I'm finding that when I create a new site with --wpredis, it also forces me to install a local redis server. I'm using ElastiCache in AWS which I've defined in upstream.conf already.
Is there a way to prevent a Redis server from being installed each time? It also over-writes my values in upstream.conf each time.
Also, the Redis plugin when viewing it in WordPress, doesn't immediately use the values in upstream.conf for Redis, rather I had to define them in wp-config.php for the plugin to recognize and use them.