|
| 1 | +/* |
| 2 | +Copyright 2020 The Kubernetes Authors. |
| 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 cloudstack |
| 18 | + |
| 19 | +import ( |
| 20 | + "fmt" |
| 21 | + "strconv" |
| 22 | + "strings" |
| 23 | + |
| 24 | + "k8s.io/apimachinery/pkg/api/resource" |
| 25 | + "k8s.io/autoscaler/cluster-autoscaler/cloudprovider" |
| 26 | + "k8s.io/autoscaler/cluster-autoscaler/config" |
| 27 | + "k8s.io/autoscaler/cluster-autoscaler/utils/errors" |
| 28 | + |
| 29 | + v1 "k8s.io/api/core/v1" |
| 30 | + klog "k8s.io/klog/v2" |
| 31 | +) |
| 32 | + |
| 33 | +const ( |
| 34 | + // GPULabel is the label added to nodes with GPU resource. |
| 35 | + GPULabel = "accelerator" |
| 36 | +) |
| 37 | + |
| 38 | +var ( |
| 39 | + availableGPUTypes = map[string]struct{}{ |
| 40 | + "nvidia-tesla-k80": {}, |
| 41 | + "nvidia-tesla-p100": {}, |
| 42 | + "nvidia-tesla-v100": {}, |
| 43 | + } |
| 44 | + availableMachineTypes = []string{} |
| 45 | +) |
| 46 | + |
| 47 | +// cloudStackCloudProvider implements CloudProvider interface. |
| 48 | +type cloudStackCloudProvider struct { |
| 49 | + manager *manager |
| 50 | + resourceLimiter *cloudprovider.ResourceLimiter |
| 51 | +} |
| 52 | + |
| 53 | +// Name returns name of the cloud provider. |
| 54 | +func (provider *cloudStackCloudProvider) Name() string { |
| 55 | + return cloudprovider.CloudStackProviderName |
| 56 | +} |
| 57 | + |
| 58 | +// NodeGroups returns all node groups configured for this cloud provider. |
| 59 | +func (provider *cloudStackCloudProvider) NodeGroups() []cloudprovider.NodeGroup { |
| 60 | + asg := provider.manager.asg |
| 61 | + return []cloudprovider.NodeGroup{asg} |
| 62 | +} |
| 63 | + |
| 64 | +// NodeGroupForNode returns the node group for the given node, nil if the node |
| 65 | +// should not be processed by cluster autoscaler, or non-nil error if such |
| 66 | +// occurred. |
| 67 | +func (provider *cloudStackCloudProvider) NodeGroupForNode(node *v1.Node) (cloudprovider.NodeGroup, error) { |
| 68 | + return provider.manager.clusterForNode(node) |
| 69 | +} |
| 70 | + |
| 71 | +// Cleanup cleans up open resources before the cloud provider is destroyed, i.e. go routines etc. |
| 72 | +func (provider *cloudStackCloudProvider) Cleanup() error { |
| 73 | + return provider.manager.cleanup() |
| 74 | +} |
| 75 | + |
| 76 | +// Refresh is called before every main loop and can be used to dynamically update cloud provider state. |
| 77 | +func (provider *cloudStackCloudProvider) Refresh() error { |
| 78 | + return provider.manager.refresh() |
| 79 | +} |
| 80 | + |
| 81 | +// GetAvailableMachineTypes get all machine types that can be requested from the cloud provider. |
| 82 | +func (provider *cloudStackCloudProvider) GetAvailableMachineTypes() ([]string, error) { |
| 83 | + return availableMachineTypes, nil |
| 84 | +} |
| 85 | + |
| 86 | +// GetResourceLimiter returns struct containing limits (max, min) for resources (cores, memory etc.). |
| 87 | +func (provider *cloudStackCloudProvider) GetResourceLimiter() (*cloudprovider.ResourceLimiter, error) { |
| 88 | + return provider.resourceLimiter, nil |
| 89 | +} |
| 90 | + |
| 91 | +// GPULabel returns the label added to nodes with GPU resource. |
| 92 | +func (provider *cloudStackCloudProvider) GPULabel() string { |
| 93 | + return GPULabel |
| 94 | +} |
| 95 | + |
| 96 | +// GetAvailableGPUTypes return all available GPU types cloud provider supports. |
| 97 | +func (provider *cloudStackCloudProvider) GetAvailableGPUTypes() map[string]struct{} { |
| 98 | + return availableGPUTypes |
| 99 | +} |
| 100 | + |
| 101 | +// Pricing returns pricing model for this cloud provider or error if not available. |
| 102 | +func (provider *cloudStackCloudProvider) Pricing() (cloudprovider.PricingModel, errors.AutoscalerError) { |
| 103 | + return nil, cloudprovider.ErrNotImplemented |
| 104 | +} |
| 105 | + |
| 106 | +// NewNodeGroup builds a theoretical node group based on the node definition provided. The node group is not automatically |
| 107 | +// created on the cloud provider side. The node group is not returned by NodeGroups() until it is created. |
| 108 | +func (provider *cloudStackCloudProvider) NewNodeGroup(machineType string, labels map[string]string, systemLabels map[string]string, taints []v1.Taint, extraResources map[string]resource.Quantity) (cloudprovider.NodeGroup, error) { |
| 109 | + return nil, cloudprovider.ErrNotImplemented |
| 110 | +} |
| 111 | + |
| 112 | +func createClusterConfig(opts config.AutoscalingOptions) (*clusterConfig, error) { |
| 113 | + if len(opts.NodeGroups) == 0 { |
| 114 | + return nil, fmt.Errorf("Cluster details not present. Please use the --nodes=<min>:<max>:<id>") |
| 115 | + } |
| 116 | + |
| 117 | + clusterDetails := strings.Split(opts.NodeGroups[0], ":") |
| 118 | + if len(clusterDetails) != 3 { |
| 119 | + return nil, fmt.Errorf("Cluster details not present. Please use the --nodes=<min>:<max>:<id>") |
| 120 | + } |
| 121 | + |
| 122 | + minClusterSize, err := strconv.Atoi(clusterDetails[0]) |
| 123 | + if err != nil { |
| 124 | + return nil, fmt.Errorf("Invalid value for min cluster size %s : %v", clusterDetails[0], err) |
| 125 | + } |
| 126 | + |
| 127 | + maxClusterSize, err := strconv.Atoi(clusterDetails[1]) |
| 128 | + if err != nil { |
| 129 | + return nil, fmt.Errorf("Invalid value for max cluster size %s : %v", clusterDetails[1], err) |
| 130 | + } |
| 131 | + |
| 132 | + return &clusterConfig{ |
| 133 | + clusterID: clusterDetails[2], |
| 134 | + minSize: minClusterSize, |
| 135 | + maxSize: maxClusterSize, |
| 136 | + }, nil |
| 137 | +} |
| 138 | + |
| 139 | +// BuildCloudStack builds CloudProvider implementation for CloudStack |
| 140 | +func BuildCloudStack(opts config.AutoscalingOptions, do cloudprovider.NodeGroupDiscoveryOptions, rl *cloudprovider.ResourceLimiter) cloudprovider.CloudProvider { |
| 141 | + |
| 142 | + config, err := createClusterConfig(opts) |
| 143 | + if err != nil { |
| 144 | + klog.Fatal(err) |
| 145 | + } |
| 146 | + |
| 147 | + manager, err := newManager(config, withConfigFile(opts.CloudConfig)) |
| 148 | + if err != nil { |
| 149 | + klog.Fatalf("Failed to create CloudStack Manager: %v", err) |
| 150 | + } |
| 151 | + |
| 152 | + return &cloudStackCloudProvider{ |
| 153 | + manager: manager, |
| 154 | + resourceLimiter: rl, |
| 155 | + } |
| 156 | +} |
0 commit comments