Add GPUCluster CRD and controller for DRA-based stack

PROJECT

@@ -23,4 +23,12 @@ resources:
   kind: NVIDIADriver
   path: github.com/NVIDIA/gpu-operator/api/v1alpha1
   version: v1alpha1
+- api:
+    crdVersion: v1
+  controller: true
+  domain: com
+  group: nvidia
+  kind: GPUCluster
+  path: github.com/NVIDIA/gpu-operator/api/v1alpha1
+  version: v1alpha1
 version: "3"

api/nvidia/v1alpha1/gpucluster_types.go

@@ -0,0 +1,181 @@
+/**
+# Copyright (c) NVIDIA 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 v1alpha1
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+
+	nvidiav1 "github.com/NVIDIA/gpu-operator/api/nvidia/v1"
+)
+
+const (
+	GPUClusterCRDName = "GPUCluster"
+)
+
+const (
+	// Ignored marks a duplicate GPUCluster that the singleton controller does not reconcile.
+	Ignored State = "ignored"
+)
+
+// NOTE: json tags are required.  Any new fields you add must have json tags for the fields to be serialized.
+
+// GPUClusterSpec defines the desired state of GPUCluster, the DRA-based
+// software-enablement stack. Unlike ClusterPolicy, it does not manage the NVIDIA driver
+// or the device-plugin; the driver is installed separately (host-installed or via an
+// NVIDIADriver CR) and GPUCluster waits for driver readiness before proceeding.
+type GPUClusterSpec struct {
+	// DRADriver defines the spec for the NVIDIA DRA driver stack (gpus + computeDomains).
+	DRADriver DRADriverSpec `json:"draDriver"`
+
+	// DCGM defines the spec for the standalone NVIDIA DCGM hostengine. Disabled by default;
+	// when disabled, dcgm-exporter uses its embedded nv-hostengine. NOTE: the reused enabled
+	// field carries no server-side default and its IsEnabled() treats nil as enabled, so the
+	// controller must default nil enabled to disabled here.
+	DCGM *nvidiav1.DCGMSpec `json:"dcgm,omitempty"`
+
+	// DCGMExporter defines the spec for NVIDIA DCGM Exporter. Enabled by default, but the
+	// reused enabled field carries no server-side default; the controller defaults nil enabled.
+	DCGMExporter *nvidiav1.DCGMExporterSpec `json:"dcgmExporter,omitempty"`
+
+	// HostPaths defines the host paths used in host-path volumes for various components.
+	HostPaths nvidiav1.HostPathsSpec `json:"hostPaths,omitempty"`
+
+	// Daemonsets defines the common configuration applied to all DaemonSets deployed
+	// by the GPUCluster controller.
+	Daemonsets nvidiav1.DaemonsetsSpec `json:"daemonsets,omitempty"`
+}
+
+// DRADriverSpec defines the spec for the NVIDIA DRA driver stack. There is no top-level
+// enabled toggle; the gpus capability is always deployed and computeDomains has its own
+// enabled field.
+type DRADriverSpec struct {
+	// NVIDIA DRA driver image repository
+	Repository string `json:"repository,omitempty"`
+
+	// NVIDIA DRA driver image name
+	// +kubebuilder:validation:Pattern=^[a-zA-Z0-9\-]+$
+	Image string `json:"image,omitempty"`
+
+	// NVIDIA DRA driver image tag
+	Version string `json:"version,omitempty"`
+
+	// Image pull policy
+	ImagePullPolicy string `json:"imagePullPolicy,omitempty"`
+
+	// Image pull secrets
+	ImagePullSecrets []string `json:"imagePullSecrets,omitempty"`
+
+	// FeatureGates is a map of feature gate names to a boolean enabling or disabling each.
+	// It is rendered as the FEATURE_GATES environment variable on the DRA driver containers.
+	FeatureGates map[string]bool `json:"featureGates,omitempty"`
+
+	// GPUs configures the gpu.nvidia.com capability of the DRA driver.
+	GPUs DRADriverGPUsSpec `json:"gpus,omitempty"`
+
+	// ComputeDomains configures the compute-domain capability of the DRA driver.
+	ComputeDomains DRADriverComputeDomainsSpec `json:"computeDomains,omitempty"`
+}
+
+// IsComputeDomainsEnabled returns true if the computeDomains capability of the DRA driver is enabled.
+func (d *DRADriverSpec) IsComputeDomainsEnabled() bool {
+	return d.ComputeDomains.Enabled != nil && *d.ComputeDomains.Enabled
+}
+
+// DRADriverGPUsSpec configures the gpus capability of the DRA driver. It maps onto the
+// gpus container of the upstream kubelet-plugin DaemonSet. The capability is always
+// deployed; there is no enabled toggle.
+type DRADriverGPUsSpec struct {
+	// KubeletPlugin configures the kubelet-plugin workload for the gpus capability.
+	KubeletPlugin DRADriverKubeletPluginSpec `json:"kubeletPlugin,omitempty"`
+}
+
+// DRADriverComputeDomainsSpec configures the computeDomains capability of the DRA driver.
+// The kubeletPlugin maps onto the computeDomains container of the upstream kubelet-plugin
+// DaemonSet; the controller is a separate Deployment.
+type DRADriverComputeDomainsSpec struct {
+	// Enabled indicates if the computeDomains capability of the DRA driver is enabled.
+	// +kubebuilder:default=true
+	Enabled *bool `json:"enabled,omitempty"`
+
+	// Controller configures the compute-domain controller Deployment.
+	Controller DRADriverControllerSpec `json:"controller,omitempty"`
+
+	// KubeletPlugin configures the kubelet-plugin workload for the computeDomains capability.
+	KubeletPlugin DRADriverKubeletPluginSpec `json:"kubeletPlugin,omitempty"`
+}
+
+// DRADriverKubeletPluginSpec configures a DRA driver kubelet-plugin container. The gpus and
+// computeDomains blocks map onto the two containers of a single kubelet-plugin DaemonSet.
+// Scheduling is opinionated and not configurable here.
+type DRADriverKubeletPluginSpec struct {
+	// Optional: List of environment variables
+	Env []nvidiav1.EnvVar `json:"env,omitempty"`
+
+	// Optional: Define resources requests and limits for the kubelet-plugin container
+	Resources *nvidiav1.ResourceRequirements `json:"resources,omitempty"`
+
+	// HealthcheckPort is the port of the container's gRPC health service, checked by the
+	// startup and liveness probes. Set to a negative value to disable the probes.
+	HealthcheckPort *int32 `json:"healthcheckPort,omitempty"`
+}
+
+// DRADriverControllerSpec defines configuration for the compute-domain controller Deployment.
+// Scheduling is opinionated and not configurable here.
+type DRADriverControllerSpec struct {
+	// Optional: List of environment variables
+	Env []nvidiav1.EnvVar `json:"env,omitempty"`
+
+	// Optional: Define resources requests and limits for the controller container
+	Resources *nvidiav1.ResourceRequirements `json:"resources,omitempty"`
+}
+
+// GPUClusterStatus defines the observed state of GPUCluster
+type GPUClusterStatus struct {
+	// +kubebuilder:validation:Enum=ignored;ready;notReady;disabled
+	// State indicates the status of the GPUCluster instance
+	State State `json:"state"`
+	// Namespace indicates the namespace in which the operator and operands are installed
+	Namespace string `json:"namespace,omitempty"`
+	// Conditions is a list of conditions representing the GPUCluster's current state.
+	Conditions []metav1.Condition `json:"conditions,omitempty"`
+}
+
+// +genclient
+// +genclient:nonNamespaced
+//+kubebuilder:object:root=true
+//+kubebuilder:subresource:status
+//+kubebuilder:resource:scope=Cluster,shortName={"gc"}
+//+kubebuilder:printcolumn:name="Status",type=string,JSONPath=`.status.state`,priority=0
+//+kubebuilder:printcolumn:name="Age",type=date,JSONPath=`.metadata.creationTimestamp`,priority=0
+
+// GPUCluster is the Schema for the gpuclusters API
+type GPUCluster struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	Spec   GPUClusterSpec   `json:"spec,omitempty"`
+	Status GPUClusterStatus `json:"status,omitempty"`
+}
+
+//+kubebuilder:object:root=true
+
+// GPUClusterList contains a list of GPUCluster
+type GPUClusterList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []GPUCluster `json:"items"`
+}

api/nvidia/v1alpha1/groupversion_info.go

@@ -38,6 +38,7 @@ var (
 
 func addKnownTypes(scheme *runtime.Scheme) error {
 	scheme.AddKnownTypes(SchemeGroupVersion, &NVIDIADriver{}, &NVIDIADriverList{})
+	scheme.AddKnownTypes(SchemeGroupVersion, &GPUCluster{}, &GPUClusterList{})
 	metav1.AddToGroupVersion(scheme, SchemeGroupVersion)
 	return nil
 }