Setting up Redis

1. Install Redis

apt install redis-server

2. Update configs

> nano /etc/redis/redis.conf
bind * -::*
supervised systemd
maxmemory-policy noeviction
requirepass <REALLY_LONG_PASSWORD_HERE>

maxmemory-policy is important for services like BullMQ

3. Update UFW and start

ufw allow redis
systemctl restart redis

Extras

Delete all keys with a prefix:

eval "for i, key in ipairs(redis.call('keys', 'prefix:*')) do redis.call('del', key) end" 0