Installation of Grist works

conf/default.env

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+APP_HOME_URL=https://__DOMAIN__
+GRIST_FORWARD_AUTH_HEADER=remote-user
+GRIST_ORG_IN_PATH=true
+GRIST_SANDBOX_FLAVOR=gvisor
+GRIST_HIDE_UI_ELEMENTS=billing,sendToDrive
+GRIST_DEFAULT_LOCALE=__LANGUAGE__
+GRIST_ANON_PLAYGROUND=false
+REDIS_URL=redis://localhost:6379/__REDIS_DB__
+GRIST_INST_DIR=__DATA_DIR__
+GRIST_CHECKPOINT=1
+
+TYPEORM_TYPE=postgres
+TYPEORM_HOST=localhost
+TYPEORM_PORT=5432
+TYPEORM_DATABASE=__APP__
+TYPEORM_USERNAME=__DB_USER__
+TYPEORM_PASSWORD=__DB_PWD__
+TYPEORM_LOGGING=false

scripts/ynh_redis

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+#!/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
+}