//  2. "kubernetes.io/kube-apiserver-client-kubelet": issues client certificates that kubelets use to authenticate to kube-apiserver.
  //   Requests for this signer can be auto-approved by the "csrapproving" controller in kube-controller-manager, and can be issued by the "csrsigning" controller in kube-controller-manager.

// they use the node-driver-registrar sidecar container, the kubelet will
// automatically populate the CSINode object for the CSI driver as part of
// kubelet plugin registration.
// CSINode has the same name as a node. If the object is missing, it means either
// there are no CSI Drivers available on the node, or the Kubelet version is low
// enough that it doesn't create this object.

  // Setting this field is optional. It has a maximum size of 32 entries.
  // If null (or empty), it is assumed this allocation will be processed by a
  // single kubelet plugin with no ResourceHandle data attached. The name of
  // the kubelet plugin invoked will match the DriverName set in the
  // ResourceClaimStatus this AllocationResult is embedded in.
  //
  // +listType=atomic
  // +optional
  repeated ResourceHandle resourceHandles = 1;

* kubelet: add RSS memory to the summary API ([#24015](https://github.com/kubernetes/kubernetes/pull/24015), [@yujuhong](https://github.com/yujuhong))
* e2e: adapt kubelet_perf.go to use the new summary metrics API ([#24003](https://github.com/kubernetes/kubernetes/pull/24003), [@yujuhong](https://github.com/yujuhong))

#### From a specific node syslog

The CNI plugins are executed by threads in the `kubelet` process.  The CNI plugins logs end up the syslog
under the `kubelet` process. On systems with `journalctl` the following is an example command line
to view the last 1000 `kubelet` logs via the `less` utility to allow for `vi`-style searching:

```console
$ journalctl -t kubelet -n 1000 | less
```

#### GKE via Stackdriver Log Viewer

// they use the node-driver-registrar sidecar container, the kubelet will
// automatically populate the CSINode object for the CSI driver as part of
// kubelet plugin registration.
// CSINode has the same name as a node. If the object is missing, it means either
// there are no CSI Drivers available on the node, or the Kubelet version is low
// enough that it doesn't create this object.

	}

	installLog.Infof("CNI config file %s exists. Proceeding.", cniConfigFilepath)

	return cniConfigFilepath, err
}

// Follows the same semantics as kubelet
// https://github.com/kubernetes/kubernetes/blob/954996e231074dc7429f7be1256a579bedd8344c/pkg/kubelet/dockershim/network/cni/cni.go#L144-L184
func getDefaultCNINetwork(confDir string) (string, error) {
	files, err := libcni.ConfFiles(confDir, []string{".conf", ".conflist"})

func IsKubernetes() bool {
	// Kubernetes env used to validate if we are
	// indeed running inside a kubernetes pod
	// is KUBERNETES_SERVICE_HOST
	// https://github.com/kubernetes/kubernetes/blob/master/pkg/kubelet/kubelet_pods.go#L541
	return env.Get("KUBERNETES_SERVICE_HOST", "") != ""
}

// IsBOSH returns true if minio is deployed from a bosh package
func IsBOSH() bool {
	// "/var/vcap/bosh" exists in BOSH deployed instance.

	// the healthcheck packet to a fixed IP if the packet is coming from a node-local process with a socket.
	//
	// We do this so we can exempt this traffic from ztunnel capture/proxy - otherwise both kube-proxy (legit)
	// and kubelet (skippable) traffic would have the same srcip once they got to the pod, and would be indistinguishable.
	//
	// Note that SortedList is used here because the istio sets class has no order guarantees,

  // Each entry is either a plain sysctl name or ends in "*" in which case it is considered
  // as a prefix of allowed sysctls. Single * means all unsafe sysctls are allowed.
  // Kubelet has to allowlist all allowed unsafe sysctls explicitly to avoid rejection.
  //
  // Examples:
  // e.g. "foo/*" allows "foo/bar", "foo/baz", etc.
  // e.g. "foo.*" allows "foo.bar", "foo.baz", etc.
  // +optional