Maybe you would have figured it out if you thought a bit more deeply about what you wanted to achieve.
You want to schedule things. What is the basic tool we use to schedule on Linux? Cron. Do you need to install it separately? No, it usually comes with most Linux images. What is your container, functionally speaking? A working Linux system. So you can run scripts on it. Lot of these scripts run binaries that come with Linux. Is there a cron binary available? Try using that.
Of course, hindsight is 20/20 but breaking objectives down to their basic core can be helpful.
You want to schedule things. What is the basic tool we use to schedule on Linux? Cron. Do you need to install it separately? No, it usually comes with most Linux images. What is your container, functionally speaking? A working Linux system. So you can run scripts on it. Lot of these scripts run binaries that come with Linux. Is there a cron binary available? Try using that.
Of course, hindsight is 20/20 but breaking objectives down to their basic core can be helpful.