mirror of
https://github.com/intel/intel-device-plugins-for-kubernetes.git
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e4c4a8f7ac
1. Implement PreferredAllocator interface. 2. Provide 3 preferred allocation policies: balancedPolicy, packedPolicy and nonePolicy. 3. Provide the cmdline interface: -allocation-policy balanced/packed/none, to select which preferred allocation policy to use. 4. Add operator support. Co-authored-by: Mikko Ylinen <mikko.ylinen@intel.com>
101 lines
3.6 KiB
Go
101 lines
3.6 KiB
Go
// Copyright 2020 Intel Corporation. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package v1
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import (
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"github.com/pkg/errors"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/util/version"
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ctrl "sigs.k8s.io/controller-runtime"
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logf "sigs.k8s.io/controller-runtime/pkg/log"
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"sigs.k8s.io/controller-runtime/pkg/webhook"
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"github.com/intel/intel-device-plugins-for-kubernetes/pkg/controllers"
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)
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const (
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gpuPluginKind = "GpuDevicePlugin"
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)
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var (
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// gpudevicepluginlog is for logging in this package.
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gpudevicepluginlog = logf.Log.WithName("gpudeviceplugin-resource")
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gpuMinVersion = version.MustParseSemantic(imageMinVersion)
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)
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// SetupWebhookWithManager sets up a webhook for GpuDevicePlugin custom resources.
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func (r *GpuDevicePlugin) SetupWebhookWithManager(mgr ctrl.Manager) error {
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return ctrl.NewWebhookManagedBy(mgr).
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For(r).
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Complete()
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}
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// +kubebuilder:webhook:path=/mutate-deviceplugin-intel-com-v1-gpudeviceplugin,mutating=true,failurePolicy=fail,groups=deviceplugin.intel.com,resources=gpudeviceplugins,verbs=create;update,versions=v1,name=mgpudeviceplugin.kb.io,sideEffects=None,admissionReviewVersions=v1
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var _ webhook.Defaulter = &GpuDevicePlugin{}
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// Default implements webhook.Defaulter so a webhook will be registered for the type.
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func (r *GpuDevicePlugin) Default() {
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gpudevicepluginlog.Info("default", "name", r.Name)
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if len(r.Spec.Image) == 0 {
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r.Spec.Image = "intel/intel-gpu-plugin:" + gpuMinVersion.String()
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}
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}
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// +kubebuilder:webhook:verbs=create;update,path=/validate-deviceplugin-intel-com-v1-gpudeviceplugin,mutating=false,failurePolicy=fail,groups=deviceplugin.intel.com,resources=gpudeviceplugins,versions=v1,name=vgpudeviceplugin.kb.io,sideEffects=None,admissionReviewVersions=v1
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var _ webhook.Validator = &GpuDevicePlugin{}
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// ValidateCreate implements webhook.Validator so a webhook will be registered for the type.
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func (r *GpuDevicePlugin) ValidateCreate() error {
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gpudevicepluginlog.Info("validate create", "name", r.Name)
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if controllers.GetDevicePluginCount(gpuPluginKind) > 0 {
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return errors.Errorf("an instance of %q already exists in the cluster", gpuPluginKind)
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}
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return r.validatePlugin()
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}
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// ValidateUpdate implements webhook.Validator so a webhook will be registered for the type.
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func (r *GpuDevicePlugin) ValidateUpdate(old runtime.Object) error {
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gpudevicepluginlog.Info("validate update", "name", r.Name)
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return r.validatePlugin()
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}
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// ValidateDelete implements webhook.Validator so a webhook will be registered for the type.
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func (r *GpuDevicePlugin) ValidateDelete() error {
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gpudevicepluginlog.Info("validate delete", "name", r.Name)
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return nil
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}
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func (r *GpuDevicePlugin) validatePlugin() error {
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if r.Spec.InitImage != "" {
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if err := validatePluginImage(r.Spec.InitImage, "intel-gpu-initcontainer", gpuMinVersion); err != nil {
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return err
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}
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}
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if r.Spec.SharedDevNum == 1 && r.Spec.PreferredAllocationPolicy != "none" {
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return errors.Errorf("PreferredAllocationPolicy is valid only when setting sharedDevNum > 1")
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}
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return validatePluginImage(r.Spec.Image, "intel-gpu-plugin", gpuMinVersion)
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}
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