DraControllerPlugin

A skeleton k8s DRA controller/plugin project.

Instructions

1. Modify kubelet configuration

    edit /etc/systemd/system/kubelet.service.d/10-kubeadm.conf
   
        Environment="KUBELET_KUBECONFIG_ARGS=--bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.conf --kubeconfig=/etc/kubernetes/kubelet.conf --feature-gates=DynamicResourceAllocation=true"
   
    $ systemctl daemon-reload
    $ systemctl restart kubelet
   

2. Modify kube-apiserver configuration

    edit /etc/kubernetes/manifests/kube-apiserver.yaml
   
        spec:
          containers:
          - command:
            - kube-apiserver
            - --feature-gates=DynamicResourceAllocation=true
            - --runtime-config=resource.k8s.io/v1alpha1
   

3. Modify kube-controller-manager configuration

    edit /etc/kubernetes/manifests/kube-controller-manager.yaml
   
        spec:
          containers:
          - command:
            - kube-controller-manager
            - --feature-gates=DynamicResourceAllocation=true
   

4. Modify kube-scheduler configuration

    edit /etc/kubernetes/manifests/kube-scheduler.yaml
   
        spec:
          containers:
          - command:
            - kube-scheduler
            - --feature-gates=DynamicResourceAllocation=true
   

5. Build and run the DRA controller

    $ cd controller
   
    edit run.sh
   
        KUBECONFIG=
        KUBERNETES_MASTER=
        KUBERNETES_SERVICE_HOST=
        KUBERNETES_SERVICE_PORT=
   
    $ make
    $ ./run.sh
   

6. Build and run the DRA plugin

    $ cd plugin
   
    edit run.sh
   
        KUBECONFIG=
        KUBERNETES_MASTER=
        KUBERNETES_SERVICE_HOST=
        KUBERNETES_SERVICE_PORT=
   
    $ make
    $ ./run.sh
   

7. Create a ResourceClass, ConfigMap, ResourceClaimTemplate and Pod

    $ kubectl apply -f manifest/spec.yaml