107 lines
3.7 KiB
Go
107 lines
3.7 KiB
Go
/*
|
|
* SPDX-FileCopyrightText: Copyright (c) 2025-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* 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 defaulting
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
nvidiacomv1beta1 "github.com/ai-dynamo/dynamo/deploy/operator/api/v1beta1"
|
|
admissionv1 "k8s.io/api/admission/v1"
|
|
"k8s.io/apimachinery/pkg/runtime"
|
|
"sigs.k8s.io/controller-runtime/pkg/log"
|
|
"sigs.k8s.io/controller-runtime/pkg/manager"
|
|
"sigs.k8s.io/controller-runtime/pkg/webhook/admission"
|
|
)
|
|
|
|
const (
|
|
dgdrDefaultingWebhookName = "dynamographdeploymentrequest-defaulting-webhook"
|
|
dgdrDefaultingWebhookPath = "/mutate-nvidia-com-v1beta1-dynamographdeploymentrequest"
|
|
|
|
// defaultImage is the default profiler image used when spec.image is not set.
|
|
// Default image derivation is only supported for public release versions (1.0.0+).
|
|
defaultImage = "nvcr.io/nvidia/ai-dynamo/dynamo-frontend"
|
|
)
|
|
|
|
// DGDRDefaulter is a mutating webhook handler that fills in default values for
|
|
// DynamoGraphDeploymentRequest resources on CREATE.
|
|
//
|
|
// If spec.image is not set, it is derived as:
|
|
//
|
|
// nvcr.io/nvidia/ai-dynamo/dynamo-frontend:<operatorVersion>
|
|
//
|
|
// Defaulting requires a known operator version and is only supported for
|
|
// operator versions 1.0.0 and later.
|
|
type DGDRDefaulter struct {
|
|
OperatorVersion string
|
|
}
|
|
|
|
// NewDGDRDefaulter creates a new DGDRDefaulter with the given operator version.
|
|
func NewDGDRDefaulter(operatorVersion string) *DGDRDefaulter {
|
|
return &DGDRDefaulter{OperatorVersion: operatorVersion}
|
|
}
|
|
|
|
// Default implements admission.CustomDefaulter.
|
|
// Only called on CREATE (the webhook is not registered for UPDATE).
|
|
// If spec.image is not set, derives a default image from the backend and operator version.
|
|
func (d *DGDRDefaulter) Default(ctx context.Context, obj runtime.Object) error {
|
|
logger := log.FromContext(ctx).WithName(dgdrDefaultingWebhookName)
|
|
|
|
dgdr, ok := obj.(*nvidiacomv1beta1.DynamoGraphDeploymentRequest)
|
|
if !ok {
|
|
return fmt.Errorf("expected DynamoGraphDeploymentRequest but got %T", obj)
|
|
}
|
|
|
|
req, err := admission.RequestFromContext(ctx)
|
|
if err != nil {
|
|
logger.Error(err, "failed to get admission request from context, skipping defaulting")
|
|
return nil
|
|
}
|
|
|
|
if req.Operation == admissionv1.Create && dgdr.Spec.Image == "" {
|
|
if img := d.defaultImageFor(); img != "" {
|
|
dgdr.Spec.Image = img
|
|
logger.Info("defaulted spec.image from operator version",
|
|
"name", dgdr.Name,
|
|
"namespace", dgdr.Namespace,
|
|
"image", img,
|
|
)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// defaultImageFor returns the default image, or empty string when the operator version
|
|
// is unknown (e.g. local dev builds), in which case the user must provide spec.image explicitly.
|
|
func (d *DGDRDefaulter) defaultImageFor() string {
|
|
if d.OperatorVersion == "" || d.OperatorVersion == "unknown" {
|
|
return ""
|
|
}
|
|
return fmt.Sprintf("%s:%s", defaultImage, d.OperatorVersion)
|
|
}
|
|
|
|
// RegisterWithManager registers the DGDR defaulting webhook with the manager.
|
|
func (d *DGDRDefaulter) RegisterWithManager(mgr manager.Manager) error {
|
|
webhook := admission.
|
|
WithCustomDefaulter(mgr.GetScheme(), &nvidiacomv1beta1.DynamoGraphDeploymentRequest{}, d).
|
|
WithRecoverPanic(true)
|
|
mgr.GetWebhookServer().Register(dgdrDefaultingWebhookPath, webhook)
|
|
return nil
|
|
}
|