Thank you very much! Scheduling could be an interesting feature. Why do you schedule your containers? Have you tried another approach?
Examples:
1. Crawl a website, and store the data to a database - update every few hours.
2. Check a website for changes.
3. Process log data, and save it to another location.
Docker may be overkill for some of these, but it provides a simple way to launch a new task in a container with all dependencies installed. The overhead seems to be relatively small for starting a new container, so it's worth the overhead vs. configuring a machine to run the container.