# lib/horizon

# Functions to control the configuration and operation of the horizon service

# <do not include this template file in ``stack.sh``!>

# Dependencies:

# ``functions`` file

# ``apache`` file

# ``SERVICE_{TENANT_NAME|PASSWORD}`` must be defined

# <list other global vars that are assumed to be defined>

# ``stack.sh`` calls the entry points in this order:

#

# install_horizon

# configure_horizon

# init_horizon

# start_horizon

# stop_horizon

# cleanup_horizon

# Save trace setting

XTRACE=$(set +o | grep xtrace)

set +o xtrace

# Defaults

# --------

# <define global variables here that belong to this project>

# Set up default directories

HORIZON_DIR=$DEST/horizon

# local_settings.py is used to customize Dashboard settings.

# The example file in Horizon repo is used by default.

HORIZON_SETTINGS=${HORIZON_SETTINGS:-$HORIZON_DIR/openstack_dashboard/local/local_settings.py.example}

# Functions

# ---------

# utility method of setting python option

function _horizon_config_set() {

local file=$1

local section=$2

local option=$3

local value=$4

if grep -q "^$section" $file; then

line=$(sed -ne "/^$section/,/^}/ { /^ *'$option':/ p; }" $file)

if [ -n "$line" ]; then

sed -i -e "/^$section/,/^}/ s/^\( *'$option'\) *:.*$/\1: $value,/" $file

else

sed -i -e "/^$section/ a\n '$option': $value,\n" $file

fi

else

echo -e "\n\n$section = {\n '$option': $value,\n}" >> $file

fi

}

# Entry Points

# ------------

# cleanup_horizon() - Remove residual data files, anything left over from previous

# runs that a clean run would need to clean up

function cleanup_horizon() {

if [[ is_fedora && $DISTRO =~ (rhel6) ]]; then

# If ``/usr/bin/node`` points into ``$DEST``

# we installed it via ``install_nodejs``

if [[ $(readlink -f /usr/bin/node) =~ ($DEST) ]]; then

sudo rm /usr/bin/node

fi

fi

}

# configure_horizon() - Set config files, create data dirs, etc

function configure_horizon() {

setup_develop $HORIZON_DIR

}

# init_horizon() - Initialize databases, etc.

function init_horizon() {

# Remove stale session database.

rm -f $HORIZON_DIR/openstack_dashboard/local/dashboard_openstack.sqlite3

# ``local_settings.py`` is used to override horizon default settings.

local_settings=$HORIZON_DIR/openstack_dashboard/local/local_settings.py

cp $HORIZON_SETTINGS $local_settings

if is_service_enabled neutron; then

_horizon_config_set $local_settings OPENSTACK_NEUTRON_NETWORK enable_security_group $Q_USE_SECGROUP

fi

# enable loadbalancer dashboard in case service is enabled

if is_service_enabled q-lbaas; then

_horizon_config_set $local_settings OPENSTACK_NEUTRON_NETWORK enable_lb True

fi

# Initialize the horizon database (it stores sessions and notices shown to

# users). The user system is external (keystone).

cd $HORIZON_DIR

python manage.py syncdb --noinput

cd $TOP_DIR

# Create an empty directory that apache uses as docroot

sudo mkdir -p $HORIZON_DIR/.blackhole

HORIZON_REQUIRE=''

local horizon_conf=/etc/$APACHE_NAME/$APACHE_CONF_DIR/horizon.conf

if is_ubuntu; then

# Clean up the old config name

sudo rm -f /etc/apache2/sites-enabled/000-default

# Be a good citizen and use the distro tools here

sudo touch $horizon_conf

sudo a2ensite horizon.conf

# WSGI isn't enabled by default, enable it

sudo a2enmod wsgi

elif is_fedora; then

if [[ "$os_RELEASE" -ge "18" ]]; then

# fedora 18 has Require all denied in its httpd.conf

# and requires explicit Require all granted

HORIZON_REQUIRE='Require all granted'

fi

sudo sed '/^Listen/s/^.*$/Listen 0.0.0.0:80/' -i /etc/httpd/conf/httpd.conf

elif is_suse; then

# WSGI isn't enabled by default, enable it

sudo a2enmod wsgi

else

exit_distro_not_supported "apache configuration"

fi

# Remove old log files that could mess with how devstack detects whether Horizon

# has been successfully started (see start_horizon() and functions::screen_it())

sudo rm -f /var/log/$APACHE_NAME/horizon_*

# Configure apache to run horizon

sudo sh -c "sed -e \"

s,%USER%,$APACHE_USER,g;

s,%GROUP%,$APACHE_GROUP,g;

s,%HORIZON_DIR%,$HORIZON_DIR,g;

s,%APACHE_NAME%,$APACHE_NAME,g;

s,%APACHE_SERVER_NAME%,$APACHE_SERVER_NAME,g;

s,%DEST%,$DEST,g;

s,%HORIZON_REQUIRE%,$HORIZON_REQUIRE,g;

\" $FILES/apache-horizon.template >$horizon_conf"

}

# install_horizon() - Collect source and prepare

function install_horizon() {

# Apache installation, because we mark it NOPRIME

install_apache_wsgi

# NOTE(sdague) quantal changed the name of the node binary

if is_ubuntu; then

if [[ ! -e "/usr/bin/node" ]]; then

install_package nodejs-legacy

fi

elif is_fedora && [[ $DISTRO =~ (rhel6) || "$os_RELEASE" -ge "18" ]]; then

install_package nodejs

fi

git_clone $HORIZON_REPO $HORIZON_DIR $HORIZON_BRANCH $HORIZON_TAG

}

# start_horizon() - Start running processes, including screen

function start_horizon() {

restart_apache_server

screen_it horizon "cd $HORIZON_DIR && sudo tail -f /var/log/$APACHE_NAME/horizon_error.log"

}

# stop_horizon() - Stop running processes (non-screen)

function stop_horizon() {

stop_apache_server

}

# Restore xtrace

$XTRACE

# Local variables:

# mode: shell-script

# End: