We use a tool called squash.io. It's geared more for instant QA environment than production workloads, but it has the advantage of being super simple. It just l

We use a tool called squash.io. It's geared more for instant QA environment than production workloads, but it has the advantage of being super simple. It just listens for feature branch commits and grabs the docker-compose file and runs it. Funny enough, before we signed up we also considered Heroku since we had a relationship with Salesforce and I was familiar with their product. After an intro call, they never followed up. Guess that was a sign.