[sleepyhead]

And what is the cost of the working hours spent to migrate to Docker compared to just doing a git push to Heroku?

[lambdacomplete]

A few hours a week dedicated to re-building our deployment process (which was a pain since everything had to be provisioned manually for each new project). Not saying it was the best approach, it sure was an improvement and worth the (relatively little) time.

Once again keep in mind that for new projects the process is so streamlined it will take a fraction of the time to set them up.