dynamo/deploy/operator/internal/webhook/validation/dynamographdeploymentreques...

410 lines
13 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 validation
import (
"strings"
"testing"
nvidiacomv1alpha1 "github.com/ai-dynamo/dynamo/deploy/operator/api/v1alpha1"
apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
func TestDynamoGraphDeploymentRequestValidator_Validate(t *testing.T) {
validConfig := `{"engine": {"backend": "vllm"}, "deployment": {"model": "test-model"}}`
configWithDifferentBackend := `{"engine": {"backend": "sglang"}}`
configWithDifferentModel := `{"deployment": {"model": "different-model"}}`
invalidYAML := `{invalid yaml`
tests := []struct {
name string
request *nvidiacomv1alpha1.DynamoGraphDeploymentRequest
isClusterWide bool
wantErr bool
errMsg string
wantWarnings bool
expectedWarning string
errContains bool
}{
{
name: "valid request",
request: &nvidiacomv1alpha1.DynamoGraphDeploymentRequest{
ObjectMeta: metav1.ObjectMeta{
Name: "test-dgdr",
Namespace: "default",
},
Spec: nvidiacomv1alpha1.DynamoGraphDeploymentRequestSpec{
Model: "llama-3-8b",
Backend: "vllm",
ProfilingConfig: nvidiacomv1alpha1.ProfilingConfigSpec{
ProfilerImage: "profiler:latest",
Config: &apiextensionsv1.JSON{
Raw: []byte(validConfig),
},
},
},
},
isClusterWide: true,
wantErr: false,
},
{
name: "missing profiler image",
request: &nvidiacomv1alpha1.DynamoGraphDeploymentRequest{
ObjectMeta: metav1.ObjectMeta{
Name: "test-dgdr",
Namespace: "default",
},
Spec: nvidiacomv1alpha1.DynamoGraphDeploymentRequestSpec{
Model: "llama-3-8b",
Backend: "vllm",
ProfilingConfig: nvidiacomv1alpha1.ProfilingConfigSpec{
ProfilerImage: "",
Config: &apiextensionsv1.JSON{
Raw: []byte(validConfig),
},
},
},
},
isClusterWide: true,
wantErr: true,
errMsg: "spec.profilingConfig.profilerImage is required",
},
{
name: "missing profiling config",
request: &nvidiacomv1alpha1.DynamoGraphDeploymentRequest{
ObjectMeta: metav1.ObjectMeta{
Name: "test-dgdr",
Namespace: "default",
},
Spec: nvidiacomv1alpha1.DynamoGraphDeploymentRequestSpec{
Model: "llama-3-8b",
Backend: "vllm",
ProfilingConfig: nvidiacomv1alpha1.ProfilingConfigSpec{
ProfilerImage: "profiler:latest",
Config: nil,
},
},
},
isClusterWide: true,
wantErr: true,
errMsg: "spec.profilingConfig.config is required and must not be empty",
},
{
name: "empty profiling config",
request: &nvidiacomv1alpha1.DynamoGraphDeploymentRequest{
ObjectMeta: metav1.ObjectMeta{
Name: "test-dgdr",
Namespace: "default",
},
Spec: nvidiacomv1alpha1.DynamoGraphDeploymentRequestSpec{
Model: "llama-3-8b",
Backend: "vllm",
ProfilingConfig: nvidiacomv1alpha1.ProfilingConfigSpec{
ProfilerImage: "profiler:latest",
Config: &apiextensionsv1.JSON{
Raw: []byte{},
},
},
},
},
isClusterWide: true,
wantErr: true,
errMsg: "spec.profilingConfig.config is required and must not be empty",
},
{
name: "enableGpuDiscovery true for cluster-wide operator",
request: &nvidiacomv1alpha1.DynamoGraphDeploymentRequest{
ObjectMeta: metav1.ObjectMeta{
Name: "test-dgdr",
Namespace: "default",
},
Spec: nvidiacomv1alpha1.DynamoGraphDeploymentRequestSpec{
Model: "llama-3-8b",
Backend: "vllm",
EnableGpuDiscovery: true,
ProfilingConfig: nvidiacomv1alpha1.ProfilingConfigSpec{
ProfilerImage: "profiler:latest",
Config: &apiextensionsv1.JSON{
Raw: []byte(validConfig),
},
},
},
},
isClusterWide: true,
wantErr: false,
},
{
name: "enableGpuDiscovery true for namespace-restricted operator",
request: &nvidiacomv1alpha1.DynamoGraphDeploymentRequest{
ObjectMeta: metav1.ObjectMeta{
Name: "test-dgdr",
Namespace: "default",
},
Spec: nvidiacomv1alpha1.DynamoGraphDeploymentRequestSpec{
Model: "llama-3-8b",
Backend: "vllm",
EnableGpuDiscovery: true,
ProfilingConfig: nvidiacomv1alpha1.ProfilingConfigSpec{
ProfilerImage: "profiler:latest",
Config: &apiextensionsv1.JSON{
Raw: []byte(validConfig),
},
},
},
},
isClusterWide: false,
wantErr: true,
errMsg: "spec.enableGpuDiscovery can only be set to true for cluster-wide operators. Namespace-restricted operators cannot access cluster nodes for GPU discovery. Please set enableGpuDiscovery to false and provide hardware configuration (hardware.min_num_gpus_per_engine, hardware.max_num_gpus_per_engine, hardware.num_gpus_per_node) in spec.profilingConfig.config",
},
{
name: "enableGpuDiscovery false for namespace-restricted operator",
request: &nvidiacomv1alpha1.DynamoGraphDeploymentRequest{
ObjectMeta: metav1.ObjectMeta{
Name: "test-dgdr",
Namespace: "default",
},
Spec: nvidiacomv1alpha1.DynamoGraphDeploymentRequestSpec{
Model: "llama-3-8b",
Backend: "vllm",
EnableGpuDiscovery: false,
ProfilingConfig: nvidiacomv1alpha1.ProfilingConfigSpec{
ProfilerImage: "profiler:latest",
Config: &apiextensionsv1.JSON{
Raw: []byte(validConfig),
},
},
},
},
isClusterWide: false,
wantErr: false,
},
{
name: "invalid config YAML",
request: &nvidiacomv1alpha1.DynamoGraphDeploymentRequest{
ObjectMeta: metav1.ObjectMeta{
Name: "test-dgdr",
Namespace: "default",
},
Spec: nvidiacomv1alpha1.DynamoGraphDeploymentRequestSpec{
Model: "llama-3-8b",
Backend: "vllm",
ProfilingConfig: nvidiacomv1alpha1.ProfilingConfigSpec{
ProfilerImage: "profiler:latest",
Config: &apiextensionsv1.JSON{
Raw: []byte(invalidYAML),
},
},
},
},
isClusterWide: true,
wantErr: true,
errMsg: "failed to parse spec.profilingConfig.config: error converting YAML to JSON: yaml: line 1: did not find expected ',' or '}'",
},
{
name: "warning for different backend in config",
request: &nvidiacomv1alpha1.DynamoGraphDeploymentRequest{
ObjectMeta: metav1.ObjectMeta{
Name: "test-dgdr",
Namespace: "default",
},
Spec: nvidiacomv1alpha1.DynamoGraphDeploymentRequestSpec{
Model: "llama-3-8b",
Backend: "vllm",
ProfilingConfig: nvidiacomv1alpha1.ProfilingConfigSpec{
ProfilerImage: "profiler:latest",
Config: &apiextensionsv1.JSON{
Raw: []byte(configWithDifferentBackend),
},
},
},
},
isClusterWide: true,
wantErr: false,
wantWarnings: true,
expectedWarning: "spec.profilingConfig.config.engine.backend (sglang) will be overwritten by spec.backend (vllm)",
},
{
name: "warning for different model in config",
request: &nvidiacomv1alpha1.DynamoGraphDeploymentRequest{
ObjectMeta: metav1.ObjectMeta{
Name: "test-dgdr",
Namespace: "default",
},
Spec: nvidiacomv1alpha1.DynamoGraphDeploymentRequestSpec{
Model: "llama-3-8b",
Backend: "vllm",
ProfilingConfig: nvidiacomv1alpha1.ProfilingConfigSpec{
ProfilerImage: "profiler:latest",
Config: &apiextensionsv1.JSON{
Raw: []byte(configWithDifferentModel),
},
},
},
},
isClusterWide: true,
wantErr: false,
wantWarnings: true,
expectedWarning: "spec.profilingConfig.config.deployment.model (different-model) will be overwritten by spec.model (llama-3-8b)",
},
{
name: "multiple errors (missing profiler image, missing config, and enableGpuDiscovery for namespace-restricted)",
request: &nvidiacomv1alpha1.DynamoGraphDeploymentRequest{
ObjectMeta: metav1.ObjectMeta{
Name: "test-dgdr",
Namespace: "default",
},
Spec: nvidiacomv1alpha1.DynamoGraphDeploymentRequestSpec{
Model: "llama-3-8b",
Backend: "vllm",
EnableGpuDiscovery: true,
ProfilingConfig: nvidiacomv1alpha1.ProfilingConfigSpec{
ProfilerImage: "",
Config: nil,
},
},
},
isClusterWide: false,
wantErr: true,
errMsg: "spec.profilingConfig.profilerImage is required\nspec.profilingConfig.config is required and must not be empty\nspec.enableGpuDiscovery can only be set to true for cluster-wide operators",
errContains: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
validator := NewDynamoGraphDeploymentRequestValidator(tt.request, tt.isClusterWide)
warnings, err := validator.Validate()
if (err != nil) != tt.wantErr {
t.Errorf("DynamoGraphDeploymentRequestValidator.Validate() error = %v, wantErr %v", err, tt.wantErr)
return
}
if tt.wantErr {
if tt.errContains {
// For multiple errors, check that all expected error messages are present
errStr := err.Error()
for _, expectedMsg := range strings.Split(tt.errMsg, "\n") {
if !strings.Contains(errStr, expectedMsg) {
t.Errorf("DynamoGraphDeploymentRequestValidator.Validate() error message = %v, want to contain %v", errStr, expectedMsg)
}
}
} else {
if err.Error() != tt.errMsg {
t.Errorf("DynamoGraphDeploymentRequestValidator.Validate() error message = %v, want %v", err.Error(), tt.errMsg)
}
}
}
if tt.wantWarnings && len(warnings) == 0 {
t.Errorf("DynamoGraphDeploymentRequestValidator.Validate() expected warnings but got none")
}
if tt.wantWarnings && len(warnings) > 0 && warnings[0] != tt.expectedWarning {
t.Errorf("DynamoGraphDeploymentRequestValidator.Validate() warning = %v, want %v", warnings[0], tt.expectedWarning)
}
})
}
}
func TestDynamoGraphDeploymentRequestValidator_ValidateUpdate(t *testing.T) {
validConfig := `{"engine": {"backend": "vllm"}}`
tests := []struct {
name string
oldRequest *nvidiacomv1alpha1.DynamoGraphDeploymentRequest
newRequest *nvidiacomv1alpha1.DynamoGraphDeploymentRequest
wantErr bool
wantWarnings bool
}{
{
name: "no changes",
oldRequest: &nvidiacomv1alpha1.DynamoGraphDeploymentRequest{
Spec: nvidiacomv1alpha1.DynamoGraphDeploymentRequestSpec{
Model: "llama-3-8b",
Backend: "vllm",
ProfilingConfig: nvidiacomv1alpha1.ProfilingConfigSpec{
ProfilerImage: "profiler:latest",
Config: &apiextensionsv1.JSON{
Raw: []byte(validConfig),
},
},
},
},
newRequest: &nvidiacomv1alpha1.DynamoGraphDeploymentRequest{
Spec: nvidiacomv1alpha1.DynamoGraphDeploymentRequestSpec{
Model: "llama-3-8b",
Backend: "vllm",
ProfilingConfig: nvidiacomv1alpha1.ProfilingConfigSpec{
ProfilerImage: "profiler:latest",
Config: &apiextensionsv1.JSON{
Raw: []byte(validConfig),
},
},
},
},
wantErr: false,
},
{
name: "changing model name is allowed",
oldRequest: &nvidiacomv1alpha1.DynamoGraphDeploymentRequest{
Spec: nvidiacomv1alpha1.DynamoGraphDeploymentRequestSpec{
Model: "llama-3-8b",
Backend: "vllm",
ProfilingConfig: nvidiacomv1alpha1.ProfilingConfigSpec{
ProfilerImage: "profiler:latest",
Config: &apiextensionsv1.JSON{
Raw: []byte(validConfig),
},
},
},
},
newRequest: &nvidiacomv1alpha1.DynamoGraphDeploymentRequest{
Spec: nvidiacomv1alpha1.DynamoGraphDeploymentRequestSpec{
Model: "llama-3-70b",
Backend: "vllm",
ProfilingConfig: nvidiacomv1alpha1.ProfilingConfigSpec{
ProfilerImage: "profiler:latest",
Config: &apiextensionsv1.JSON{
Raw: []byte(validConfig),
},
},
},
},
wantErr: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
validator := NewDynamoGraphDeploymentRequestValidator(tt.newRequest, true)
warnings, err := validator.ValidateUpdate(tt.oldRequest)
if (err != nil) != tt.wantErr {
t.Errorf("DynamoGraphDeploymentRequestValidator.ValidateUpdate() error = %v, wantErr %v", err, tt.wantErr)
return
}
if tt.wantWarnings && len(warnings) == 0 {
t.Errorf("DynamoGraphDeploymentRequestValidator.ValidateUpdate() expected warnings but got none")
}
})
}
}