diff --git a/scripts/experimental_helper.sh b/scripts/experimental_helper.sh
index aa1c2df..63f3e5c 100644
--- a/scripts/experimental_helper.sh
+++ b/scripts/experimental_helper.sh
@@ -8,4 +8,68 @@
 ynh_delete_file_checksum () {
 	local checksum_setting_name=checksum_${1//[\/ ]/_}	# Replace all '/' and ' ' by '_'
 	ynh_app_setting_delete $app $checksum_setting_name
+}
+
+# Use logrotate to manage the logfile
+#
+# usage: ynh_use_logrotate [logfile] [--non-append|--append] [specific_user/specific_group]
+# | arg: logfile - absolute path of logfile
+# | arg: --non-append - (Option) Replace the config file instead of appending this new config.
+# | arg: specific_user : run logrotate as the specified user and group. If not specified logrotate is runned as root.
+#
+# If no argument provided, a standard directory will be use. /var/log/${app}
+# You can provide a path with the directory only or with the logfile.
+# /parentdir/logdir
+# /parentdir/logdir/logfile.log
+#
+# It's possible to use this helper several times, each config will be added to the same logrotate config file.
+# Unless you use the option --non-append
+ynh_use_logrotate () {
+	local customtee="tee -a"
+	local user_group="${3:-}"
+	if [ $# -gt 0 ] && [ "$1" == "--non-append" ]; then
+		customtee="tee"
+		# Destroy this argument for the next command.
+		shift
+	elif [ $# -gt 1 ] && [ "$2" == "--non-append" ]; then
+		customtee="tee"
+	fi
+	if [ $# -gt 0 ]; then
+		if [ "$(echo ${1##*.})" == "log" ]; then	# Keep only the extension to check if it's a logfile
+			local logfile=$1	# In this case, focus logrotate on the logfile
+		else
+			local logfile=$1/*.log	# Else, uses the directory and all logfile into it.
+		fi
+	else
+		local logfile="/var/log/${app}/*.log" # Without argument, use a defaut directory in /var/log
+	fi
+	local su_directive=""
+	if [[ -n $user_group ]]; then
+		su_directive="	# Run logorotate as specific user - group
+	su ${user_group#*/} ${user_group%/*}"
+	fi
+
+	cat > ./${app}-logrotate << EOF	# Build a config file for logrotate
+$logfile {
+		# Rotate if the logfile exceeds 100Mo
+	size 100M
+		# Keep 12 old log maximum
+	rotate 12
+		# Compress the logs with gzip
+	compress
+		# Compress the log at the next cycle. So keep always 2 non compressed logs
+	delaycompress
+		# Copy and truncate the log to allow to continue write on it. Instead of move the log.
+	copytruncate
+		# Do not do an error if the log is missing
+	missingok
+		# Not rotate if the log is empty
+	notifempty
+		# Keep old logs in the same dir
+	noolddir
+	$su_directive
+}
+EOF
+	sudo mkdir -p $(dirname "$logfile")	# Create the log directory, if not exist
+	cat ${app}-logrotate | sudo $customtee /etc/logrotate.d/$app > /dev/null	# Append this config to the existing config file, or replace the whole config file (depending on $customtee)
 }
\ No newline at end of file
diff --git a/scripts/install b/scripts/install
index f5af2e6..15d4ab1 100755
--- a/scripts/install
+++ b/scripts/install
@@ -151,6 +151,6 @@ else
 fi
 
 # SETUP LOGROTATE
-ynh_use_logrotate $final_path/horde
-ynh_use_logrotate $final_path/horde/services
-ynh_use_logrotate $final_path/horde/services/portal
+ynh_use_logrotate $final_path/horde --non-append www-data/horde
+ynh_use_logrotate $final_path/horde/services --append www-data/horde
+ynh_use_logrotate $final_path/horde/services/portal --append www-data/horde
diff --git a/scripts/restore b/scripts/restore
index b283543..5f1973e 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -51,9 +51,9 @@ ynh_mysql_connect_as $db_name $db_pwd $db_name < ./db.sql
 set_permission
 
 # SETUP LOGROTATE
-ynh_use_logrotate $final_path/horde
-ynh_use_logrotate $final_path/horde/services
-ynh_use_logrotate $final_path/horde/services/portal
+ynh_use_logrotate $final_path/horde --non-append www-data/horde
+ynh_use_logrotate $final_path/horde/services --append www-data/horde
+ynh_use_logrotate $final_path/horde/services/portal --append www-data/horde
 
 # Reload services
 systemctl reload php5-fpm
diff --git a/scripts/upgrade b/scripts/upgrade
index a890469..6640abb 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -62,4 +62,9 @@ config_nginx
 #=================================================
 
 # SECURE FILES AND DIRECTORIES
-set_permission
\ No newline at end of file
+set_permission
+
+# SETUP LOGROTATE
+ynh_use_logrotate $final_path/horde --non-append www-data/horde
+ynh_use_logrotate $final_path/horde/services --append www-data/horde
+ynh_use_logrotate $final_path/horde/services/portal --append www-data/horde