Copy ParseCgroupFileUnified and Drop rest of containerd/cgroups

[dims]

Related to discussion in #128157 - Let's ensure we use ONLY one cgroups library.

Here in this PR we can keep a temporary copy until we get a longer term solution in runc's cgroup library, see opencontainers/runc#4497

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?

NONE

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

[k8s-ci-robot]

This issue is currently awaiting triage.

If a SIG or subproject determines this is a relevant issue, they will accept it by applying the triage/accepted label and provide further guidance.

The triage/accepted label can be added by org members by writing /triage accepted in a comment.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[dims]

copied the entire file, so keeping their copyright

[dims]

copied just a couple of methods into a new file, so just adding ours.

[dims]

/assign @SergeyKanzhelev @mrunalp @tzneal

[dims]

/priority important-soon

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dims

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [dims]
• LICENSES/OWNERS [dims]
• hack/OWNERS [dims]
• pkg/kubelet/OWNERS [dims]
• third_party/OWNERS [dims]
• vendor/OWNERS [dims]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[haircommander]

/lgtm
/hold

thanks for picking this up! holding to let CI run and anyone else chime in

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 1058bfa345839bb50750c2a67c87f7c8643b7116

[dims]

Weird that i can't repro the failure locally. could it be a mac vs linux issue? digging deeper

+++ working dir: /home/prow/go/src/k8s.io/kubernetes
+++ command: bash "hack/verify-testing-import.sh"
Testing package imported in:
	/home/prow/go/src/k8s.io/kubernetes/cmd/kubelet
+++ exit code: 1
+++ error: 1

[dims]

could it be a mac vs linux issue? digging deeper

yep. i see the failure on linux... will think about how to do this better in my long TODO later :)

for now, i had the wrong file name for the tests!

[dims]

/retest

[haircommander]

/lgtm
/unhold

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 220f90d1a75692e105b1c8074b24e4f97499d120