diff --git a/conf/config.js b/conf/config.js
index d97654d..f1e57bc 100644
--- a/conf/config.js
+++ b/conf/config.js
@@ -106,7 +106,7 @@ const conf = convict({
   },
   redis_db: {
     format: String,
-    default: '',
+    default: '__REDIS_DB__',
     env: 'REDIS_DB'
   },
   redis_event_expire: {
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 247f831..deddb9c 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -12,7 +12,6 @@ nodejs_version=15
 # dependencies used by the app
 #pkg_dependencies="redis-server"
 
-
 #=================================================
 # PERSONAL HELPERS
 #=================================================
@@ -24,3 +23,43 @@ nodejs_version=15
 #=================================================
 # FUTURE OFFICIAL HELPERS
 #=================================================
+
+#!/bin/bash
+
+# get the first available redis database
+#
+# usage: ynh_redis_get_free_db
+# | returns: the database number to use
+ynh_redis_get_free_db() {
+	local result max db
+	result=$(redis-cli INFO keyspace)
+
+	# get the num
+	max=$(cat /etc/redis/redis.conf | grep ^databases | grep -Eow "[0-9]+")
+
+	db=0
+	# default Debian setting is 15 databases
+	for i in $(seq 0 "$max")
+	do
+	 	if ! echo "$result" | grep -q "db$i"
+	 	then
+			db=$i
+	 		break 1
+ 		fi
+ 		db=-1
+	done
+
+	test "$db" -eq -1 && ynh_die --message="No available Redis databases..."
+
+	echo "$db"
+}
+
+# Create a master password and set up global settings
+# Please always call this script in install and restore scripts
+#
+# usage: ynh_redis_remove_db database
+# | arg: database - the database to erase
+ynh_redis_remove_db() {
+	local db=$1
+	redis-cli -n "$db" flushall
+}
diff --git a/scripts/install b/scripts/install
index dcc7542..732d3a1 100644
--- a/scripts/install
+++ b/scripts/install
@@ -69,6 +69,15 @@ ynh_script_progression --message="Installing dependencies..." --weight=20
 # Install Nodejs
 ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version
 
+#=================================================
+# CREATE A REDIS DATABASE
+#=================================================
+ynh_script_progression --message="Creating a Redis database..." --weight=5
+
+# Configure redis
+redis_db=$(ynh_redis_get_free_db)
+ynh_app_setting_set --app="$app" --key=redis_db --value="$redis_db"
+
 #=================================================
 # CREATE DEDICATED USER
 #=================================================
diff --git a/scripts/remove b/scripts/remove
index dc4d988..268fe1e 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -51,6 +51,13 @@ ynh_script_progression --message="Removing dependencies..." --weight=1
 
 ynh_remove_nodejs
 
+#=================================================
+# REMOVE THE REDIS DATABASE
+#=================================================
+ynh_script_progression --message="Removing the Redis database..." --weight=1
+
+ynh_redis_remove_db "$redis_db"
+
 #=================================================
 # REMOVE APP MAIN DIR
 #=================================================