kubernetes 1.12.1版本

Desc

      The Kubernetes scheduler is a policy-rich, topology-aware, workload-specific function that significantly impacts availability, performance, and capacity. The scheduler needs to take into account individual and collective resource requirements, quality of service requirements, hardware/software/policy constraints, affinity and anti-affinity specifications, data locality, inter-workload interference, deadlines, and so on. Workload-specific requirements will be exposed through the API as necessary.

      kube-scheduler通過排程演算法為待排程Pod列表上的每一個Pod從Node列表中選擇一個最合適的Node。

       kube-scheduler當前提供的預設排程流程分為兩步

• 預選排程過程：遍歷所有目標Node，篩選出符合要求的候選節點
• 確定最優節點：在第一步的基礎上，採用優選策略計算出每個候選節點的分數，分數最高者勝出

/opt/k8s/bin/kube-scheduler --address=0.0.0.0 --master=http://127.0.0.1:8080 --leader-elect=true --v=2

kube-scheduler啟動引數詳解

Usage:
  kube-scheduler [flags]