Heroku Scheduler = Cron Jobs on Render. Would you mind emailing me (see profile) or [email protected] with details on your Rake tasks so we can take a look?
For me, the key was discovering that while both my native and docker builds fail, my Dockerfile.render builds (which use the heroku buildpack) magically work AND I could use that Dockerfile.render build for the Cron Job (I don't think I would have figured out that I could just plop in that Dockerfile Path in the Advanced section).
I have no experience with Docker (someone set up docker-compose stuff for us like 4 years ago as a student project, but I haven't used it). So it was a little overwhelming for me when the Render migration tool thrust Docker on me.
Still testing out some things before configuring my DNS. I'm sure in a week you'll never hear from me again (because things will just work). I enjoy how snappy the Render interface is. Maybe more of a walkthrough (with screenshots) on the cron jobs doc?
The much more significant issue for me is that I honestly have no real clue what to make of Jobs. In Heroku I use Scheduler to run rake tasks. And in Render there's an API Explorer (and my rake tasks fail when I attempt to run them through that) and then I'm supposed to add crons to... my repo (?), and the Jobs I create go... somewhere. I am very confused. I've read the Jobs and Cron Jobs docs like 40 times.