網路原理 綜合上述，由於 kube-proxy 的作用，在 Service 的呼叫過程中用戶端無須關心後端 有幾個 Pod，中間過程的通訊、負載平衡及故障恢復都是透明的，如圖 2.29 所示。 服務路由訊息透過 watch API Server 取得 透過 iptables 的 DNAT 傳送到 kube-proxy 外部 Client 叢集自動分派服務 的 IP 圖 2.29 Service 程式內部的一種資料結構， 2-96 Kubernetes 核心原理 2 目前已經有多個開源元件支援這個網路模型。這裡將介紹幾個常見的模型，分別是 Flannel、Open vSwitch 及直接路由的方式。 1. Flannel Flannel 之所以可以建置 Kubernetes 依賴的底層網路，是因為它能實現以下兩點： (1) 它能協助 Kubernetes，給每一個 Node 上的

Counter-Clockwise Counterclockwise around the HSV/HSL wheel. Near Nearest route around the wheel. Far Furthest route around the wheel. HSV and HSL interpolation options. Active Color Stop Index connect the link to an input socket of another node, then release the LMB. While multiple links can route out of an output socket, only a single link can be attached to an input socket. To reposition the

Counter-Clockwise Counterclockwise around the HSV/HSL wheel. Near Nearest route around the wheel. Far Furthest route around the wheel. HSV and HSL interpolation options. Active Color Stop Index connect the link to an input socket of another node, then release the LMB. While multiple links can route out of an output socket, only a single link can be attached to an input socket. To reposition the

interpolation around the HSV/HSL wheel. Counterclockwise around the HSV/HSL wheel. Nearest route around the wheel. Furthest route around the wheel. HSV and HSL interpolation options. Active Color Stop Index of connect the link to an input socket of another node, then release the LMB. While multiple links can route out of an output socket, only a single link can be attached to an input socket. To reposition the

interpolation around the HSV/HSL wheel. Counterclockwise around the HSV/HSL wheel. Nearest route around the wheel. Furthest route around the wheel. HSV and HSL interpolation options. Active Color Stop Index of connect the link to an input socket of another node, then release the LMB. While multiple links can route out of an output socket, only a single link can be attached to an input socket. To reposition the

interpolation around the HSV/HSL wheel. Counterclockwise around the HSV/HSL wheel. Nearest route around the wheel. Furthest route around the wheel. HSV and HSL interpolation options. Active Color Stop Index of connect the link to an input socket of another node, then release the LMB. While multiple links can route out of an output socket, only a single link can be attached to an input socket. To reposition the

interpolation around the HSV/HSL wheel. Counterclockwise around the HSV/HSL wheel. Nearest route around the wheel. Furthest route around the wheel. HSV and HSL interpolation options. Active Color Stop Index of connect the link to an input socket of another node, then release the LMB. While multiple links can route out of an output socket, only a single link can be attached to an input socket. To reposition the

interpolation around the HSV/HSL wheel. Counterclockwise around the HSV/HSL wheel. Nearest route around the wheel. Furthest route around the wheel. HSV and HSL interpolation options. Active Color Stop Index of connect the link to an input socket of another node, then release the LMB. While multiple links can route out of an output socket, only a single link can be attached to an input socket. To reposition the

Counter-Clockwise: Counterclockwise around the HSV/HSL wheel. Near: Nearest route around the wheel. Far: Furthest route around the wheel. HSV and HSL interpolation options. Active Color Stop Index connect the link to an input socket of another node, then release the LMB. While multiple links can route out of an output socket, typically a single link can be attached to an input socket, that is unless

interpolation around the HSV/HSL wheel. Counterclockwise around the HSV/HSL wheel. Nearest route around the wheel. Furthest route around the wheel. HSV and HSL interpolation options. Active Color Stop Index of connect the link to an input socket of another node, then release the LMB. While multiple links can route out of an output socket, typically a single link can be attached to an input socket, that is unless