labs: check settings in setup_horizon.sh

Check and document configuration settings for horizon.

Change-Id: I6ba7981c699c64e58feecd97017f2b1072da95c2

labs/scripts/setup_horizon.sh

@@ -19,6 +19,36 @@ sudo apt-get install -y apache2 memcached libapache2-mod-wsgi \
 echo "Purging Ubuntu theme."
 sudo dpkg --purge openstack-dashboard-ubuntu-theme
 
+function check_dashboard_settings {
+    local memcached_conf=/etc/memcached.conf
+    local dashboard_conf=/etc/openstack-dashboard/local_settings.py
+
+    # Port is a number on line starting with "-p "
+    local port=$(grep -Po -- '(?<=^-p )\d+' $memcached_conf)
+
+    # Interface is an IP address on line starting with "-l "
+    local interface=$(grep -Po -- '(?<=^-l )[\d\.]+' $memcached_conf)
+
+    echo "memcached listening on $interface:$port."
+
+    # Line should read something like: 'LOCATION' : '127.0.0.1:11211',
+    if grep "LOCATION.*$interface:$port" $dashboard_conf; then
+        echo "$dashboard_conf agrees."
+    else
+        echo >&2 "$dashboard_conf disagrees. Aborting."
+        exit 1
+    fi
+
+    echo -n "Time zone setting: "
+    grep TIME_ZONE $dashboard_conf
+
+    echo -n "Allowed hosts: "
+    grep "^ALLOWED_HOSTS" $dashboard_conf
+}
+
+echo "Checking dashboard configuration."
+check_dashboard_settings
+
 echo "Reloading apache and memcached service."
 sudo service apache2 restart
 sudo service memcached restart