better check of the crontabs and nginx as final command

bin/docker-entrypoint.sh

@@ -166,11 +166,14 @@ email_cron_job() {
 
   mkdir -p $cron_task_dir
 
+  if ! grep $cron_task_dir $root_crontab > /dev/null; then
     echo "* * * * * run-parts $cron_task_dir" >> $root_crontab
+  fi
   echo "#!/bin/sh" > $cron_task
   chmod +x $cron_task
   echo "su -c \"$process_email\" -ls /bin/bash nginx" >> $cron_task
 
+  crond -f -c /etc/crontabs &
 }
 
 
@@ -202,16 +205,13 @@ if [ ! -f $ssl_key ] && [ ! -L $ssl_key ] && \
   gen_ssl_cert
 fi
 
-if ! grep run-parts /etc/crontabs/root > /dev/null ; then
-  email_cron_job
-fi
-
 php_fpm_setup
 
 install
 
 php-fpm5
 
-nginx -g "pid /tmp/nginx.pid; daemon off;" &
+email_cron_job
+
+nginx -g "pid /tmp/nginx.pid; daemon off;"
 
-crond -f -c /etc/crontabs