intel-device-plugins-for-ku.../pkg/apis/deviceplugin/v1/dlbdeviceplugin_webhook.go
Oleg Zhurakivskyy cfc8eb18cb operator: Support upgrade of plugins
The upgrade of the deployed plugins can be done by simply installing
a new release of the operator.

The operator auto-upgrades operator-managed plugins (CR images
and thus corresponding deployed daemonsets) to the current release
of the operator.

The [registry-url]/[namespace]/[image] are kept intact on the upgrade.

No upgrade is done for:

- Non-operator managed deployments
- Operator deployments without numeric tags

Closes #702

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2022-02-18 12:52:55 +02:00

90 lines
3.2 KiB
Go

// Copyright 2020 Intel Corporation. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package v1
import (
"github.com/pkg/errors"
"k8s.io/apimachinery/pkg/runtime"
ctrl "sigs.k8s.io/controller-runtime"
logf "sigs.k8s.io/controller-runtime/pkg/log"
"sigs.k8s.io/controller-runtime/pkg/webhook"
"github.com/intel/intel-device-plugins-for-kubernetes/pkg/controllers"
)
const (
dlbPluginKind = "DlbDevicePlugin"
)
var (
// dlbdevicepluginlog is for logging in this package.
dlbdevicepluginlog = logf.Log.WithName("dlbdeviceplugin-resource")
dlbMinVersion = controllers.ImageMinVersion
)
// SetupWebhookWithManager sets up a webhook for DlbDevicePlugin custom resources.
func (r *DlbDevicePlugin) SetupWebhookWithManager(mgr ctrl.Manager) error {
return ctrl.NewWebhookManagedBy(mgr).
For(r).
Complete()
}
// +kubebuilder:webhook:path=/mutate-deviceplugin-intel-com-v1-dlbdeviceplugin,mutating=true,failurePolicy=fail,groups=deviceplugin.intel.com,resources=dlbdeviceplugins,verbs=create;update,versions=v1,name=mdlbdeviceplugin.kb.io,sideEffects=None,admissionReviewVersions=v1
var _ webhook.Defaulter = &DlbDevicePlugin{}
// Default implements webhook.Defaulter so a webhook will be registered for the type.
func (r *DlbDevicePlugin) Default() {
dlbdevicepluginlog.Info("default", "name", r.Name)
if len(r.Spec.Image) == 0 {
r.Spec.Image = "intel/intel-dlb-plugin:" + dlbMinVersion.String()
}
}
// +kubebuilder:webhook:verbs=create;update,path=/validate-deviceplugin-intel-com-v1-dlbdeviceplugin,mutating=false,failurePolicy=fail,groups=deviceplugin.intel.com,resources=dlbdeviceplugins,versions=v1,name=vdlbdeviceplugin.kb.io,sideEffects=None,admissionReviewVersions=v1
var _ webhook.Validator = &DlbDevicePlugin{}
// ValidateCreate implements webhook.Validator so a webhook will be registered for the type.
func (r *DlbDevicePlugin) ValidateCreate() error {
dlbdevicepluginlog.Info("validate create", "name", r.Name)
if controllers.GetDevicePluginCount(dlbPluginKind) > 0 {
return errors.Errorf("an instance of %q already exists in the cluster", dlbPluginKind)
}
return r.validatePlugin()
}
// ValidateUpdate implements webhook.Validator so a webhook will be registered for the type.
func (r *DlbDevicePlugin) ValidateUpdate(old runtime.Object) error {
dlbdevicepluginlog.Info("validate update", "name", r.Name)
return r.validatePlugin()
}
// ValidateDelete implements webhook.Validator so a webhook will be registered for the type.
func (r *DlbDevicePlugin) ValidateDelete() error {
dlbdevicepluginlog.Info("validate delete", "name", r.Name)
return nil
}
func (r *DlbDevicePlugin) validatePlugin() error {
return validatePluginImage(r.Spec.Image, "intel-dlb-plugin", dlbMinVersion)
}