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| 1 | +/* |
| 2 | + * Copyright (c) 2025 NVIDIA CORPORATION. All rights reserved. |
| 3 | + * |
| 4 | + * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | + * you may not use this file except in compliance with the License. |
| 6 | + * You may obtain a copy of the License at |
| 7 | + * |
| 8 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | + * |
| 10 | + * Unless required by applicable law or agreed to in writing, software |
| 11 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | + * See the License for the specific language governing permissions and |
| 14 | + * limitations under the License. |
| 15 | + */ |
| 16 | + |
| 17 | +package main |
| 18 | + |
| 19 | +import ( |
| 20 | + "context" |
| 21 | + "fmt" |
| 22 | + |
| 23 | + appsv1 "k8s.io/api/apps/v1" |
| 24 | + |
| 25 | + nvapi "github.com/NVIDIA/k8s-dra-driver-gpu/api/nvidia.com/resource/v1beta1" |
| 26 | +) |
| 27 | + |
| 28 | +// MultiNamespaceDaemonSetManager manages DaemonSets across multiple namespaces. |
| 29 | +type MultiNamespaceDaemonSetManager struct { |
| 30 | + config *ManagerConfig |
| 31 | + managers map[string]*DaemonSetManager |
| 32 | +} |
| 33 | + |
| 34 | +// NewMultiNamespaceDaemonSetManager creates a new multi-namespace DaemonSet manager |
| 35 | +// It creates individual DaemonSet managers for the driver namespace and all additional namespaces. |
| 36 | +func NewMultiNamespaceDaemonSetManager(config *ManagerConfig, getComputeDomain GetComputeDomainFunc) *MultiNamespaceDaemonSetManager { |
| 37 | + m := &MultiNamespaceDaemonSetManager{ |
| 38 | + config: config, |
| 39 | + managers: make(map[string]*DaemonSetManager), |
| 40 | + } |
| 41 | + |
| 42 | + // Use a map to deduplicate namespaces (driver namespace + additional namespaces) |
| 43 | + uniqueNamespaces := make(map[string]struct{}) |
| 44 | + uniqueNamespaces[config.driverNamespace] = struct{}{} |
| 45 | + for _, ns := range config.additionalNamespaces { |
| 46 | + uniqueNamespaces[ns] = struct{}{} |
| 47 | + } |
| 48 | + |
| 49 | + // Create managers for unique namespaces |
| 50 | + for ns := range uniqueNamespaces { |
| 51 | + configNew := *config |
| 52 | + configNew.driverNamespace = ns |
| 53 | + configNew.additionalNamespaces = nil |
| 54 | + m.managers[ns] = NewDaemonSetManager(&configNew, getComputeDomain) |
| 55 | + } |
| 56 | + |
| 57 | + return m |
| 58 | +} |
| 59 | + |
| 60 | +// Start starts all DaemonSet managers for all namespaces. |
| 61 | +func (m *MultiNamespaceDaemonSetManager) Start(ctx context.Context) error { |
| 62 | + for ns, manager := range m.managers { |
| 63 | + if err := manager.Start(ctx); err != nil { |
| 64 | + return fmt.Errorf("failed to start DaemonSet manager for namespace %s: %w", ns, err) |
| 65 | + } |
| 66 | + } |
| 67 | + return nil |
| 68 | +} |
| 69 | + |
| 70 | +// Stop stops all DaemonSet managers for all namespaces. |
| 71 | +func (m *MultiNamespaceDaemonSetManager) Stop() error { |
| 72 | + for ns, manager := range m.managers { |
| 73 | + if err := manager.Stop(); err != nil { |
| 74 | + return fmt.Errorf("failed to stop DaemonSet manager for namespace %s: %w", ns, err) |
| 75 | + } |
| 76 | + } |
| 77 | + return nil |
| 78 | +} |
| 79 | + |
| 80 | +// Create creates a DaemonSet in the provided namespace. |
| 81 | +func (m *MultiNamespaceDaemonSetManager) Create(ctx context.Context, cd *nvapi.ComputeDomain) (*appsv1.DaemonSet, error) { |
| 82 | + for ns, manager := range m.managers { |
| 83 | + ds, err := manager.Get(ctx, string(cd.UID)) |
| 84 | + if err != nil { |
| 85 | + return nil, fmt.Errorf("failed to get DaemonSet in namespace %s: %w", ns, err) |
| 86 | + } |
| 87 | + if ds != nil { |
| 88 | + return ds, nil |
| 89 | + } |
| 90 | + } |
| 91 | + manager, exists := m.managers[m.config.driverNamespace] |
| 92 | + if !exists { |
| 93 | + return nil, fmt.Errorf("no DaemonSet manager found for namespace %s", m.config.driverNamespace) |
| 94 | + } |
| 95 | + return manager.Create(ctx, cd) |
| 96 | +} |
| 97 | + |
| 98 | +// Delete deletes DaemonSets across all namespaces for the given ComputeDomain UID. |
| 99 | +func (m *MultiNamespaceDaemonSetManager) Delete(ctx context.Context, cdUID string) error { |
| 100 | + for ns, manager := range m.managers { |
| 101 | + if err := manager.Delete(ctx, cdUID); err != nil { |
| 102 | + return fmt.Errorf("failed to delete DaemonSet in namespace %s: %w", ns, err) |
| 103 | + } |
| 104 | + } |
| 105 | + return nil |
| 106 | +} |
| 107 | + |
| 108 | +// RemoveFinalizer removes finalizers from DaemonSets across all namespaces. |
| 109 | +func (m *MultiNamespaceDaemonSetManager) RemoveFinalizer(ctx context.Context, cdUID string) error { |
| 110 | + for ns, manager := range m.managers { |
| 111 | + if err := manager.RemoveFinalizer(ctx, cdUID); err != nil { |
| 112 | + return fmt.Errorf("failed to remove finalizer from DaemonSet in namespace %s: %w", ns, err) |
| 113 | + } |
| 114 | + } |
| 115 | + return nil |
| 116 | +} |
| 117 | + |
| 118 | +// AssertRemoved asserts that DaemonSets are removed across all namespaces. |
| 119 | +func (m *MultiNamespaceDaemonSetManager) AssertRemoved(ctx context.Context, cdUID string) error { |
| 120 | + for ns, manager := range m.managers { |
| 121 | + if err := manager.AssertRemoved(ctx, cdUID); err != nil { |
| 122 | + return fmt.Errorf("failed to assert DaemonSet removal in namespace %s: %w", ns, err) |
| 123 | + } |
| 124 | + } |
| 125 | + return nil |
| 126 | +} |
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