Added CPU pinning to Docker container

pkg/apis/config/v1alpha4/types.go

@@ -118,6 +118,10 @@ type Node struct {
  // binded to a host Port
  ExtraPortMappings []PortMapping `yaml:"extraPortMappings,omitempty"`
 
+ // Limit the specific CPUs or cores a container can use.
+ // A comma-separated list or hyphen-separated range of CPUs a container can use, if you have more than one CPU.
+ CpuSet string `yaml:"cpuSet,omitempty"`
+
  // KubeadmConfigPatches are applied to the generated kubeadm config as
  // merge patches. The `kind` field must match the target object, and
  // if `apiVersion` is specified it will only be applied to matching objects.

pkg/cluster/internal/providers/docker/provision.go

@@ -204,6 +204,7 @@ func commonArgs(cluster string, cfg *config.Cluster, networkName string, nodeNam
 
 func runArgsForNode(node *config.Node, clusterIPFamily config.ClusterIPFamily, name string, args []string) ([]string, error) {
  args = append([]string{
+ "--cpuset-cpus", node.CpuSet,
  "--hostname", name, // make hostname match container name
  // label the node with the role ID
  "--label", fmt.Sprintf("%s=%s", nodeRoleLabelKey, node.Role),

pkg/internal/apis/config/convert_v1alpha4.go

@@ -53,6 +53,7 @@ func convertv1alpha4Node(in *v1alpha4.Node, out *Node) {
 
  out.Labels = in.Labels
  out.KubeadmConfigPatches = in.KubeadmConfigPatches
+ out.CpuSet = in.CpuSet
  out.ExtraMounts = make([]Mount, len(in.ExtraMounts))
  out.ExtraPortMappings = make([]PortMapping, len(in.ExtraPortMappings))
  out.KubeadmConfigPatchesJSON6902 = make([]PatchJSON6902, len(in.KubeadmConfigPatchesJSON6902))

pkg/internal/apis/config/types.go

@@ -104,6 +104,10 @@ type Node struct {
  // This should be an inline yaml blob-string
  KubeadmConfigPatches []string
 
+ // Limit the specific CPUs or cores a container can use.
+ // A comma-separated list or hyphen-separated range of CPUs a container can use, if you have more than one CPU.
+ CpuSet string
+
  // KubeadmConfigPatchesJSON6902 are applied to the generated kubeadm config
  // as patchesJson6902 to `kustomize build`
  KubeadmConfigPatchesJSON6902 []PatchJSON6902