scheduler-extender.md

安装 LocalStorage Scheduler 扩展

LocalStorage-scheduler

• 生成 ls-scheduler.conf, 并拷贝到 /etc/kubernetes 目录

  # 生成 pixiu-ls-scheduler.conf
  
  # 修改 hack/build-lsconfig.sh 的 API_SERVER 为实际地址，然后执行
  ./hack/build-lsconfig.sh

• 拷贝 deploy/ls-scheduler.yaml 到 /etc/kubernetes/manifests 目录

• 验证

  # kubectl  get pod -n kube-system pixiu-ls-scheduler-pixiu01
  NAME                         READY   STATUS    RESTARTS       AGE
  pixiu-ls-scheduler-pixiu01   1/1     Running   15 (81s ago)   2d1h
  
  root@pixiu01:~# kubectl get svc -n kube-system  pixiu-ls-scheduler
  NAME                 TYPE       CLUSTER-IP       EXTERNAL-IP   PORT(S)          AGE
  pixiu-ls-scheduler   NodePort   10.254.245.253   <none>        8090:30666/TCP   2d1h
  
  # 服务已启动（建议使用 LB）
  curl 10.254.245.253:8090/version
  v1.0.1

Kube-scheduler

• 修改 deploy/ls-scheduler-config.yaml 的 urlPrefix 为实际 pixiu-ls-scheduler 地址， 并拷贝到 /etc/kubernetes 目录

• 修改 kube-scheduler 默认调度配置文件，添加 pixiu-scheduler-extender 关联配置

  - command:
      - kube-scheduler
      ...
      - --config=/etc/kubernetes/ls-scheduler-config.yaml
    ...
    volumeMounts:
      - mountPath: /etc/kubernetes/scheduler.conf
        name: kubeconfig
        readOnly: true
      - mountPath: /etc/kubernetes/ls-scheduler-config.yaml
        name: ls-scheduler-config
        readOnly: true
  ...
  volumes:
    - hostPath:
        path: /etc/kubernetes/scheduler.conf
        type: FileOrCreate
      name: kubeconfig
    - hostPath:
        path: /etc/kubernetes/ls-scheduler-config.yaml
        type: FileOrCreate
      name: ls-scheduler-config