Schedule one-time job execution after a certain time

[stefanneuhaus]

I am facing difficulties when using at to schedule a one-time job after a certain time like this:

at -f ./my-script.sh now + 1 minute

Using atq I can verify that the job is actually scheduled. But the job won't start before scheduling another job execution using at. I am wondering if running this inside a container might be the cause. What are your thoughts on this?

If this is actually caused by the execution inside the container, than having supercronic support this case might be valuable.

[UserNotFound]

I don't think I understand your issue, can you share how this is related to Supercronic? An example crontab would be great.

[stefanneuhaus]

Sure. Actually my issue is twofold:

a) I am currently facing the following problem: I need to start a job inside my container with a certain time offset (+1 min) after container start. Normally I would use at for this. Unfortunately I am facing issues when using "at" inside a container (works perfectly outside a container). My first thought was that this might by caused by the same things that hinder use of cron jobs inside a container and that led to the development of supercronic. Hence I was wondering what your thoughts on this are.

b) One solution to the problem would be to extend supercronic to support one-time asynchronous tasks. As this is not super clean I would fully understand if you had any objections.