[HORIZON 4.3.3] Redis connection [horizon] not configured.

[Jonathanm10]

Hello,

I have some trouble understanding something about Horizon.

I have a Docker setup with basically three images, one with apache2, one with mysql and one with redis.

My queue.php, database.php and horizon.php have all the defaults, just the REDIS_HOST is set to my docker redis host.

The thing is that when trying to connect to horizon (/horizon/api/masters), I always get the error mentioned in the title. When looking up the code, I see that for instance RedisMasterSupervisorRepository.php, it forces the connection horizon:

/**
 * Get the Redis connection instance.
 *
 * @return \Illuminate\Redis\Connections\Connection
 */
protected function connection()
{
    return $this->redis->connection('horizon');
}

Does it mean I should configure a horizon redis database in database.php? It doesn't say so in any documentation. Though I tried but unsuccessfully. The error disappear, but the connection stays "inactive".
If I force the connection in RedisManager.php to be default, I have everything working.

Does any of you would know why is wrong with my setup?

Thanks a lot.

[nolanpro]

For anyone else debugging this, the horizon connection is created dynamically by copying the redis configuration set for use: https://github.com/laravel/horizon/blob/34ba24a8054700b20ccfe71a5dc09ffe5df74cb7/src/Horizon.php#L111