印花布操作员认证 建立 实验室 We will be creating 4 VMs (3 Kubernetes nodes and 1 standalone host) each with predefined static IP addresses: Control (198.19.0.1) - Kubernetes control-plane node Node1 (198.19.0.2) - Kubernetes worker node Node2 (198.19.0.3) - Kubernetes worker node Host1 (198.19.15.254) - General