Upgrade dependency to avoid license conflicts

[parkerduckworth]

Background

Hello containerd team 👋

We are working on adding more resource guardrails into the Weaviate vector database, and in doing so need to read cgroup limits. Your library here is amazing, and exactly what we need. Unfortunately, we are having license compliance issues by depending on it.

Cgroups currently depends directly on ebpf v0.9.1. In this version of ebpf, this extract-vmlinux file was added to the repository, which contains a GPL-2.0-only clause, which is incompatible with our license compliance guidelines.

The good news is, that with v0.11.0, ebpf removed this file, for similar license conflicts (commit message for the change in their repo):

extract-vmlinux is GPL licensed code which makes it harder for
cilium to graduate in the CNCF. Remove the vendored copy and require
the user to provide the binary instead.

Changes

This PR bumps the ebpf version from v0.9.1 -> v0.11.0 to avoid license compliance issues based on a single file in ebpf, which was introduced in v0.9.1, and removed in v0.11.0.

Tests

The patch has been verified by running tests locally on an Ubuntu (20.04 LTS) VM:

parker@containerd-cgroups-test:~/cgroups$ go test ./... -count=1
ok      github.com/containerd/cgroups/v3        0.003s
ok      github.com/containerd/cgroups/v3/cgroup1        0.083s
?       github.com/containerd/cgroups/v3/cgroup1/stats  [no test files]
ok      github.com/containerd/cgroups/v3/cgroup2        0.007s
?       github.com/containerd/cgroups/v3/cgroup2/stats  [no test files]

Contribution Guidelines

I have read your guidelines, and I have done my best to comply with them. If there is still something which needs to be done, I'm happy to do so.

[AkihiroSuda]

In this version of ebpf, this extract-vmlinux file was added to the repository, which contains a GPL-2.0-only clause, which is incompatible with our license compliance guidelines.

Just to confirm, this file is just test data and not consumed by containerd, right? If so, "license conflict" doesn't seem to be correct words.

[fuweid]

Sorry, just saw this pull request. I just merged this one https://github.com/containerd/cgroups/pull/315

I think there is no license issue.