[feature] Exclusion time slot

[SelfMan]

As requested in Discussion #4379 , here is the same suggestion as a feature request

I’m running the container on a Synology NAS, and overall it works great.

The only issue I’m having is with updates. Synology doesn’t update the container automatically, so updates have to be done manually or through a tool like Watchtower, which is what I’m currently using.

I have Watchtower scheduled to run at 2:00 AM. It checks for updates, updates the container if needed, and restarts it. The problem is that this can interfere with the website checks that are scheduled to run around the same time.

It would be great to have an option to define a maintenance window during which all scans are temporarily delayed. Once the maintenance window has passed and the container is back up, the scans could automatically resume.

This would help avoid timeout errors caused by scheduled container restarts between ChangeDetection, sockpuppetbrowser and other containers cause by high CPU load.

Thanks

[sysdump]

You already have Use time schedulerunder Settings > General. You can set it to start at 2:30 AM and run for 23 hours each day to get a 1 hour long daily "maintenance" window.

[SelfMan]

Yes, but also you have to modify 7 entries. There is no global schedule for all.
Or something like "Copy entry to all".

The scheduler also does not allow a overflow to the next day. So let's say I want to start at 5:00AM, I can only go for 18h59m which is midnight. I can't go up to 1:30AM, because that is already the next day. (I am trying to avoid issues caused by the DST changes i.e. 2:00->3:00 and 3:00->2:00)

So maybe this is already a small bug. The scheduler should only check for overflow between the individual schedule items.
The global schedule also does not allow multiple schedules a day. The only option is to set the repetition period.