@@ -360,6 +360,22 @@ Be aware that there are some features currently missing in cells, one notable

 one being security groups.  The exercises have been patched to disable

 functionality not supported by cells.

+# IPv6

+

+By default, most Openstack services are bound to 0.0.0.0

+and service endpoints are registered as IPv4 addresses.

+A new variable was created to control this behavior, and to

+allow for operation over IPv6 instead of IPv4.

+

+For this, add the following to `local.conf`:

+

+    SERVICE_IP_VERSION=6

+

+When set to "6" devstack services will open listen sockets on ::

+and service endpoints will be registered using HOST_IPV6 as the

+address.  The default value for this setting is `4`.  Dual-mode

+support, for example `4+6` is not currently supported.

+

 # Local Configuration

@@ -137,6 +137,11 @@ Ethernet interface to a bridge on the host. Setting it here also makes it

 available for ``openrc`` to set ``OS_AUTH_URL``. ``HOST_IP`` is not set

 by default.

+``HOST_IPV6`` is normally detected on the first run of ``stack.sh`` but

+will not be set if there is no IPv6 address on the default Ethernet interface.

+Setting it here also makes it available for ``openrc`` to set ``OS_AUTH_URL``.

+``HOST_IPV6`` is not set by default.

+

 Common Configuration Variables

 ==============================

@@ -391,6 +396,8 @@ Multi-host DevStack

         ENABLED_SERVICES=n-vol,n-cpu,n-net,n-api

 IP Version

+----------

+

     | Default: ``IP_VERSION=4+6``

     | This setting can be used to configure DevStack to create either an IPv4,

       IPv6, or dual stack tenant data network by setting ``IP_VERSION`` to

@@ -418,6 +425,25 @@ IP Version

     | *Note: ``FIXED_RANGE_V6`` and ``IPV6_PRIVATE_NETWORK_GATEWAY``

       can be configured with any valid IPv6 prefix. The default values make

       use of an auto-generated ``IPV6_GLOBAL_ID`` to comply with RFC 4193.*

+    |

+

+    | Default: ``SERVICE_IP_VERSION=4``

+    | This setting can be used to configure DevStack to enable services to

+      operate over either IPv4 or IPv6, by setting ``SERVICE_IP_VERSION`` to

+      either ``SERVICE_IP_VERSION=4`` or ``SERVICE_IP_VERSION=6`` respectively.

+      When set to ``4`` devstack services will open listen sockets on 0.0.0.0

+      and service endpoints will be registered using ``HOST_IP`` as the address.

+      When set to ``6`` devstack services will open listen sockets on :: and

+      service endpoints will be registered using ``HOST_IPV6`` as the address.

+      The default value for this setting is ``4``.  Dual-mode support, for

+      example ``4+6`` is not currently supported.

+    | The following optional variable can be used to alter the default IPv6

+      address used:

+    |

+

+    ::

+

+        HOST_IPV6=${some_local_ipv6_address}

 Examples

 ========

@@ -46,7 +46,8 @@ TRACK_DEPENDS=${TRACK_DEPENDS:-False}

 # Save these variables to .stackenv

 STACK_ENV_VARS="BASE_SQL_CONN DATA_DIR DEST ENABLED_SERVICES HOST_IP \

     KEYSTONE_AUTH_PROTOCOL KEYSTONE_AUTH_URI KEYSTONE_SERVICE_URI \

-    LOGFILE OS_CACERT SERVICE_HOST SERVICE_PROTOCOL STACK_USER TLS_IP"

+    LOGFILE OS_CACERT SERVICE_HOST SERVICE_PROTOCOL STACK_USER TLS_IP \

+    HOST_IPV6"

 # Saves significant environment variables to .stackenv for later use

@@ -578,13 +579,14 @@ function get_default_host_ip {

     local floating_range=$2

     local host_ip_iface=$3

     local host_ip=$4

+    local af=$5

     # Search for an IP unless an explicit is set by ``HOST_IP`` environment variable

     if [ -z "$host_ip" -o "$host_ip" == "dhcp" ]; then

         host_ip=""

         # Find the interface used for the default route

-        host_ip_iface=${host_ip_iface:-$(ip route | awk '/default/ {print $5}' | head -1)}

-        local host_ips=$(LC_ALL=C ip -f inet addr show ${host_ip_iface} | awk '/inet/ {split($2,parts,"/");  print parts[1]}')

+        host_ip_iface=${host_ip_iface:-$(ip -f $af route | awk '/default/ {print $5}' | head -1)}

+        local host_ips=$(LC_ALL=C ip -f $af addr show ${host_ip_iface} | awk /$af'/ {split($2,parts,"/");  print parts[1]}')

         local ip

         for ip in $host_ips; do

             # Attempt to filter out IP addresses that are part of the fixed and

@@ -593,6 +595,10 @@ function get_default_host_ip {

             # will be printed and the first IP from the interface will be used.

             # If that is not correct set ``HOST_IP`` in ``localrc`` to the correct

             # address.

+            if [[ "$af" == "inet6" ]]; then

+                host_ip=$ip

+                break;

+            fi

             if ! (address_in_net $ip $fixed_range || address_in_net $ip $floating_range); then

                 host_ip=$ip

                 break;

@@ -65,6 +65,7 @@ CINDER_SERVICE_HOST=${CINDER_SERVICE_HOST:-$SERVICE_HOST}

 CINDER_SERVICE_PORT=${CINDER_SERVICE_PORT:-8776}

 CINDER_SERVICE_PORT_INT=${CINDER_SERVICE_PORT_INT:-18776}

 CINDER_SERVICE_PROTOCOL=${CINDER_SERVICE_PROTOCOL:-$SERVICE_PROTOCOL}

+CINDER_SERVICE_LISTEN_ADDRESS=${CINDER_SERVICE_LISTEN_ADDRESS:-$SERVICE_LISTEN_ADDRESS}

 # What type of LVM device should Cinder use for LVM backend

 # Defaults to default, which is thick, the other valid choice

@@ -222,6 +223,7 @@ function configure_cinder {

     iniset $CINDER_CONF DEFAULT api_paste_config $CINDER_API_PASTE_INI

     iniset $CINDER_CONF DEFAULT rootwrap_config "$CINDER_CONF_DIR/rootwrap.conf"

     iniset $CINDER_CONF DEFAULT osapi_volume_extension cinder.api.contrib.standard_extensions

+    iniset $CINDER_CONF DEFAULT osapi_volume_listen $CINDER_SERVICE_LISTEN_ADDRESS

     iniset $CINDER_CONF DEFAULT state_path $CINDER_STATE_PATH

     iniset $CINDER_CONF oslo_concurrency lock_path $CINDER_STATE_PATH

     iniset $CINDER_CONF DEFAULT periodic_interval $CINDER_PERIODIC_INTERVAL

@@ -70,10 +70,19 @@ function initialize_database_backends {

     # For backward-compatibility, read in the MYSQL_HOST/USER variables and use

     # them as the default values for the DATABASE_HOST/USER variables.

-    MYSQL_HOST=${MYSQL_HOST:-127.0.0.1}

+    MYSQL_HOST=${MYSQL_HOST:-$SERVICE_LOCAL_HOST}

     MYSQL_USER=${MYSQL_USER:-root}

-    DATABASE_HOST=${DATABASE_HOST:-${MYSQL_HOST}}

+    # Set DATABASE_HOST equal to MYSQL_HOST. If SERVICE_IP_VERSION is equal to 6,

+    # set DATABASE_HOST equal to [MYSQL_HOST]. MYSQL_HOST cannot use brackets due

+    # to mysql not using bracketing for IPv6 addresses. DATABASE_HOST must have brackets

+    # due to sqlalchemy only reading IPv6 addresses with brackets.

+    if [[ "$SERVICE_IP_VERSION" == 6 ]]; then

+        DATABASE_HOST=${DATABASE_HOST:-[$MYSQL_HOST]}

+    else

+        DATABASE_HOST=${DATABASE_HOST:-${MYSQL_HOST}}

+    fi

+

     DATABASE_USER=${DATABASE_USER:-${MYSQL_USER}}

     if [ -n "$MYSQL_PASSWORD" ]; then

@@ -90,10 +90,10 @@ function configure_database_mysql {

     # Now update ``my.cnf`` for some local needs and restart the mysql service

-    # Change ‘bind-address’ from localhost (127.0.0.1) to any (0.0.0.0) and

+    # Change ‘bind-address’ from localhost (127.0.0.1) to any (::) and

     # set default db type to InnoDB

     sudo bash -c "source $TOP_DIR/functions && \

-        iniset $my_conf mysqld bind-address 0.0.0.0 && \

+        iniset $my_conf mysqld bind-address "$SERVICE_LISTEN_ADDRESS" && \

         iniset $my_conf mysqld sql_mode STRICT_ALL_TABLES && \

         iniset $my_conf mysqld default-storage-engine InnoDB \

         iniset $my_conf mysqld max_connections 1024 \

@@ -64,6 +64,7 @@ fi

 # Glance connection info.  Note the port must be specified.

 GLANCE_SERVICE_HOST=${GLANCE_SERVICE_HOST:-$SERVICE_HOST}

+GLANCE_SERVICE_LISTEN_ADDRESS=${GLANCE_SERVICE_LISTEN_ADDRESS:-$SERVICE_LISTEN_ADDRESS}

 GLANCE_SERVICE_PORT=${GLANCE_SERVICE_PORT:-9292}

 GLANCE_SERVICE_PORT_INT=${GLANCE_SERVICE_PORT_INT:-19292}

 GLANCE_HOSTPORT=${GLANCE_HOSTPORT:-$GLANCE_SERVICE_HOST:$GLANCE_SERVICE_PORT}

@@ -106,6 +107,7 @@ function configure_glance {

     # Copy over our glance configurations and update them

     cp $GLANCE_DIR/etc/glance-registry.conf $GLANCE_REGISTRY_CONF

     iniset $GLANCE_REGISTRY_CONF DEFAULT debug $ENABLE_DEBUG_LOG_LEVEL

+    iniset $GLANCE_REGISTRY_CONF DEFAULT bind_host $GLANCE_SERVICE_LISTEN_ADDRESS

     inicomment $GLANCE_REGISTRY_CONF DEFAULT log_file

     local dburl=`database_connection_url glance`

     iniset $GLANCE_REGISTRY_CONF DEFAULT sql_connection $dburl

@@ -118,6 +120,7 @@ function configure_glance {

     cp $GLANCE_DIR/etc/glance-api.conf $GLANCE_API_CONF

     iniset $GLANCE_API_CONF DEFAULT debug $ENABLE_DEBUG_LOG_LEVEL

+    iniset $GLANCE_API_CONF DEFAULT bind_host $GLANCE_SERVICE_LISTEN_ADDRESS

     inicomment $GLANCE_API_CONF DEFAULT log_file

     iniset $GLANCE_API_CONF DEFAULT sql_connection $dburl

     iniset $GLANCE_API_CONF DEFAULT use_syslog $SYSLOG

@@ -136,6 +139,7 @@ function configure_glance {

     # Store specific configs

     iniset $GLANCE_API_CONF glance_store filesystem_store_datadir $GLANCE_IMAGE_DIR/

+    iniset $GLANCE_API_CONF DEFAULT registry_host $GLANCE_SERVICE_HOST

     iniset $GLANCE_API_CONF DEFAULT workers "$API_WORKERS"

@@ -202,6 +206,7 @@ function configure_glance {

     iniset $GLANCE_CACHE_CONF DEFAULT admin_user glance

     iniuncomment $GLANCE_CACHE_CONF DEFAULT auth_password

     iniset $GLANCE_CACHE_CONF DEFAULT admin_password $SERVICE_PASSWORD

+    iniset $GLANCE_CACHE_CONF DEFAULT registry_host $GLANCE_SERVICE_HOST

     # Store specific confs

     iniset $GLANCE_CACHE_CONF glance_store filesystem_store_datadir $GLANCE_IMAGE_DIR/

@@ -223,6 +228,7 @@ function configure_glance {

     if is_service_enabled g-search; then

         cp $GLANCE_DIR/etc/glance-search.conf $GLANCE_SEARCH_CONF

         iniset $GLANCE_SEARCH_CONF DEFAULT debug $ENABLE_DEBUG_LOG_LEVEL

+        iniset $GLANCE_SEARCH_CONF DEFAULT bind_host $GLANCE_SERVICE_LISTEN_ADDRESS

         inicomment $GLANCE_SEARCH_CONF DEFAULT log_file

         iniset $GLANCE_SEARCH_CONF DEFAULT use_syslog $SYSLOG

         iniset $GLANCE_SEARCH_CONF DEFAULT sql_connection $dburl

@@ -138,6 +138,8 @@ Q_PORT_INT=${Q_PORT_INT:-19696}

 Q_HOST=${Q_HOST:-$SERVICE_HOST}

 # Default protocol

 Q_PROTOCOL=${Q_PROTOCOL:-$SERVICE_PROTOCOL}

+# Default listen address

+Q_LISTEN_ADDRESS=${Q_LISTEN_ADDRESS:-$SERVICE_LISTEN_ADDRESS}

 # Default admin username

 Q_ADMIN_USERNAME=${Q_ADMIN_USERNAME:-neutron}

 # Default auth strategy

@@ -871,6 +873,7 @@ function _configure_neutron_common {

     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

     # If addition config files are set, make sure their path name is set as well

     if [[ ${#Q_PLUGIN_EXTRA_CONF_FILES[@]} > 0 && $Q_PLUGIN_EXTRA_CONF_PATH == '' ]]; then

         die $LINENO "Neutron additional plugin config not set.. exiting"

@@ -85,6 +85,8 @@ NOVA_SERVICE_HOST=${NOVA_SERVICE_HOST:-$SERVICE_HOST}

 NOVA_SERVICE_PORT=${NOVA_SERVICE_PORT:-8774}

 NOVA_SERVICE_PORT_INT=${NOVA_SERVICE_PORT_INT:-18774}

 NOVA_SERVICE_PROTOCOL=${NOVA_SERVICE_PROTOCOL:-$SERVICE_PROTOCOL}

+NOVA_SERVICE_LOCAL_HOST=${NOVA_SERVICE_LOCAL_HOST:-$SERVICE_LOCAL_HOST}

+NOVA_SERVICE_LISTEN_ADDRESS=${NOVA_SERVICE_LISTEN_ADDRESS:-$SERVICE_LISTEN_ADDRESS}

 EC2_SERVICE_PORT=${EC2_SERVICE_PORT:-8773}

 EC2_SERVICE_PORT_INT=${EC2_SERVICE_PORT_INT:-18773}

@@ -476,11 +478,20 @@ function create_nova_conf {

     iniset $NOVA_CONF DEFAULT default_floating_pool "$PUBLIC_NETWORK_NAME"

     iniset $NOVA_CONF DEFAULT s3_host "$SERVICE_HOST"

     iniset $NOVA_CONF DEFAULT s3_port "$S3_SERVICE_PORT"

-    iniset $NOVA_CONF DEFAULT my_ip "$HOST_IP"

+    if [[ $SERVICE_IP_VERSION == 6 ]]; then

+        iniset $NOVA_CONF DEFAULT my_ip "$HOST_IPV6"

+        iniset $NOVA_CONF DEFAULT use_ipv6 "True"

+    else

+        iniset $NOVA_CONF DEFAULT my_ip "$HOST_IP"

+    fi

     iniset $NOVA_CONF database connection `database_connection_url nova`

     iniset $NOVA_CONF api_database connection `database_connection_url nova_api`

     iniset $NOVA_CONF DEFAULT instance_name_template "${INSTANCE_NAME_PREFIX}%08x"

     iniset $NOVA_CONF osapi_v3 enabled "True"

+    iniset $NOVA_CONF DEFAULT osapi_compute_listen "$NOVA_SERVICE_LISTEN_ADDRESS"

+    iniset $NOVA_CONF DEFAULT ec2_listen "$NOVA_SERVICE_LISTEN_ADDRESS"

+    iniset $NOVA_CONF DEFAULT metadata_listen "$NOVA_SERVICE_LISTEN_ADDRESS"

+    iniset $NOVA_CONF DEFAULT s3_listen "$NOVA_SERVICE_LISTEN_ADDRESS"

     if is_fedora || is_suse; then

         # nova defaults to /usr/local/bin, but fedora and suse pip like to

@@ -560,11 +571,13 @@ function create_nova_conf {

     if is_service_enabled n-novnc || is_service_enabled n-xvnc || [ "$NOVA_VNC_ENABLED" != False ]; then

         # Address on which instance vncservers will listen on compute hosts.

         # For multi-host, this should be the management ip of the compute host.

-        VNCSERVER_LISTEN=${VNCSERVER_LISTEN=127.0.0.1}

-        VNCSERVER_PROXYCLIENT_ADDRESS=${VNCSERVER_PROXYCLIENT_ADDRESS=127.0.0.1}

+        VNCSERVER_LISTEN=${VNCSERVER_LISTEN=$NOVA_SERVICE_LOCAL_HOST}

+        VNCSERVER_PROXYCLIENT_ADDRESS=${VNCSERVER_PROXYCLIENT_ADDRESS=$NOVA_SERVICE_LOCAL_HOST}

         iniset $NOVA_CONF DEFAULT vnc_enabled true

         iniset $NOVA_CONF DEFAULT vncserver_listen "$VNCSERVER_LISTEN"

         iniset $NOVA_CONF DEFAULT vncserver_proxyclient_address "$VNCSERVER_PROXYCLIENT_ADDRESS"

+        iniset $NOVA_CONF DEFAULT novncproxy_host "$NOVA_SERVICE_LISTEN_ADDRESS"

+        iniset $NOVA_CONF DEFAULT xvpvncproxy_host "$NOVA_SERVICE_LISTEN_ADDRESS"

     else

         iniset $NOVA_CONF DEFAULT vnc_enabled false

     fi

@@ -572,11 +585,12 @@ function create_nova_conf {

     if is_service_enabled n-spice; then

         # Address on which instance spiceservers will listen on compute hosts.

         # For multi-host, this should be the management ip of the compute host.

-        SPICESERVER_PROXYCLIENT_ADDRESS=${SPICESERVER_PROXYCLIENT_ADDRESS=127.0.0.1}

-        SPICESERVER_LISTEN=${SPICESERVER_LISTEN=127.0.0.1}

+        SPICESERVER_PROXYCLIENT_ADDRESS=${SPICESERVER_PROXYCLIENT_ADDRESS=$NOVA_SERVICE_LOCAL_HOST}

+        SPICESERVER_LISTEN=${SPICESERVER_LISTEN=$NOVA_SERVICE_LOCAL_HOST}

         iniset $NOVA_CONF spice enabled true

         iniset $NOVA_CONF spice server_listen "$SPICESERVER_LISTEN"

         iniset $NOVA_CONF spice server_proxyclient_address "$SPICESERVER_PROXYCLIENT_ADDRESS"

+        iniset $NOVA_CONF spice html5proxy_host "$NOVA_SERVICE_LISTEN_ADDRESS"

     else

         iniset $NOVA_CONF spice enabled false

     fi

@@ -616,6 +630,7 @@ function create_nova_conf {

     fi

     if is_service_enabled n-sproxy; then

+        iniset $NOVA_CONF serial_console serialproxy_host "$NOVA_SERVICE_LISTEN_ADDRESS"

         iniset $NOVA_CONF serial_console enabled True

     fi

 }

@@ -45,6 +45,7 @@ SWIFT3_DIR=$DEST/swift3

 SWIFT_SERVICE_PROTOCOL=${SWIFT_SERVICE_PROTOCOL:-$SERVICE_PROTOCOL}

 SWIFT_DEFAULT_BIND_PORT_INT=${SWIFT_DEFAULT_BIND_PORT_INT:-8081}

+SWIFT_SERVICE_LOCAL_HOST=${SWIFT_SERVICE_LOCAL_HOST:-$SERVICE_LOCAL_HOST}

 # TODO: add logging to different location.

@@ -668,9 +669,9 @@ function init_swift {

         swift-ring-builder account.builder create ${SWIFT_PARTITION_POWER_SIZE} ${SWIFT_REPLICAS} 1

         for node_number in ${SWIFT_REPLICAS_SEQ}; do

-            swift-ring-builder object.builder add z${node_number}-127.0.0.1:$(( OBJECT_PORT_BASE + 10 * (node_number - 1) ))/sdb1 1

-            swift-ring-builder container.builder add z${node_number}-127.0.0.1:$(( CONTAINER_PORT_BASE + 10 * (node_number - 1) ))/sdb1 1

-            swift-ring-builder account.builder add z${node_number}-127.0.0.1:$(( ACCOUNT_PORT_BASE + 10 * (node_number - 1) ))/sdb1 1

+            swift-ring-builder object.builder add z${node_number}-${SWIFT_SERVICE_LOCAL_HOST}:$(( OBJECT_PORT_BASE + 10 * (node_number - 1) ))/sdb1 1

+            swift-ring-builder container.builder add z${node_number}-${SWIFT_SERVICE_LOCAL_HOST}:$(( CONTAINER_PORT_BASE + 10 * (node_number - 1) ))/sdb1 1

+            swift-ring-builder account.builder add z${node_number}-${SWIFT_SERVICE_LOCAL_HOST}:$(( ACCOUNT_PORT_BASE + 10 * (node_number - 1) ))/sdb1 1

         done

         swift-ring-builder object.builder rebalance

         swift-ring-builder container.builder rebalance

@@ -32,14 +32,15 @@ MYSQL_PASSWORD=stackdb

 RABBIT_PASSWORD=stackqueue

 SERVICE_PASSWORD=$ADMIN_PASSWORD

-# ``HOST_IP`` should be set manually for best results if the NIC configuration

-# of the host is unusual, i.e. ``eth1`` has the default route but ``eth0`` is the

-# public interface.  It is auto-detected in ``stack.sh`` but often is indeterminate

-# on later runs due to the IP moving from an Ethernet interface to a bridge on

-# the host. Setting it here also makes it available for ``openrc`` to include

-# when setting ``OS_AUTH_URL``.

-# ``HOST_IP`` is not set by default.

+# ``HOST_IP`` and ``HOST_IPV6`` should be set manually for best results if

+# the NIC configuration of the host is unusual, i.e. ``eth1`` has the default

+# route but ``eth0`` is the public interface.  They are auto-detected in

+# ``stack.sh`` but often is indeterminate on later runs due to the IP moving

+# from an Ethernet interface to a bridge on the host. Setting it here also

+# makes it available for ``openrc`` to include when setting ``OS_AUTH_URL``.

+# Neither is set by default.

 #HOST_IP=w.x.y.z

+#HOST_IPV6=2001:db8::7

 # Logging

@@ -1403,7 +1403,10 @@ fi

 echo ""

 echo ""

 echo ""

-echo "This is your host ip: $HOST_IP"

+echo "This is your host IP address: $HOST_IP"

+if [ "$HOST_IPV6" != "" ]; then

+    echo "This is your host IPv6 address: $HOST_IPV6"

+fi

 # If you installed Horizon on this server you should be able

 # to access the site using your browser.

@@ -669,14 +669,54 @@ FIXED_RANGE=${FIXED_RANGE:-10.0.0.0/24}

 FIXED_NETWORK_SIZE=${FIXED_NETWORK_SIZE:-256}

 HOST_IP_IFACE=${HOST_IP_IFACE:-}

 HOST_IP=${HOST_IP:-}

+HOST_IPV6=${HOST_IPV6:-}

-HOST_IP=$(get_default_host_ip $FIXED_RANGE $FLOATING_RANGE "$HOST_IP_IFACE" "$HOST_IP")

+HOST_IP=$(get_default_host_ip "$FIXED_RANGE" "$FLOATING_RANGE" "$HOST_IP_IFACE" "$HOST_IP" "inet")

 if [ "$HOST_IP" == "" ]; then

     die $LINENO "Could not determine host ip address.  See local.conf for suggestions on setting HOST_IP."

 fi

-# Allow the use of an alternate hostname (such as localhost/127.0.0.1) for service endpoints.

-SERVICE_HOST=${SERVICE_HOST:-$HOST_IP}

+HOST_IPV6=$(get_default_host_ip "" "" "$HOST_IP_IFACE" "$HOST_IPV6" "inet6")

+

+# SERVICE IP version

+# This is the IP version that services should be listening on, as well

+# as using to register their endpoints with keystone.

+SERVICE_IP_VERSION=${SERVICE_IP_VERSION:-4}

+

+# Validate SERVICE_IP_VERSION

+# It would be nice to support "4+6" here as well, but that will require

+# multiple calls into keystone to register endpoints, so for now let's

+# just support one or the other.

+if [[ $SERVICE_IP_VERSION != "4" ]] && [[ $SERVICE_IP_VERSION != "6" ]]; then

+    die $LINENO "SERVICE_IP_VERSION must be either 4 or 6"

+fi

+

+if [[ "$SERVICE_IP_VERSION" == 4 ]]; then

+    DEF_SERVICE_HOST=$HOST_IP

+    DEF_SERVICE_LOCAL_HOST=127.0.0.1

+    DEF_SERVICE_LISTEN_ADDRESS=0.0.0.0

+fi

+

+if [[ "$SERVICE_IP_VERSION" == 6 ]]; then

+    if [ "$HOST_IPV6" == "" ]; then

+        die $LINENO "Could not determine host IPv6 address.  See local.conf for suggestions on setting HOST_IPV6."

+    fi

+

+    DEF_SERVICE_HOST=[$HOST_IPV6]

+    DEF_SERVICE_LOCAL_HOST=::1

+    DEF_SERVICE_LISTEN_ADDRESS=::

+fi

+

+# This is either 0.0.0.0 for IPv4 or :: for IPv6

+SERVICE_LISTEN_ADDRESS=${SERVICE_LISTEN_ADDRESS:-${DEF_SERVICE_LISTEN_ADDRESS}}

+

+# Allow the use of an alternate hostname (such as localhost/127.0.0.1) for

+# service endpoints.  Default is dependent on SERVICE_IP_VERSION above.

+SERVICE_HOST=${SERVICE_HOST:-${DEF_SERVICE_HOST}}

+# This is either 127.0.0.1 for IPv4 or ::1 for IPv6

+SERVICE_LOCAL_HOST=${SERVICE_LOCAL_HOST:-${DEF_SERVICE_LOCAL_HOST}}

+

+REGION_NAME=${REGION_NAME:-RegionOne}

 # Configure services to use syslog instead of writing to individual log files

 SYSLOG=$(trueorfalse False SYSLOG)