[johnaoss]

People are doing basically everything in Go right now! Front-end web development being the exception (though there is GopherJS...). Projects like Docker, Kubernetes, CockroachDB, Consul (and anything Hashicorp does), Mattermost, and etcd are all being written in Go!

Anecdotally, I've heard people using Go to rewrite some of their Ruby services in which more performance is needed.