Handle ENOSYS when creating keyring

[computator]

I am using podman on ChromeOS, and when I try and run a container it gives me an error like this:

Error: OCI runtime error: create keyring `1b4226eb5b136cd0d50f31f68ee57de34c5d4572558545236e682767b1060bc6`: Function not implemented

After some research it seems as if crun is probably missing something like this:
opencontainers/runc#1893

This has some more recent information and discussion regarding namespacing and keyrings if that's a concern:
containers/podman#8384

crun version info:

crun version 0.17.6-58ef-dirty
commit: fd582c529489c0738e7039cbc036781d1d039014
spec: 1.0.0
+SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +YAJL

[giuseppe]

thanks! Is it something like this enough: #596 ?

[computator]

Thanks, that was fast! It seems like that should be sufficient. I can try building and testing it if you think that's worth it?

[giuseppe]

yes thanks. It'd be good if we can confirm it works for you. You could also try the build artifact here: https://github.com/containers/crun/pull/596/checks?check_run_id=1893893194

[computator]

Oh nice, that's much easier. Yes it works!

[giuseppe]

thanks for confirming it!