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Removed Factory from CloudProvider (#460)
* Removed Factory from CloudProvider * changed api to cloudProvider
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,206 @@ | ||
| /* | ||
| 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 aws | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "strings" | ||
| "time" | ||
|
|
||
| "github.com/aws/aws-sdk-go/aws" | ||
| "github.com/aws/aws-sdk-go/aws/ec2metadata" | ||
| "github.com/aws/aws-sdk-go/aws/endpoints" | ||
| "github.com/aws/aws-sdk-go/aws/request" | ||
| "github.com/aws/aws-sdk-go/aws/session" | ||
| "github.com/aws/aws-sdk-go/service/ec2" | ||
| "github.com/aws/aws-sdk-go/service/ssm" | ||
| "github.com/awslabs/karpenter/pkg/apis/provisioning/v1alpha1" | ||
| "github.com/awslabs/karpenter/pkg/cloudprovider" | ||
| "github.com/awslabs/karpenter/pkg/cloudprovider/aws/utils" | ||
| "github.com/awslabs/karpenter/pkg/utils/functional" | ||
| "github.com/awslabs/karpenter/pkg/utils/project" | ||
| "github.com/patrickmn/go-cache" | ||
| "go.uber.org/zap" | ||
| v1 "k8s.io/api/core/v1" | ||
| "knative.dev/pkg/apis" | ||
| ) | ||
|
|
||
| const ( | ||
| // CacheTTL restricts QPS to AWS APIs to this interval for verifying setup resources. | ||
| CacheTTL = 5 * time.Minute | ||
| // CacheCleanupInterval triggers cache cleanup (lazy eviction) at this interval. | ||
| CacheCleanupInterval = 10 * time.Minute | ||
| // ClusterTagKeyFormat is set on all Kubernetes owned resources. | ||
| ClusterTagKeyFormat = "kubernetes.io/cluster/%s" | ||
| // KarpenterTagKeyFormat is set on all Karpenter owned resources. | ||
| KarpenterTagKeyFormat = "karpenter.sh/cluster/%s" | ||
| ) | ||
|
|
||
| var ( | ||
| SupportedOperatingSystems = []string{ | ||
| v1alpha1.OperatingSystemLinux, | ||
| } | ||
| SupportedArchitectures = []string{ | ||
| v1alpha1.ArchitectureAmd64, | ||
| v1alpha1.ArchitectureArm64, | ||
| } | ||
| ) | ||
|
|
||
| type CloudProvider struct { | ||
| nodeAPI *NodeFactory | ||
| launchTemplateProvider *LaunchTemplateProvider | ||
| subnetProvider *SubnetProvider | ||
| instanceTypeProvider *InstanceTypeProvider | ||
| instanceProvider *InstanceProvider | ||
| } | ||
|
|
||
| func NewCloudProvider(options cloudprovider.Options) *CloudProvider { | ||
| sess := withUserAgent(session.Must( | ||
| session.NewSession(request.WithRetryer( | ||
| &aws.Config{STSRegionalEndpoint: endpoints.RegionalSTSEndpoint}, | ||
| utils.NewRetryer())))) | ||
| if *sess.Config.Region == "" { | ||
| zap.S().Debug("AWS region not configured, asking EC2 Instance Metadata Service") | ||
| *sess.Config.Region = getRegionFromIMDS(sess) | ||
| } | ||
| zap.S().Debugf("Using AWS region %s", *sess.Config.Region) | ||
| ec2api := ec2.New(sess) | ||
| return &CloudProvider{ | ||
| nodeAPI: &NodeFactory{ec2api: ec2api}, | ||
| launchTemplateProvider: &LaunchTemplateProvider{ | ||
| ec2api: ec2api, | ||
| cache: cache.New(CacheTTL, CacheCleanupInterval), | ||
| securityGroupProvider: NewSecurityGroupProvider(ec2api), | ||
| ssm: ssm.New(sess), | ||
| clientSet: options.ClientSet, | ||
| }, | ||
| subnetProvider: NewSubnetProvider(ec2api), | ||
| instanceTypeProvider: NewInstanceTypeProvider(ec2api), | ||
| instanceProvider: &InstanceProvider{ec2api: ec2api}, | ||
| } | ||
| } | ||
|
|
||
| // get the current region from EC2 IMDS | ||
| func getRegionFromIMDS(sess *session.Session) string { | ||
| region, err := ec2metadata.New(sess).Region() | ||
| if err != nil { | ||
| panic(fmt.Sprintf("Failed to call the metadata server's region API, %s", err.Error())) | ||
| } | ||
| return region | ||
| } | ||
|
|
||
| // withUserAgent adds a karpenter specific user-agent string to AWS session | ||
| func withUserAgent(sess *session.Session) *session.Session { | ||
| userAgent := fmt.Sprintf("karpenter.sh-%s", project.Version) | ||
| sess.Handlers.Build.PushBack(request.MakeAddToUserAgentFreeFormHandler(userAgent)) | ||
| return sess | ||
| } | ||
|
|
||
| // Create a set of nodes given the constraints. | ||
| func (a *CloudProvider) Create(ctx context.Context, provisioner *v1alpha1.Provisioner, packings []*cloudprovider.Packing) ([]*cloudprovider.PackedNode, error) { | ||
| instanceIDs := []*string{} | ||
| instancePackings := map[string]*cloudprovider.Packing{} | ||
| for _, packing := range packings { | ||
| constraints := Constraints(*packing.Constraints) | ||
| // 1. Get Subnets and constrain by zones | ||
| zonalSubnets, err := a.subnetProvider.GetZonalSubnets(ctx, provisioner.Spec.Cluster.Name) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("getting zonal subnets, %w", err) | ||
| } | ||
| zonalSubnetOptions := map[string][]*ec2.Subnet{} | ||
| for zone, subnets := range zonalSubnets { | ||
| if len(constraints.Zones) == 0 || functional.ContainsString(constraints.Zones, zone) { | ||
| zonalSubnetOptions[zone] = subnets | ||
| } | ||
| } | ||
| // 2. Get Launch Template | ||
| launchTemplate, err := a.launchTemplateProvider.Get(ctx, provisioner, &constraints) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("getting launch template, %w", err) | ||
| } | ||
| // 3. Create instance | ||
| instanceID, err := a.instanceProvider.Create(ctx, launchTemplate, packing.InstanceTypeOptions, zonalSubnets, constraints.GetCapacityType()) | ||
| if err != nil { | ||
| // TODO Aggregate errors and continue | ||
| return nil, fmt.Errorf("creating capacity %w", err) | ||
| } | ||
| instancePackings[*instanceID] = packing | ||
| instanceIDs = append(instanceIDs, instanceID) | ||
| } | ||
|
|
||
| // 4. Convert to Nodes | ||
| nodes, err := a.nodeAPI.For(ctx, instanceIDs) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("determining nodes, %w", err) | ||
| } | ||
| // 5. Convert to PackedNodes, TODO: move this logic into NodeAPI | ||
| packedNodes := []*cloudprovider.PackedNode{} | ||
| for instanceID, node := range nodes { | ||
| packing := instancePackings[instanceID] | ||
| node.Labels = packing.Constraints.Labels | ||
| node.Spec.Taints = packing.Constraints.Taints | ||
| packedNodes = append(packedNodes, &cloudprovider.PackedNode{ | ||
| Node: node, | ||
| Pods: packing.Pods, | ||
| }) | ||
| } | ||
| return packedNodes, nil | ||
| } | ||
|
|
||
| func (a *CloudProvider) GetInstanceTypes(ctx context.Context) ([]cloudprovider.InstanceType, error) { | ||
| return a.instanceTypeProvider.Get(ctx) | ||
| } | ||
|
|
||
| func (a *CloudProvider) Terminate(ctx context.Context, nodes []*v1.Node) error { | ||
| return a.instanceProvider.Terminate(ctx, nodes) | ||
| } | ||
|
|
||
| // Validate cloud provider specific components of the cluster spec | ||
| func (a *CloudProvider) Validate(ctx context.Context, spec *v1alpha1.ProvisionerSpec) (errs *apis.FieldError) { | ||
| return errs.Also( | ||
| validateAllowedLabels(*spec), | ||
| validateCapacityTypeLabel(*spec), | ||
| validateLaunchTemplateLabels(*spec), | ||
| ) | ||
| } | ||
|
|
||
| func validateAllowedLabels(spec v1alpha1.ProvisionerSpec) (errs *apis.FieldError) { | ||
| for key := range spec.Labels { | ||
| if strings.HasPrefix(key, AWSLabelPrefix) && !functional.ContainsString(AllowedLabels, key) { | ||
| errs = errs.Also(apis.ErrInvalidKeyName(key, "spec.labels")) | ||
| } | ||
| } | ||
| return errs | ||
| } | ||
|
|
||
| func validateCapacityTypeLabel(spec v1alpha1.ProvisionerSpec) (errs *apis.FieldError) { | ||
| capacityType, ok := spec.Labels[CapacityTypeLabel] | ||
| if !ok { | ||
| return nil | ||
| } | ||
| capacityTypes := []string{CapacityTypeSpot, CapacityTypeOnDemand} | ||
| if !functional.ContainsString(capacityTypes, capacityType) { | ||
| errs = errs.Also(apis.ErrInvalidValue(fmt.Sprintf("%s not in %v", capacityType, capacityTypes), fmt.Sprintf("spec.labels[%s]", CapacityTypeLabel))) | ||
| } | ||
| return errs | ||
| } | ||
|
|
||
| func validateLaunchTemplateLabels(spec v1alpha1.ProvisionerSpec) (errs *apis.FieldError) { | ||
| if _, versionExists := spec.Labels[LaunchTemplateVersionLabel]; versionExists { | ||
| if _, bothExist := spec.Labels[LaunchTemplateIdLabel]; !bothExist { | ||
| return errs.Also(apis.ErrMissingField(fmt.Sprintf("spec.labels[%s]", LaunchTemplateIdLabel))) | ||
| } | ||
| } | ||
| return errs | ||
| } |
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