Ask HN: How many of you are effectively using CI

All the hardcore hackers out there, how many of you has got a proper CI pipeline set?

I am also looking into quite a few CI tools like drone, jenkins and travis. Drone is pretty good actually. Would you like it plugged into to a existing automation platform?

Like, one platform that does your CI, cloud deployments etc. would developers prefer that? Especially a cloud automation platform like heroku which has got teams management w/ Ci all in place.