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| 1 | +package main |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "time" |
| 6 | + |
| 7 | + providerconfigv1 "github.com/GoogleCloudPlatform/gke-enterprise-mt/apis/providerconfig/v1" |
| 8 | + "github.com/GoogleCloudPlatform/gke-enterprise-mt/pkg/framework" |
| 9 | + networkclientset "github.com/GoogleCloudPlatform/gke-networking-api/client/network/clientset/versioned" |
| 10 | + networkinformers "github.com/GoogleCloudPlatform/gke-networking-api/client/network/informers/externalversions" |
| 11 | + topologyclientset "github.com/GoogleCloudPlatform/gke-networking-api/client/nodetopology/clientset/versioned" |
| 12 | + "k8s.io/apimachinery/pkg/runtime/schema" |
| 13 | + "k8s.io/client-go/dynamic" |
| 14 | + dynamicinformer "k8s.io/client-go/dynamic/dynamicinformer" |
| 15 | + cloudprovider "k8s.io/cloud-provider" |
| 16 | + nodeipamcontrolleroptions "k8s.io/cloud-provider-gcp/cmd/cloud-controller-manager/options" |
| 17 | + "k8s.io/cloud-provider-gcp/pkg/controller/gketenantcontrollers" |
| 18 | + nodeipamconfig "k8s.io/cloud-provider-gcp/pkg/controller/nodeipam/config" |
| 19 | + "k8s.io/cloud-provider/app" |
| 20 | + cloudcontrollerconfig "k8s.io/cloud-provider/app/config" |
| 21 | + controllermanagerapp "k8s.io/controller-manager/app" |
| 22 | + "k8s.io/controller-manager/controller" |
| 23 | + "k8s.io/klog/v2" |
| 24 | + |
| 25 | + "k8s.io/cloud-provider-gcp/pkg/controller/nodeipam" |
| 26 | + "k8s.io/cloud-provider-gcp/pkg/controller/nodeipam/ipam" |
| 27 | + "k8s.io/cloud-provider/controllers/node" |
| 28 | + "k8s.io/cloud-provider/controllers/nodelifecycle" |
| 29 | +) |
| 30 | + |
| 31 | +// startGKETenantControllerManagerWrapper is used to take cloud config as input and start the GKE TenantControllerManager controller |
| 32 | +func startGKETenantControllerManagerWrapper(initContext app.ControllerInitContext, completedConfig *cloudcontrollerconfig.CompletedConfig, cloud cloudprovider.Interface, nodeIPAMControllerOptions nodeipamcontrolleroptions.NodeIPAMControllerOptions) app.InitFunc { |
| 33 | + return func(ctx context.Context, controllerContext controllermanagerapp.ControllerContext) (controller.Interface, bool, error) { |
| 34 | + return startGKETenantControllerManager(ctx, initContext, controllerContext, completedConfig, cloud, *nodeIPAMControllerOptions.NodeIPAMControllerConfiguration) |
| 35 | + } |
| 36 | +} |
| 37 | + |
| 38 | +func startGKETenantControllerManager(ctx context.Context, initContext app.ControllerInitContext, controlexContext controllermanagerapp.ControllerContext, completedConfig *cloudcontrollerconfig.CompletedConfig, cloud cloudprovider.Interface, nodeIPAMConfig nodeipamconfig.NodeIPAMControllerConfiguration) (controller.Interface, bool, error) { |
| 39 | + if !enableProviderConfigController { |
| 40 | + klog.Infof("GKE Tenant Controller Manager is disabled (enable with --enable-provider-config-controller)") |
| 41 | + return nil, false, nil |
| 42 | + } |
| 43 | + |
| 44 | + clientConfig := completedConfig.Kubeconfig |
| 45 | + |
| 46 | + // Create network clients and informers |
| 47 | + networkClient, err := networkclientset.NewForConfig(clientConfig) |
| 48 | + if err != nil { |
| 49 | + klog.Errorf("Failed to create network client: %v", err) |
| 50 | + return nil, false, err |
| 51 | + } |
| 52 | + networkInformerFactory := networkinformers.NewSharedInformerFactory(networkClient, 12*time.Hour) |
| 53 | + networkInformer := networkInformerFactory.Networking().V1().Networks() |
| 54 | + gnpInformer := networkInformerFactory.Networking().V1().GKENetworkParamSets() |
| 55 | + |
| 56 | + // Create topology client |
| 57 | + nodeTopologyClient, err := topologyclientset.NewForConfig(clientConfig) |
| 58 | + if err != nil { |
| 59 | + klog.Errorf("Failed to create topology client: %v", err) |
| 60 | + return nil, false, err |
| 61 | + } |
| 62 | + |
| 63 | + // Eagerly request the main Node informer so the SharedInformerFactory starts it. |
| 64 | + // If the tenant controller manager is the only enabled controller, the informer |
| 65 | + // factory won't start the node cache unless we explicitly ask for it here. |
| 66 | + _ = controlexContext.InformerFactory.Core().V1().Nodes().Informer() |
| 67 | + |
| 68 | + // Create dynamic client for framework |
| 69 | + dynamicClient, err := dynamic.NewForConfig(clientConfig) |
| 70 | + if err != nil { |
| 71 | + klog.Errorf("Failed to create dynamic client: %v", err) |
| 72 | + return nil, false, err |
| 73 | + } |
| 74 | + |
| 75 | + // Create dynamic informer factory for ProviderConfig |
| 76 | + gvr := schema.GroupVersionResource{ |
| 77 | + Group: providerconfigv1.GroupName, |
| 78 | + Version: providerconfigv1.SchemeGroupVersion.Version, |
| 79 | + Resource: "providerconfigs", |
| 80 | + } |
| 81 | + dynamicInformerFactory := dynamicinformer.NewDynamicSharedInformerFactory(dynamicClient, 12*time.Hour) |
| 82 | + providerConfigInformer := dynamicInformerFactory.ForResource(gvr).Informer() |
| 83 | + |
| 84 | + // Define controllers |
| 85 | + controllers := map[string]gketenantcontrollers.ControllerStartFunc{ |
| 86 | + "node-controller": func(cfg *gketenantcontrollers.ControllerConfig) error { |
| 87 | + klog.Infof("Creating OSS Cloud Node Controller for %s...", cfg.ProviderConfig.Name) |
| 88 | + nodeController, err := node.NewCloudNodeController( |
| 89 | + cfg.NodeInformer, |
| 90 | + cfg.KubeClient, |
| 91 | + cfg.Cloud, |
| 92 | + completedConfig.ComponentConfig.NodeStatusUpdateFrequency.Duration, |
| 93 | + completedConfig.ComponentConfig.NodeController.ConcurrentNodeSyncs, |
| 94 | + ) |
| 95 | + if err != nil { |
| 96 | + return err |
| 97 | + } |
| 98 | + klog.Infof("Starting OSS Cloud Node Controller for %s (blocking)", cfg.ProviderConfig.Name) |
| 99 | + nodeController.Run(cfg.Context.Done(), cfg.ControllerContext.ControllerManagerMetrics) |
| 100 | + return nil |
| 101 | + }, |
| 102 | + "node-ipam-controller": func(cfg *gketenantcontrollers.ControllerConfig) error { |
| 103 | + klog.Infof("Starting Node IPAM Controller for %s...", cfg.ProviderConfig.Name) |
| 104 | + clusterCIDR, err := gketenantcontrollers.GetClusterCIDRsFromProviderConfig(cfg.ProviderConfig) |
| 105 | + if err != nil { |
| 106 | + klog.Errorf("Failed to get ClusterCIDRs from ProviderConfig: %v. Node IPAM Controller will be disabled.", err) |
| 107 | + return nil // Don't fail the whole start |
| 108 | + } |
| 109 | + |
| 110 | + _, started, err := nodeipam.StartNodeIpamController( |
| 111 | + cfg.Context, |
| 112 | + cfg.NodeInformer, |
| 113 | + cfg.KubeClient, |
| 114 | + cfg.Cloud, |
| 115 | + clusterCIDR, |
| 116 | + completedConfig.ComponentConfig.KubeCloudShared.AllocateNodeCIDRs, |
| 117 | + nodeIPAMConfig.ServiceCIDR, |
| 118 | + nodeIPAMConfig.SecondaryServiceCIDR, |
| 119 | + nodeIPAMConfig, |
| 120 | + networkInformer, |
| 121 | + gnpInformer, |
| 122 | + nodeTopologyClient, |
| 123 | + ipam.CIDRAllocatorType(completedConfig.ComponentConfig.KubeCloudShared.CIDRAllocatorType), |
| 124 | + cfg.ControllerContext.ControllerManagerMetrics, |
| 125 | + ) |
| 126 | + if err != nil { |
| 127 | + return err |
| 128 | + } |
| 129 | + if !started { |
| 130 | + klog.Infof("Node IPAM Controller not started (disabled in config) for %s", cfg.ProviderConfig.Name) |
| 131 | + } else { |
| 132 | + klog.Infof("Node IPAM Controller started with ClusterCIDR: %s for %s", clusterCIDR, cfg.ProviderConfig.Name) |
| 133 | + } |
| 134 | + // Block until context is canceled so starter doesn't exit early |
| 135 | + <-cfg.Context.Done() |
| 136 | + return nil |
| 137 | + }, |
| 138 | + "node-lifecycle-controller": func(cfg *gketenantcontrollers.ControllerConfig) error { |
| 139 | + klog.Infof("Creating Node Lifecycle Controller for %s...", cfg.ProviderConfig.Name) |
| 140 | + nodeMonitorPeriod := completedConfig.ComponentConfig.KubeCloudShared.NodeMonitorPeriod.Duration |
| 141 | + lifecycleController, err := nodelifecycle.NewCloudNodeLifecycleController( |
| 142 | + cfg.NodeInformer, |
| 143 | + cfg.KubeClient, |
| 144 | + cfg.Cloud, |
| 145 | + nodeMonitorPeriod, |
| 146 | + ) |
| 147 | + if err != nil { |
| 148 | + return err |
| 149 | + } |
| 150 | + klog.Infof("Starting Node Lifecycle Controller for %s...", cfg.ProviderConfig.Name) |
| 151 | + lifecycleController.Run(cfg.Context, cfg.ControllerContext.ControllerManagerMetrics) |
| 152 | + return nil |
| 153 | + }, |
| 154 | + } |
| 155 | + |
| 156 | + // Create the starter |
| 157 | + starter := gketenantcontrollers.NewNodeControllerStarter( |
| 158 | + completedConfig.ClientBuilder, |
| 159 | + completedConfig.ClientBuilder.ClientOrDie(initContext.ClientName), |
| 160 | + controlexContext.InformerFactory, |
| 161 | + completedConfig, |
| 162 | + controlexContext, |
| 163 | + controllers, |
| 164 | + ) |
| 165 | + |
| 166 | + // Create the framework manager |
| 167 | + mgr := framework.New( |
| 168 | + dynamicClient, |
| 169 | + providerConfigInformer, |
| 170 | + gkeTenantControllerManagerName, |
| 171 | + starter, |
| 172 | + ctx.Done(), |
| 173 | + ) |
| 174 | + |
| 175 | + // Start network informers |
| 176 | + networkInformerFactory.Start(ctx.Done()) |
| 177 | + // Start dynamic informers |
| 178 | + dynamicInformerFactory.Start(ctx.Done()) |
| 179 | + |
| 180 | + // Run the manager |
| 181 | + go mgr.Run() |
| 182 | + |
| 183 | + return nil, true, nil |
| 184 | +} |
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