Swap failing to allocate on deployment

So if didn’t work as root on shell, I fail to see why it would work in a boot script? I’m using debian containers and it seems to work fine.

# On a machine
root@e2865521f06486:/# fallocate -l 512M /swapfile
root@e2865521f06486:/# ls -l /swapfile 
-rw-r--r-- 1 root root 536870912 Mar 28 01:31 /swapfile

# On an app
root@9b8286d7:/# fallocate -l 512M /swapfile
root@9b8286d7:/# ls -l /swapfile 
-rw-r--r-- 1 root root 536870912 Mar 28 01:32 /swapfile
root@9b8286d7:/# uname -a
Linux 9b8286d7 5.12.2 #1 SMP Mon Oct 3 13:48:56 UTC 2022 x86_64 GNU/Linux

Do you already have a file at that path? Try a rm /swapfile before the fallocate.

Not sure if I was clear but: this is an auto generated script from a library suggested in the documentation. I did not write it and I did not manually create any files on the machine, I just ran rails g dockerfile. I expect it to just work. If I wanted to manually set up my swap I would use EC2 or CloudRun, not Fly. I don’t have time for devops.

That it doesn’t work as root exposes the issue that either something is wrong with the infrastructure, or with the script generator suggested in the docs.

This topic was automatically closed 7 days after the last reply. New replies are no longer allowed.