Can I increase swap space in app services?

Question

Hello,

I am wondering if I can increase the swap size on a app service?
We run both linux and windows as OS

On the linux box I can see that we have 2gb configured

             total        used        free      shared  buff/cache   available
Mem:          3.1Gi       1.7Gi       602Mi       201Mi       786Mi       985Mi
Swap:         2.0Gi       554Mi       1.5Gi

We have plenty of space however according to the service plan (250 gb)

Answer 1

Hi - thanks for the question.

Not in so far as I'm aware as Kudu abstracts the underlying machine / OS capabilities (App service apps run in that sandbox)

Also, you need to keep in mind the storage allocated to a plan is shared between worker VMs
For more info please see the following
https://github.com/projectkudu/kudu/wiki/Understanding-the-Azure-App-Service-file-system
As you can see there is some access to the local VM disk but this is considered volatile

You can alter the way App service works with regard to storage, which is useful for edge case use-cases. See https://learn.microsoft.com/en-us/azure/app-service/overview-local-cache for regular web apps and https://github.com/Azure-App-Service/KuduLite/wiki/App-Cache for plans which run containers

However this does not relate to OS swap space.