cri-o 1.29 Tetragon not show namespace/pod information about tetragon

[kkourt]

It seems that this version of cri-o uses paths such as:

/sys/fs/cgroup//kubepods.slice/kubepods-besteffort.slice/kubepods-besteffort-pod2263b521_f8ac_475e_82a0_95937cce8f0f.slice/crio-4ff86f4fe0ebd2556606a6b049b94ae571e3486c4c265230dc8ce87f887ffd15.scope/container

For the container cgroup that do not work well with tetragon.
I think the best solution is to connect to the container runtime (https://github.com/kubernetes/cri-api/blob/c75ef5b/pkg/apis/runtime/v1/api.proto), get the cgroups used, and use the cgroup id to do the mapping. I think we would want to have an option to enable this.

There was a short discussion about this in the Tetragon Community Meeting (July 8th): https://docs.google.com/document/d/1BFMJLdtisiCSLfMct0GHof_ioL-5QVNLEaeMSlk_7Eo/edit#heading=h.cd9xm2lbvnw4.