I am looking into different FaaS providers and am interested how much disk space I have per function. A function in AWS Lambda has 512 MB of disk space available (see here) and Azure functions have up to 1000 GB of disk space, depending on the pricing model (see here).
How much does a GCP Function have?
When searching the documentation, I could only find that functions do have disk storage, but not how much (see here).
Maybe a better documentation redirection is (as per 2021-10-14):
The filesystem itself is entirely writeable (except for files used by the underlying OS) and is stored within the Cloud Functions instance's memory.
https://cloud.google.com/functions/docs/concepts/exec#file_system
So as per Chris' response/comments,
Cloud Function doesn't have a 'disk space'
Or to be more accurate, the disk space IS the memory space.
Currently cloud functions can be configured for 8GB of memory, which as correctly noted includes the 'filesystem'
A google Cloud function can have between 128 MiB and 2 GiB of memmory.
You can find here the quotas for Cloud Functions
