Stop ghost before updating

src/freedombone-app-ghost

@@ -46,6 +46,12 @@ ghost_variables=(GHOST_DOMAIN_NAME
                  DDNS_PROVIDER
                  MY_USERNAME)
 
+function ghost_bust {
+    # kill the started ghost process
+    kill_pid=$(ps aux | grep "ghost run" | awk -F ' ' '{print $2}' | head -n 1)
+    kill $kill_pid
+}
+
 function logging_on_ghost {
     echo -n ''
 }
@@ -182,10 +188,14 @@ function upgrade_ghost {
     if [ ! -d /var/www/$GHOST_DOMAIN_NAME/htdocs ]; then
         return
     fi
+
+    systemctl stop ghost
+
     cd /var/www/$GHOST_DOMAIN_NAME/htdocs
 
     npm i -g ghost-cli
     /usr/local/bin/ghost update
+    ghost_bust
 
     ghost_replace_services
     ghost_remove_offsite_links
@@ -395,9 +405,7 @@ function install_ghost {
 
     ghost install local --port ${GHOST_PORT}
 
-    # kill the started ghost process
-    kill_pid=$(ps aux | grep "ghost run" | awk -F ' ' '{print $2}' | head -n 1)
-    kill $kill_pid
+    ghost_bust
 
     # NOTE: this has to be http, not https
     sed -i "s|\"url\":|\"url\": \"http://${GHOST_DOMAIN_NAME}/\",|g" /var/www/${GHOST_DOMAIN_NAME}/htdocs/config.development.json