Kubernetes nodes

https://kubernetes.io/docs/concepts/architecture/nodes/

Kubernetrsはノード上のKubernetes podsへコンテナを配置することでKubernete Workloadsをを起動する。ノードはKubernetes Clusterに依存して仮装または物理マシン。各ノードはコントロールプレーンによって管理され、ポッド実行に必要なサービスを保持する

Kubernetes runs your workload by placing containers into Pods to run on Nodes. A node may be a virtual or physical machine, depending on the cluster. Each node is managed by the control plane and contains the services necessary to run Pods.

Management

ノード上のkubeletがcontrol planeへ自己登録する

Nodeオブジェクトを手動で追加する

There are two main ways to have Nodes added to the API server:

The kubelet on a node self-registers to the control plane

You (or another human user) manually add a Node object

Self-registration of Nodes

kubelet flagがtrueののき、kubeletら自身をkube-apiserverへ登録する。

When the kubelet flag --register-node is true (the default), the kubelet will attempt to register itself with the API server. This is the preferred pattern, used by most distros.

For self-registration, the kubelet is started with the following options: