRE or VXLAN) for tenant networks,
-# set to False in ``local.conf``.
-# GRE tunnels are only supported by the openvswitch.
-ENABLE_TENANT_TUNNELS=${ENABLE_TENANT_TUNNELS:-True}
-
-# If using GRE, VXLAN or GENEVE tunnels for tenant networks,
-# specify the range of IDs from which tenant networks are
-# allocated. Can be overridden in ``localrc`` if necessary.
-TENANT_TUNNEL_RANGES=${TENANT_TUNNEL_RANGES:-1:1000}
-
-# To use VLANs for tenant networks, set to True in localrc. VLANs
-# are supported by the ML2 plugins, requiring additional configuration
-# described below.
-ENABLE_TENANT_VLANS=${ENABLE_TENANT_VLANS:-False}
-
-# If using VLANs for tenant networks, set in ``localrc`` to specify
-# the range of VLAN VIDs from which tenant networks are
-# allocated. An external network switch must be configured to
-# trunk these VLANs between hosts for multi-host connectivity.
-#
-# Example: ``TENANT_VLAN_RANGE=1000:1999``
-TENANT_VLAN_RANGE=${TENANT_VLAN_RANGE:-}
-
-# If using VLANs for tenant networks, or if using flat or VLAN
-# provider networks, set in ``localrc`` to the name of the physical
-# network, and also configure ``OVS_PHYSICAL_BRIDGE`` for the
-# openvswitch agent or ``LB_PHYSICAL_INTERFACE`` for the linuxbridge
-# agent, as described below.
-#
-# Example: ``PHYSICAL_NETWORK=default``
-PHYSICAL_NETWORK=${PHYSICAL_NETWORK:-public}
-
-# With the openvswitch agent, if using VLANs for tenant networks,
-# or if using flat or VLAN provider networks, set in ``localrc`` to
-# the name of the OVS bridge to use for the physical network. The
-# bridge will be created if it does not already exist, but a
-# physical interface must be manually added to the bridge as a
-# port for external connectivity.
-#
-# Example: ``OVS_PHYSICAL_BRIDGE=br-eth1``
-OVS_PHYSICAL_BRIDGE=${OVS_PHYSICAL_BRIDGE:-br-ex}
-
-# With the linuxbridge agent, if using VLANs for tenant networks,
-# or if using flat or VLAN provider networks, set in ``localrc`` to
-# the name of the network interface to use for the physical
-# network.
-#
-# Example: ``LB_PHYSICAL_INTERFACE=eth1``
-if [[ $Q_AGENT == "linuxbridge" && -z ${LB_PHYSICAL_INTERFACE} ]]; then
-    default_route_dev=$( (ip route; ip -6 route) | grep ^default | head -n 1 | awk '{print $5}')
-    die_if_not_set $LINENO default_route_dev "Failure retrieving default route device"
-    LB_PHYSICAL_INTERFACE=$default_route_dev
-fi
-
-# With the openvswitch plugin, set to True in ``localrc`` to enable
-# provider GRE tunnels when ``ENABLE_TENANT_TUNNELS`` is False.
-#
-# Example: ``OVS_ENABLE_TUNNELING=True``
-OVS_ENABLE_TUNNELING=${OVS_ENABLE_TUNNELING:-$ENABLE_TENANT_TUNNELS}
-
-# Use DHCP agent for providing metadata service in the case of
-# without L3 agent (No Route Agent), set to True in localrc.
-ENABLE_ISOLATED_METADATA=${ENABLE_ISOLATED_METADATA:-False}
-
-# Add a static route as dhcp option, so the request to 169.254.169.254
-# will be able to reach through a route(DHCP agent)
-# This option require ENABLE_ISOLATED_METADATA = True
-ENABLE_METADATA_NETWORK=${ENABLE_METADATA_NETWORK:-False}
-# Neutron plugin specific functions
-# ---------------------------------
-
-# Please refer to ``lib/neutron_plugins/README.md`` for details.
-if [ -f $TOP_DIR/lib/neutron_plugins/$Q_PLUGIN ]; then
-    source $TOP_DIR/lib/neutron_plugins/$Q_PLUGIN
-fi
-
-# Agent metering service plugin functions
-# -------------------------------------------
-
-# Hardcoding for 1 service plugin for now
-source $TOP_DIR/lib/neutron_plugins/services/metering
-
-# L3 Service functions
-source $TOP_DIR/lib/neutron_plugins/services/l3
-
-# Additional Neutron service plugins
-source $TOP_DIR/lib/neutron_plugins/services/placement
-source $TOP_DIR/lib/neutron_plugins/services/trunk
-source $TOP_DIR/lib/neutron_plugins/services/qos
-
-# Use security group or not
-if has_neutron_plugin_security_group; then
-    Q_USE_SECGROUP=${Q_USE_SECGROUP:-True}
-else
-    Q_USE_SECGROUP=False
-fi
-
-# Save trace setting
-_XTRACE_NEUTRON=$(set +o | grep xtrace)
-set +o xtrace
-
-
-# Functions
-# ---------
-
-function _determine_config_server {
-    if [[ "$Q_PLUGIN_EXTRA_CONF_PATH" != '' ]]; then
-        if [[ "$Q_PLUGIN_EXTRA_CONF_PATH" = "$_Q_PLUGIN_EXTRA_CONF_PATH" ]]; then
-            deprecated "Q_PLUGIN_EXTRA_CONF_PATH is deprecated"
-        else
-            die $LINENO "Q_PLUGIN_EXTRA_CONF_PATH is deprecated"
-        fi
-    fi
-    if [[ ${#Q_PLUGIN_EXTRA_CONF_FILES[@]} > 0 ]]; then
-        deprecated "Q_PLUGIN_EXTRA_CONF_FILES is deprecated.  Use neutron_server_config_add instead."
-    fi
-    for cfg_file in ${Q_PLUGIN_EXTRA_CONF_FILES[@]}; do
-        _Q_PLUGIN_EXTRA_CONF_FILES_ABS+=($_Q_PLUGIN_EXTRA_CONF_PATH/$cfg_file)
-    done
-
-    local cfg_file
-    local opts="--config-file $NEUTRON_CONF --config-file /$Q_PLUGIN_CONF_FILE"
-    for cfg_file in ${_Q_PLUGIN_EXTRA_CONF_FILES_ABS[@]}; do
-        opts+=" --config-file $cfg_file"
-    done
-    echo "$opts"
-}
-
-function _determine_config_l3 {
-    local opts="--config-file $NEUTRON_CONF --config-file $Q_L3_CONF_FILE"
-    echo "$opts"
-}
-
-# For services and agents that require it, dynamically construct a list of
-# --config-file arguments that are passed to the binary.
-function determine_config_files {
-    local opts=""
-    case "$1" in
-        "neutron-server") opts="$(_determine_config_server)" ;;
-        "neutron-l3-agent") opts="$(_determine_config_l3)" ;;
-    esac
-    if [ -z "$opts" ] ; then
-        die $LINENO "Could not determine config files for $1."
-    fi
-    echo "$opts"
-}
-
-# configure_mutnauq()
-# Set common config for all neutron server and agents.
-function configure_mutnauq {
-    _configure_neutron_common
-    iniset_rpc_backend neutron $NEUTRON_CONF
-
-    if is_service_enabled q-metering; then
-        _configure_neutron_metering
-    fi
-    if is_service_enabled q-agt q-svc; then
-        _configure_neutron_service
-    fi
-    if is_service_enabled q-agt; then
-        _configure_neutron_plugin_agent
-    fi
-    if is_service_enabled q-dhcp; then
-        _configure_neutron_dhcp_agent
-    fi
-    if is_service_enabled q-l3; then
-        _configure_neutron_l3_agent
-    fi
-    if is_service_enabled q-meta; then
-        _configure_neutron_metadata_agent
-    fi
-
-    if [[ "$Q_DVR_MODE" != "legacy" ]]; then
-        _configure_dvr
-    fi
-    if is_service_enabled ceilometer; then
-        _configure_neutron_ceilometer_notifications
-    fi
-
-    if [[ $Q_AGENT == "ovn" ]]; then
-        configure_ovn
-        configure_ovn_plugin
-    fi
-
-    # Configure Neutron's advanced services
-    if is_service_enabled q-placement neutron-placement; then
-        configure_placement_extension
-    fi
-    if is_service_enabled q-trunk neutron-trunk; then
-        configure_trunk_extension
-    fi
-    if is_service_enabled q-qos neutron-qos; then
-        configure_qos
-        if is_service_enabled q-l3 neutron-l3; then
-            configure_l3_agent_extension_fip_qos
-            configure_l3_agent_extension_gateway_ip_qos
-        fi
-    fi
-
-    iniset $NEUTRON_CONF DEFAULT api_workers "$API_WORKERS"
-    # devstack is not a tool for running uber scale OpenStack
-    # clouds, therefore running without a dedicated RPC worker
-    # for state reports is more than adequate.
-    iniset $NEUTRON_CONF DEFAULT rpc_state_report_workers 0
-}
-
-function create_nova_conf_neutron {
-    local conf=${1:-$NOVA_CONF}
-    iniset $conf neutron auth_type "password"
-    iniset $conf neutron auth_url "$KEYSTONE_SERVICE_URI"
-    iniset $conf neutron username "$Q_ADMIN_USERNAME"
-    iniset $conf neutron password "$SERVICE_PASSWORD"
-    iniset $conf neutron user_domain_name "$SERVICE_DOMAIN_NAME"
-    iniset $conf neutron project_name "$SERVICE_PROJECT_NAME"
-    iniset $conf neutron project_domain_name "$SERVICE_DOMAIN_NAME"
-    iniset $conf neutron auth_strategy "$Q_AUTH_STRATEGY"
-    iniset $conf neutron region_name "$REGION_NAME"
-
-    # optionally set options in nova_conf
-    neutron_plugin_create_nova_conf $conf
-
-    if is_service_enabled q-meta; then
-        iniset $conf neutron service_metadata_proxy "True"
-    fi
-
-    iniset $conf DEFAULT vif_plugging_is_fatal "$VIF_PLUGGING_IS_FATAL"
-    iniset $conf DEFAULT vif_plugging_timeout "$VIF_PLUGGING_TIMEOUT"
-}
-
-# create_mutnauq_accounts() - Set up common required neutron accounts
-
-# Tenant               User       Roles
-# ------------------------------------------------------------------
-# service              neutron    admin        # if enabled
-
-# Migrated from keystone_data.sh
-function create_mutnauq_accounts {
-    local neutron_url
-    if [ "$NEUTRON_DEPLOY_MOD_WSGI" == "True" ]; then
-        neutron_url=$Q_PROTOCOL://$SERVICE_HOST/
-    else
-        neutron_url=$Q_PROTOCOL://$SERVICE_HOST:$Q_PORT/
-    fi
-    if [ ! -z "$NEUTRON_ENDPOINT_SERVICE_NAME" ]; then
-        neutron_url=$neutron_url$NEUTRON_ENDPOINT_SERVICE_NAME
-    fi
-
-    if [[ "$ENABLED_SERVICES" =~ "q-svc" ]]; then
-
-        create_service_user "neutron"
-
-        get_or_create_service "neutron" "network" "Neutron Service"
-        get_or_create_endpoint \
-            "network" \
-            "$REGION_NAME" "$neutron_url"
-    fi
-}
-
-# init_mutnauq() - Initialize databases, etc.
-function init_mutnauq {
-    recreate_database $Q_DB_NAME
-    time_start "dbsync"
-    # Run Neutron db migrations
-    $NEUTRON_BIN_DIR/neutron-db-manage --config-file $NEUTRON_CONF --config-file /$Q_PLUGIN_CONF_FILE upgrade head
-    time_stop "dbsync"
-}
-
-# install_mutnauq() - Collect source and prepare
-function install_mutnauq {
-    # Install neutron-lib from git so we make sure we're testing
-    # the latest code.
-    if use_library_from_git "neutron-lib"; then
-        git_clone_by_name "neutron-lib"
-        setup_dev_lib "neutron-lib"
-    fi
-
-    git_clone $NEUTRON_REPO $NEUTRON_DIR $NEUTRON_BRANCH
-    setup_develop $NEUTRON_DIR
-
-    if [[ $Q_AGENT == "ovn" ]]; then
-        install_ovn
-    fi
-}
-
-# install_neutron_agent_packages() - Collect source and prepare
-function install_neutron_agent_packages_mutnauq {
-    # radvd doesn't come with the OS. Install it if the l3 service is enabled.
-    if is_service_enabled q-l3; then
-        install_package radvd
-    fi
-    # install packages that are specific to plugin agent(s)
-    if is_service_enabled q-agt q-dhcp q-l3; then
-        neutron_plugin_install_agent_packages
-    fi
-}
-
-# Finish neutron configuration
-function configure_neutron_after_post_config {
-    if [[ $Q_SERVICE_PLUGIN_CLASSES != '' ]]; then
-        iniset $NEUTRON_CONF DEFAULT service_plugins $Q_SERVICE_PLUGIN_CLASSES
-    fi
-    configure_rbac_policies
-}
-
-# configure_rbac_policies() - Configure Neutron to enforce new RBAC
-# policies and scopes if NEUTRON_ENFORCE_SCOPE == True
-function configure_rbac_policies {
-    if [[ "$NEUTRON_ENFORCE_SCOPE" == "True" || "$ENFORCE_SCOPE" == True ]]; then
-        iniset $NEUTRON_CONF oslo_policy enforce_new_defaults True
-        iniset $NEUTRON_CONF oslo_policy enforce_scope True
-    else
-        iniset $NEUTRON_CONF oslo_policy enforce_new_defaults False
-        iniset $NEUTRON_CONF oslo_policy enforce_scope False
-    fi
-}
-
-# Start running OVN processes
-function start_ovn_services {
-    if [[ $Q_AGENT == "ovn" ]]; then
-        init_ovn
-        start_ovn
-        if [[ "$OVN_L3_CREATE_PUBLIC_NETWORK" == "True" ]]; then
-            if [[ "$NEUTRON_CREATE_INITIAL_NETWORKS" != "True" ]]; then
-                echo "OVN_L3_CREATE_PUBLIC_NETWORK=True is being ignored "
-                echo "because NEUTRON_CREATE_INITIAL_NETWORKS is set to False"
-            else
-                create_public_bridge
-            fi
-        fi
-    fi
-}
-
-# Start running processes
-function start_neutron_service_and_check {
-    local service_port=$Q_PORT
-    local service_protocol=$Q_PROTOCOL
-    local cfg_file_options
-    local neutron_url
-
-    cfg_file_options="$(determine_config_files neutron-server)"
-
-    if is_service_enabled tls-proxy; then
-        service_port=$Q_PORT_INT
-        service_protocol="http"
-    fi
-    # Start the Neutron service
-    if [ "$NEUTRON_DEPLOY_MOD_WSGI" == "True" ]; then
-        enable_service neutron-api
-        run_process neutron-api "$(which uwsgi) --procname-prefix neutron-api --ini $NEUTRON_UWSGI_CONF"
-        neutron_url=$Q_PROTOCOL://$Q_HOST/
-        enable_service neutron-rpc-server
-        run_process neutron-rpc-server "$NEUTRON_BIN_DIR/neutron-rpc-server $cfg_file_options"
-    else
-        run_process q-svc "$NEUTRON_BIN_DIR/neutron-server $cfg_file_options"
-        neutron_url=$service_protocol://$Q_HOST:$service_port/
-        # Start proxy if enabled
-        if is_service_enabled tls-proxy; then
-            start_tls_proxy neutron '*' $Q_PORT $Q_HOST $Q_PORT_INT
-        fi
-    fi
-    if [ ! -z "$NEUTRON_ENDPOINT_SERVICE_NAME" ]; then
-        neutron_url=$neutron_url$NEUTRON_ENDPOINT_SERVICE_NAME
-    fi
-    echo "Waiting for Neutron to start..."
-
-    local testcmd="wget ${ssl_ca} --no-proxy -q -O- $neutron_url"
-    test_with_retry "$testcmd" "Neutron did not start" $SERVICE_TIMEOUT
-}
-
-# Control of the l2 agent is separated out to make it easier to test partial
-# upgrades (everything upgraded except the L2 agent)
-function start_mutnauq_l2_agent {
-    run_process q-agt "$AGENT_BINARY --config-file $NEUTRON_CONF --config-file /$Q_PLUGIN_CONF_FILE"
-
-    if is_provider_network && [[ $Q_AGENT == "openvswitch" ]]; then
-        sudo ovs-vsctl --no-wait -- --may-exist add-port $OVS_PHYSICAL_BRIDGE $PUBLIC_INTERFACE
-        sudo ip link set $OVS_PHYSICAL_BRIDGE up
-        sudo ip link set br-int up
-        sudo ip link set $PUBLIC_INTERFACE up
-        if is_ironic_hardware; then
-            for IP in $(ip addr show dev $PUBLIC_INTERFACE | grep ' inet ' | awk '{print $2}'); do
-                sudo ip addr del $IP dev $PUBLIC_INTERFACE
-                sudo ip addr add $IP dev $OVS_PHYSICAL_BRIDGE
-            done
-            sudo ip route replace $FIXED_RANGE via $NETWORK_GATEWAY dev $OVS_PHYSICAL_BRIDGE
-        fi
-    fi
-}
-
-function start_mutnauq_other_agents {
-    run_process q-dhcp "$AGENT_DHCP_BINARY --config-file $NEUTRON_CONF --config-file $Q_DHCP_CONF_FILE"
-
-    run_process q-l3 "$AGENT_L3_BINARY $(determine_config_files neutron-l3-agent)"
-
-    run_process q-meta "$AGENT_META_BINARY --config-file $NEUTRON_CONF --config-file $Q_META_CONF_FILE"
-    run_process q-metering "$AGENT_METERING_BINARY --config-file $NEUTRON_CONF --config-file $METERING_AGENT_CONF_FILENAME"
-}
-
-# Start running processes, including screen
-function start_neutron_agents {
-    # Start up the neutron agents if enabled
-    start_mutnauq_l2_agent
-    start_mutnauq_other_agents
-}
-
-function stop_mutnauq_l2_agent {
-    stop_process q-agt
-}
-
-# stop_mutnauq_other() - Stop running processes
-function stop_mutnauq_other {
-    if is_service_enabled q-dhcp; then
-        stop_process q-dhcp
-        pid=$(ps aux | awk '/[d]nsmasq.+interface=(tap|ns-)/ { print $2 }')
-        [ ! -z "$pid" ] && sudo kill -9 $pid
-    fi
-
-    if [ "$NEUTRON_DEPLOY_MOD_WSGI" == "True" ]; then
-        stop_process neutron-rpc-server
-        stop_process neutron-api
-    else
-        stop_process q-svc
-    fi
-
-    if is_service_enabled q-l3; then
-        sudo pkill -f "radvd -C $DATA_DIR/neutron/ra"
-        stop_process q-l3
-    fi
-
-    if is_service_enabled q-meta; then
-        stop_process q-meta
-    fi
-
-    if is_service_enabled q-metering; then
-        neutron_metering_stop
-    fi
-
-    if [[ "$Q_USE_ROOTWRAP_DAEMON" == "True" ]]; then
-        sudo pkill -9 -f $NEUTRON_ROOTWRAP-daemon || :
-    fi
-}
-
-# stop_neutron() - Stop running processes (non-screen)
-function stop_mutnauq {
-    stop_mutnauq_other
-    stop_mutnauq_l2_agent
-
-    if [[ $Q_AGENT == "ovn" && $SKIP_STOP_OVN != "True" ]]; then
-        stop_ovn
-    fi
-}
-
-# _move_neutron_addresses_route() - Move the primary IP to the OVS bridge
-# on startup, or back to the public interface on cleanup. If no IP is
-# configured on the interface, just add it as a port to the OVS bridge.
-function _move_neutron_addresses_route {
-    local from_intf=$1
-    local to_intf=$2
-    local add_ovs_port=$3
-    local del_ovs_port=$4
-    local af=$5
-
-    if [[ -n "$from_intf" && -n "$to_intf" ]]; then
-        # Remove the primary IP address from $from_intf and add it to $to_intf,
-        # along with the default route, if it exists.  Also, when called
-        # on configure we will also add $from_intf as a port on $to_intf,
-        # assuming it is an OVS bridge.
-
-        local IP_REPLACE=""
-        local IP_DEL=""
-        local IP_UP=""
-        local DEFAULT_ROUTE_GW
-        DEFAULT_ROUTE_GW=$(ip -f $af r | awk "/default.+$from_intf\s/ { print \$3; exit }")
-        local ADD_OVS_PORT=""
-        local DEL_OVS_PORT=""
-        local ARP_CMD=""
-
-        IP_BRD=$(ip -f $af a s dev $from_intf scope global primary | grep inet | awk '{ print $2, $3, $4; exit }')
-
-        if [ "$DEFAULT_ROUTE_GW" != "" ]; then
-            ADD_DEFAULT_ROUTE="sudo ip -f $af r replace default via $DEFAULT_ROUTE_GW dev $to_intf"
-        fi
-
-        if [[ "$add_ovs_port" == "True" ]]; then
-            ADD_OVS_PORT="sudo ovs-vsctl --may-exist add-port $to_intf $from_intf"
-        fi
-
-        if [[ "$del_ovs_port" == "True" ]]; then
-            DEL_OVS_PORT="sudo ovs-vsctl --if-exists del-port $from_intf $to_intf"
-        fi
-
-        if [[ "$IP_BRD" != "" ]]; then
-            IP_DEL="sudo ip addr del $IP_BRD dev $from_intf"
-            IP_REPLACE="sudo ip addr replace $IP_BRD dev $to_intf"
-            IP_UP="sudo ip link set $to_intf up"
-            if [[ "$af" == "inet" ]]; then
-                IP=$(echo $IP_BRD | awk '{ print $1; exit }' | grep -o -E '(.*)/' | cut -d "/" -f1)
-                ARP_CMD="sudo arping -A -c 3 -w 5 -I $to_intf $IP "
-            fi
-        fi
-
-        # The add/del OVS port calls have to happen either before or
-        # after the address is moved in order to not leave it orphaned.
-        $DEL_OVS_PORT; $IP_DEL; $IP_REPLACE; $IP_UP; $ADD_OVS_PORT; $ADD_DEFAULT_ROUTE; $ARP_CMD
-    fi
-}
-
-# _configure_public_network_connectivity() - Configures connectivity to the
-# external network using $PUBLIC_INTERFACE or NAT on the single interface
-# machines
-function _configure_public_network_connectivity {
-    # If we've given a PUBLIC_INTERFACE to take over, then we assume
-    # that we can own the whole thing, and privot it into the OVS
-    # bridge. If we are not, we're probably on a single interface
-    # machine, and we just setup NAT so that fixed guests can get out.
-    if [[ -n "$PUBLIC_INTERFACE" ]]; then
-        _move_neutron_addresses_route "$PUBLIC_INTERFACE" "$OVS_PHYSICAL_BRIDGE" True False "inet"
-
-        if [[ $(ip -f inet6 a s dev "$PUBLIC_INTERFACE" | grep -c 'global') != 0 ]]; then
-            _move_neutron_addresses_route "$PUBLIC_INTERFACE" "$OVS_PHYSICAL_BRIDGE" False False "inet6"
-        fi
-    else
-        for d in $default_v4_route_devs; do
-            sudo iptables -t nat -A POSTROUTING -o $d -s $FLOATING_RANGE -j MASQUERADE
-        done
-    fi
-}
-
-# cleanup_mutnauq() - Remove residual data files, anything left over from previous
-# runs that a clean run would need to clean up
-function cleanup_mutnauq {
-
-    if [[ -n "$OVS_PHYSICAL_BRIDGE" ]]; then
-        _move_neutron_addresses_route "$OVS_PHYSICAL_BRIDGE" "$PUBLIC_INTERFACE" False True "inet"
-
-        if [[ $(ip -f inet6 a s dev "$OVS_PHYSICAL_BRIDGE" | grep -c 'global') != 0 ]]; then
-            # ip(8) wants the prefix length when deleting
-            local v6_gateway
-            v6_gateway=$(ip -6 a s dev $OVS_PHYSICAL_BRIDGE | grep $IPV6_PUBLIC_NETWORK_GATEWAY | awk '{ print $2 }')
-            sudo ip -6 addr del $v6_gateway dev $OVS_PHYSICAL_BRIDGE
-            _move_neutron_addresses_route "$OVS_PHYSICAL_BRIDGE" "$PUBLIC_INTERFACE" False False "inet6"
-        fi
-
-        if is_provider_network && is_ironic_hardware; then
-            for IP in $(ip addr show dev $OVS_PHYSICAL_BRIDGE | grep ' inet ' | awk '{print $2}'); do
-                sudo ip addr del $IP dev $OVS_PHYSICAL_BRIDGE
-                sudo ip addr add $IP dev $PUBLIC_INTERFACE
-            done
-            sudo route del -net $FIXED_RANGE gw $NETWORK_GATEWAY dev $OVS_PHYSICAL_BRIDGE
-        fi
-    fi
-
-    if is_neutron_ovs_base_plugin; then
-        neutron_ovs_base_cleanup
-    fi
-
-    if [[ $Q_AGENT == "linuxbridge" ]]; then
-        neutron_lb_cleanup
-    fi
-
-    # delete all namespaces created by neutron
-    for ns in $(sudo ip netns list | grep -o -E '(qdhcp|qrouter|fip|snat)-[0-9a-f-]*'); do
-        sudo ip netns delete ${ns}
-    done
-
-    if [[ $Q_AGENT == "ovn" ]]; then
-        cleanup_ovn
-    fi
-}
-
-
-function _create_neutron_conf_dir {
-    # Put config files in ``NEUTRON_CONF_DIR`` for everyone to find
-    sudo install -d -o $STACK_USER $NEUTRON_CONF_DIR
-}
-
-# _configure_neutron_common()
-# Set common config for all neutron server and agents.
-# This MUST be called before other ``_configure_neutron_*`` functions.
-function _configure_neutron_common {
-    _create_neutron_conf_dir
-
-    # Uses oslo config generator to generate core sample configuration files
-    (cd $NEUTRON_DIR && exec ./tools/generate_config_file_samples.sh)
-
-    cp $NEUTRON_DIR/etc/neutron.conf.sample $NEUTRON_CONF
-
-    Q_POLICY_FILE=$NEUTRON_CONF_DIR/policy.json
-
-    # allow neutron user to administer neutron to match neutron account
-    # NOTE(amotoki): This is required for nova works correctly with neutron.
-    if [ -f $NEUTRON_DIR/etc/policy.json ]; then
-        cp $NEUTRON_DIR/etc/policy.json $Q_POLICY_FILE
-        sed -i 's/"context_is_admin":  "role:admin"/"context_is_admin":  "role:admin or user_name:neutron"/g' $Q_POLICY_FILE
-    else
-        echo '{"context_is_admin":  "role:admin or user_name:neutron"}' > $Q_POLICY_FILE
-    fi
-
-    # Set plugin-specific variables ``Q_DB_NAME``, ``Q_PLUGIN_CLASS``.
-    # For main plugin config file, set ``Q_PLUGIN_CONF_PATH``, ``Q_PLUGIN_CONF_FILENAME``.
-    neutron_plugin_configure_common
-
-    if [[ "$Q_PLUGIN_CONF_PATH" == '' || "$Q_PLUGIN_CONF_FILENAME" == '' || "$Q_PLUGIN_CLASS" == '' ]]; then
-        die $LINENO "Neutron plugin not set.. exiting"
-    fi
-
-    # If needed, move config file from ``$NEUTRON_DIR/etc/neutron`` to ``NEUTRON_CONF_DIR``
-    mkdir -p /$Q_PLUGIN_CONF_PATH
-    Q_PLUGIN_CONF_FILE=$Q_PLUGIN_CONF_PATH/$Q_PLUGIN_CONF_FILENAME
-    # NOTE(hichihara): Some neutron vendor plugins were already decomposed and
-    # there is no config file in Neutron tree. They should prepare the file in each plugin.
-    if [ -f "$NEUTRON_DIR/$Q_PLUGIN_CONF_FILE.sample" ]; then
-        cp "$NEUTRON_DIR/$Q_PLUGIN_CONF_FILE.sample" /$Q_PLUGIN_CONF_FILE
-    elif [ -f $NEUTRON_DIR/$Q_PLUGIN_CONF_FILE ]; then
-        cp $NEUTRON_DIR/$Q_PLUGIN_CONF_FILE /$Q_PLUGIN_CONF_FILE
-    fi
-
-    iniset $NEUTRON_CONF database connection `database_connection_url $Q_DB_NAME`
-    iniset $NEUTRON_CONF DEFAULT state_path $DATA_DIR/neutron
-    iniset $NEUTRON_CONF DEFAULT use_syslog $SYSLOG
-    iniset $NEUTRON_CONF DEFAULT bind_host $Q_LISTEN_ADDRESS
-    iniset $NEUTRON_CONF oslo_concurrency lock_path $DATA_DIR/neutron/lock
-
-    # NOTE(freerunner): Need to adjust Region Name for nova in multiregion installation
-    iniset $NEUTRON_CONF nova region_name $REGION_NAME
-
-    if [ "$VIRT_DRIVER" = 'fake' ]; then
-        # Disable arbitrary limits
-        iniset $NEUTRON_CONF quotas quota_network -1
-        iniset $NEUTRON_CONF quotas quota_subnet -1
-        iniset $NEUTRON_CONF quotas quota_port -1
-        iniset $NEUTRON_CONF quotas quota_security_group -1
-        iniset $NEUTRON_CONF quotas quota_security_group_rule -1
-    fi
-
-    # Format logging
-    setup_logging $NEUTRON_CONF
-
-    if is_service_enabled tls-proxy && [ "$NEUTRON_DEPLOY_MOD_WSGI" == "False" ]; then
-        # Set the service port for a proxy to take the original
-        iniset $NEUTRON_CONF DEFAULT bind_port "$Q_PORT_INT"
-        iniset $NEUTRON_CONF oslo_middleware enable_proxy_headers_parsing True
-    fi
-
-    _neutron_setup_rootwrap
-}
-
-function _configure_neutron_dhcp_agent {
-
-    cp $NEUTRON_DIR/etc/dhcp_agent.ini.sample $Q_DHCP_CONF_FILE
-
-    iniset $Q_DHCP_CONF_FILE DEFAULT debug $ENABLE_DEBUG_LOG_LEVEL
-    # make it so we have working DNS from guests
-    iniset $Q_DHCP_CONF_FILE DEFAULT dnsmasq_local_resolv True
-    iniset $Q_DHCP_CONF_FILE AGENT root_helper "$Q_RR_COMMAND"
-    if [[ "$Q_USE_ROOTWRAP_DAEMON" == "True" ]]; then
-        iniset $Q_DHCP_CONF_FILE AGENT root_helper_daemon "$Q_RR_DAEMON_COMMAND"
-    fi
-
-    if ! is_service_enabled q-l3; then
-        if [[ "$ENABLE_ISOLATED_METADATA" = "True" ]]; then
-            iniset $Q_DHCP_CONF_FILE DEFAULT enable_isolated_metadata $ENABLE_ISOLATED_METADATA
-            iniset $Q_DHCP_CONF_FILE DEFAULT enable_metadata_network $ENABLE_METADATA_NETWORK
-        else
-            if [[ "$ENABLE_METADATA_NETWORK" = "True" ]]; then
-                die "$LINENO" "Enable isolated metadata is a must for metadata network"
-            fi
-        fi
-    fi
-
-    _neutron_setup_interface_driver $Q_DHCP_CONF_FILE
-
-    neutron_plugin_configure_dhcp_agent $Q_DHCP_CONF_FILE
-}
-
-
-function _configure_neutron_metadata_agent {
-    cp $NEUTRON_DIR/etc/metadata_agent.ini.sample $Q_META_CONF_FILE
-
-    iniset $Q_META_CONF_FILE DEFAULT debug $ENABLE_DEBUG_LOG_LEVEL
-    iniset $Q_META_CONF_FILE DEFAULT nova_metadata_host $Q_META_DATA_IP
-    iniset $Q_META_CONF_FILE DEFAULT metadata_workers $API_WORKERS
-    iniset $Q_META_CONF_FILE AGENT root_helper "$Q_RR_COMMAND"
-    if [[ "$Q_USE_ROOTWRAP_DAEMON" == "True" ]]; then
-        iniset $Q_META_CONF_FILE AGENT root_helper_daemon "$Q_RR_DAEMON_COMMAND"
-    fi
-}
-
-function _configure_neutron_ceilometer_notifications {
-    iniset $NEUTRON_CONF oslo_messaging_notifications driver messagingv2
-}
-
-function _configure_neutron_metering {
-    neutron_agent_metering_configure_common
-    neutron_agent_metering_configure_agent
-}
-
-function _configure_dvr {
-    iniset $NEUTRON_CONF DEFAULT router_distributed True
-    iniset $Q_L3_CONF_FILE DEFAULT agent_mode $Q_DVR_MODE
-}
-
-
-# _configure_neutron_plugin_agent() - Set config files for neutron plugin agent
-# It is called when q-agt is enabled.
-function _configure_neutron_plugin_agent {
-    # Specify the default root helper prior to agent configuration to
-    # ensure that an agent's configuration can override the default
-    iniset /$Q_PLUGIN_CONF_FILE agent root_helper "$Q_RR_COMMAND"
-    if [[ "$Q_USE_ROOTWRAP_DAEMON" == "True" ]]; then
-        iniset /$Q_PLUGIN_CONF_FILE  agent root_helper_daemon "$Q_RR_DAEMON_COMMAND"
-    fi
-    iniset $NEUTRON_CONF DEFAULT debug $ENABLE_DEBUG_LOG_LEVEL
-
-    # Configure agent for plugin
-    neutron_plugin_configure_plugin_agent
-}
-
-function _replace_api_paste_composite {
-    local sep
-    sep=$(echo -ne "\x01")
-    # Replace it
-    $sudo sed -i -e "s/\/\: neutronversions_composite/\/"${NEUTRON_ENDPOINT_SERVICE_NAME}"\/\: neutronversions_composite/" "$Q_API_PASTE_FILE"
-    $sudo sed -i -e "s/\/healthcheck\: healthcheck/\/"${NEUTRON_ENDPOINT_SERVICE_NAME}"\/healthcheck\: healthcheck/" "$Q_API_PASTE_FILE"
-    $sudo sed -i -e "s/\/v2.0\: neutronapi_v2_0/\/"${NEUTRON_ENDPOINT_SERVICE_NAME}"\/v2.0\: neutronapi_v2_0/" "$Q_API_PASTE_FILE"
-}
-
-# _configure_neutron_service() - Set config files for neutron service
-# It is called when q-svc is enabled.
-function _configure_neutron_service {
-    Q_API_PASTE_FILE=$NEUTRON_CONF_DIR/api-paste.ini
-    cp $NEUTRON_DIR/etc/api-paste.ini $Q_API_PASTE_FILE
-
-    if [[ -n "$NEUTRON_ENDPOINT_SERVICE_NAME" ]]; then
-        _replace_api_paste_composite
-    fi
-
-    # Update either configuration file with plugin
-    iniset $NEUTRON_CONF DEFAULT core_plugin $Q_PLUGIN_CLASS
-
-    iniset $NEUTRON_CONF DEFAULT debug $ENABLE_DEBUG_LOG_LEVEL
-    iniset $NEUTRON_CONF oslo_policy policy_file $Q_POLICY_FILE
-
-    iniset $NEUTRON_CONF DEFAULT auth_strategy $Q_AUTH_STRATEGY
-    configure_keystone_authtoken_middleware $NEUTRON_CONF $Q_ADMIN_USERNAME
-
-    # Configuration for neutron notifications to nova.
-    iniset $NEUTRON_CONF DEFAULT notify_nova_on_port_status_changes $Q_NOTIFY_NOVA_PORT_STATUS_CHANGES
-    iniset $NEUTRON_CONF DEFAULT notify_nova_on_port_data_changes $Q_NOTIFY_NOVA_PORT_DATA_CHANGES
-
-    configure_keystone_authtoken_middleware $NEUTRON_CONF nova nova
-
-    # Configuration for placement client
-    configure_keystone_authtoken_middleware $NEUTRON_CONF placement placement
-
-    # Configure plugin
-    neutron_plugin_configure_service
-}
-
-# Utility Functions
-#------------------
-
-# _neutron_service_plugin_class_add() - add service plugin class
-function _neutron_service_plugin_class_add {
-    local service_plugin_class=$1
-    if [[ $Q_SERVICE_PLUGIN_CLASSES == '' ]]; then
-        Q_SERVICE_PLUGIN_CLASSES=$service_plugin_class
-    elif [[ ! ,${Q_SERVICE_PLUGIN_CLASSES}, =~ ,${service_plugin_class}, ]]; then
-        Q_SERVICE_PLUGIN_CLASSES="$Q_SERVICE_PLUGIN_CLASSES,$service_plugin_class"
-    fi
-}
-
-# _neutron_ml2_extension_driver_add_old() - add ML2 extension driver
-function _neutron_ml2_extension_driver_add_old {
-    local extension=$1
-    if [[ $Q_ML2_PLUGIN_EXT_DRIVERS == '' ]]; then
-        Q_ML2_PLUGIN_EXT_DRIVERS=$extension
-    elif [[ ! ,${Q_ML2_PLUGIN_EXT_DRIVERS}, =~ ,${extension}, ]]; then
-        Q_ML2_PLUGIN_EXT_DRIVERS="$Q_ML2_PLUGIN_EXT_DRIVERS,$extension"
-    fi
-}
-
-# mutnauq_server_config_add() - add server config file
-function mutnauq_server_config_add {
-    _Q_PLUGIN_EXTRA_CONF_FILES_ABS+=($1)
-}
-
-# _neutron_deploy_rootwrap_filters() - deploy rootwrap filters to $Q_CONF_ROOTWRAP_D (owned by root).
-function _neutron_deploy_rootwrap_filters {
-    if [[ "$Q_USE_ROOTWRAP" == "False" ]]; then
-        return
-    fi
-    local srcdir=$1
-    sudo install -d -o root -m 755 $Q_CONF_ROOTWRAP_D
-    sudo install -o root -m 644 $srcdir/etc/neutron/rootwrap.d/* $Q_CONF_ROOTWRAP_D/
-}
-
-# _neutron_setup_rootwrap() - configure Neutron's rootwrap
-function _neutron_setup_rootwrap {
-    if [[ "$Q_USE_ROOTWRAP" == "False" ]]; then
-        return
-    fi
-    # Wipe any existing ``rootwrap.d`` files first
-    Q_CONF_ROOTWRAP_D=$NEUTRON_CONF_DIR/rootwrap.d
-    if [[ -d $Q_CONF_ROOTWRAP_D ]]; then
-        sudo rm -rf $Q_CONF_ROOTWRAP_D
-    fi
-
-    _neutron_deploy_rootwrap_filters $NEUTRON_DIR
-
-    # Set up ``rootwrap.conf``, pointing to ``$NEUTRON_CONF_DIR/rootwrap.d``
-    # location moved in newer versions, prefer new location
-    if test -r $NEUTRON_DIR/etc/neutron/rootwrap.conf; then
-        sudo install -o root -g root -m 644 $NEUTRON_DIR/etc/neutron/rootwrap.conf $Q_RR_CONF_FILE
-    else
-        sudo install -o root -g root -m 644 $NEUTRON_DIR/etc/rootwrap.conf $Q_RR_CONF_FILE
-    fi
-    sudo sed -e "s:^filters_path=.*$:filters_path=$Q_CONF_ROOTWRAP_D:" -i $Q_RR_CONF_FILE
-    sudo sed -e 's:^exec_dirs=\(.*\)$:exec_dirs=\1,/usr/local/bin:' -i $Q_RR_CONF_FILE
-
-    # Specify ``rootwrap.conf`` as first parameter to neutron-rootwrap
-    ROOTWRAP_SUDOER_CMD="$NEUTRON_ROOTWRAP $Q_RR_CONF_FILE *"
-    ROOTWRAP_DAEMON_SUDOER_CMD="$NEUTRON_ROOTWRAP-daemon $Q_RR_CONF_FILE"
-
-    # Set up the rootwrap sudoers for neutron
-    TEMPFILE=`mktemp`
-    echo "$STACK_USER ALL=(root) NOPASSWD: $ROOTWRAP_SUDOER_CMD" >$TEMPFILE
-    echo "$STACK_USER ALL=(root) NOPASSWD: $ROOTWRAP_DAEMON_SUDOER_CMD" >>$TEMPFILE
-    chmod 0440 $TEMPFILE
-    sudo chown root:root $TEMPFILE
-    sudo mv $TEMPFILE /etc/sudoers.d/neutron-rootwrap
-
-    # Update the root_helper
-    iniset $NEUTRON_CONF agent root_helper "$Q_RR_COMMAND"
-    if [[ "$Q_USE_ROOTWRAP_DAEMON" == "True" ]]; then
-        iniset $NEUTRON_CONF agent root_helper_daemon "$Q_RR_DAEMON_COMMAND"
-    fi
-}
-
-function _neutron_setup_interface_driver {
-
-    # ovs_use_veth needs to be set before the plugin configuration
-    # occurs to allow plugins to override the setting.
-    iniset $1 DEFAULT ovs_use_veth $Q_OVS_USE_VETH
-
-    neutron_plugin_setup_interface_driver $1
-}
-# Functions for Neutron Exercises
-#--------------------------------
-
-function delete_probe {
-    local from_net="$1"
-    net_id=`_get_net_id $from_net`
-    probe_id=`neutron-debug --os-tenant-name admin --os-username admin --os-password $ADMIN_PASSWORD probe-list -c id -c network_id | grep $net_id | awk '{print $2}'`
-    neutron-debug --os-tenant-name admin --os-username admin probe-delete $probe_id
-}
-
-function _get_net_id {
-    openstack --os-cloud devstack-admin --os-region-name="$REGION_NAME" --os-project-name admin --os-username admin --os-password $ADMIN_PASSWORD network list | grep $1 | awk '{print $2}'
-}
-
-function _get_probe_cmd_prefix {
-    local from_net="$1"
-    net_id=`_get_net_id $from_net`
-    probe_id=`neutron-debug --os-tenant-name admin --os-username admin --os-password $ADMIN_PASSWORD probe-list -c id -c network_id | grep $net_id | awk '{print $2}' | head -n 1`
-    echo "$Q_RR_COMMAND ip netns exec qprobe-$probe_id"
-}
-
-# ssh check
-function _ssh_check_neutron {
-    local from_net=$1
-    local key_file=$2
-    local ip=$3
-    local user=$4
-    local timeout_sec=$5
-    local probe_cmd = ""
-    probe_cmd=`_get_probe_cmd_prefix $from_net`
-    local testcmd="$probe_cmd ssh -o StrictHostKeyChecking=no -i $key_file ${user}@$ip echo success"
-    test_with_retry "$testcmd" "server $ip didn't become ssh-able" $timeout_sec
-}
-
-function plugin_agent_add_l2_agent_extension {
-    local l2_agent_extension=$1
-    if [[ -z "$L2_AGENT_EXTENSIONS" ]]; then
-        L2_AGENT_EXTENSIONS=$l2_agent_extension
-    elif [[ ! ,${L2_AGENT_EXTENSIONS}, =~ ,${l2_agent_extension}, ]]; then
-        L2_AGENT_EXTENSIONS+=",$l2_agent_extension"
-    fi
-}
-
-# Restore xtrace
-$_XTRACE_NEUTRON
-
-# Tell emacs to use shell-script-mode
-## Local variables:
-## mode: shell-script
-## End:
+source $TOP_DIR/lib/neutron