Update ptf-ebpf CI test to Ubuntu 22.04

[jafingerhut]

No description provided.

[jafingerhut]

I have seen that the PSATernaryTest fails when trying to run the ptf-ebpf CI test on Ubuntu 22.04. It passes fine on Ubuntu 20.04. I have done a little bit of debugging, enough to determine that the table entries added, and the packet sent in, are the same on Ubuntu 20.04 and 22.04 tests, but the packet out is different on 22.04, for reasons that I do not understand.

By 2025-Apr-01, we should choose among one of the following courses of action:
(a) disable this CI test
(b) modify the test so it passes on Ubuntu 22.04 (or 24.04)
(c) modify the test so it runs in Ubuntu 20.04 in a container or something similar.

(b) seems preferable, if we can figure out how.

[fruffy]

I have seen that the PSATernaryTest fails when trying to run the ptf-ebpf CI test on Ubuntu 22.04. It passes fine on Ubuntu 20.04. I have done a little bit of debugging, enough to determine that the table entries added, and the packet sent in, are the same on Ubuntu 20.04 and 22.04 tests, but the packet out is different on 22.04, for reasons that I do not understand.

By 2025-Apr-01, we should choose among one of the following courses of action: (a) disable this CI test (b) modify the test so it passes on Ubuntu 22.04 (or 24.04) (c) modify the test so it runs in Ubuntu 20.04 in a container or something similar.

(b) seems preferable, if we can figure out how.

Iirc there are two reasons: Different kernel version and different clang version. The combination causes the produce program to be rejected by the verifier. I can take a look at this.