We have a rather simple app that we manage with Github. When a Pr is merged into our main repo's master branch it gets automatically deployed into production.

We have a rather simple app that we manage with Github. When a Pr is merged into our main repo's master branch it gets automatically deployed into production. whenever we need to roll back something we just use the corresponding Github feature to revert a merge, and that is automatically shoved into production using GH hooks and stuff. Again, we have a rather easy and ancient deploy system, and it just works. We do several updates a week if needed. We try to avoid late Friday afternoon merges, but with a couple alerts here and there (Mostly, New Relic) we have a good coverage to find out about problems.