Use rake script for elasticsearch index deletion.

contrib/packager.io/functions

@@ -234,17 +234,11 @@ function setup_elasticsearch () {
     ES_CONNECTION="http://127.0.0.1:9200"
   fi
 
-  ES_INDEX="$(zammad run rails r "puts Setting.get('es_index')" 2>> /dev/null)"
-
-  if [ -z "${ES_INDEX}" ]; then
-    ES_INDEX="zammad_production"
-  fi
-
   if [ -n "$(/usr/share/elasticsearch/bin/elasticsearch-plugin list | grep mapper-attachments)" ]; then
     REBUILD_ES_SEARCHINDEX="yes"
 
-    echo "# Deleting old ${ES_INDEX} elasticsearch index..."
-    curl -XDELETE "${ES_CONNECTION}/${ES_INDEX}"
+    echo "# Deleting old elasticsearch index..."
+    zammad run rake searchindex:drop
 
     yes | /usr/share/elasticsearch/bin/elasticsearch-plugin -s remove mapper-attachments
 
@@ -254,7 +248,7 @@ function setup_elasticsearch () {
 
   yes | /usr/share/elasticsearch/bin/elasticsearch-plugin -s install ingest-attachment
 
-  if [ "{ES_CONNECTION}" == "http://127.0.0.1:9200" ]; then
+  if [ "${ES_CONNECTION}" == "http://127.0.0.1:9200" ]; then
     ${INIT_CMD} restart elasticsearch
   else
     echo -e "\n It seems you're running an external Elasticsearch server on ${ES_CONNECTION}"
@@ -277,7 +271,6 @@ function elasticsearch_searchindex_rebuild () {
 }
 
 function update_or_install () {
-  setup_elasticsearch
 
   if [ -f ${ZAMMAD_DIR}/config/database.yml ]; then
     update_database
@@ -300,6 +293,8 @@ function update_or_install () {
     initialise_database
   fi
 
+  setup_elasticsearch
+
   elasticsearch_searchindex_rebuild
 }