Backport #6245 [CA] AWS: cache instance requirements into CA 1.26

cluster-autoscaler/cloudprovider/aws/auto_scaling_groups.go

@@ -25,6 +25,7 @@ import (
 
 	"k8s.io/autoscaler/cluster-autoscaler/cloudprovider/aws/aws-sdk-go/aws"
 	"k8s.io/autoscaler/cluster-autoscaler/cloudprovider/aws/aws-sdk-go/service/autoscaling"
+	"k8s.io/autoscaler/cluster-autoscaler/cloudprovider/aws/aws-sdk-go/service/ec2"
 	"k8s.io/autoscaler/cluster-autoscaler/config/dynamic"
 	klog "k8s.io/klog/v2"
 )
@@ -59,6 +60,7 @@ type mixedInstancesPolicy struct {
 	launchTemplate                *launchTemplate
 	instanceTypesOverrides        []string
 	instanceRequirementsOverrides *autoscaling.InstanceRequirements
+	instanceRequirements          *ec2.InstanceRequirements
 }
 
 type asg struct {
@@ -539,6 +541,12 @@ func (m *asgCache) buildAsgFromAWS(g *autoscaling.Group) (*asg, error) {
 			instanceRequirementsOverrides: getInstanceTypeRequirements(g.MixedInstancesPolicy.LaunchTemplate.Overrides),
 		}
 
+		instanceRequirements, err := m.getInstanceRequirementsFromMixedInstancesPolicy(asg.MixedInstancesPolicy)
+		if err != nil {
+			return nil, fmt.Errorf("unable to retrieve instance requirements from mixed instance policy, err: %v", err)
+		}
+		asg.MixedInstancesPolicy.instanceRequirements = instanceRequirements
+
 		if len(asg.MixedInstancesPolicy.instanceTypesOverrides) != 0 && asg.MixedInstancesPolicy.instanceRequirementsOverrides != nil {
 			return nil, fmt.Errorf("invalid setup of both instance type and instance requirements overrides configured")
 		}
@@ -547,6 +555,27 @@ func (m *asgCache) buildAsgFromAWS(g *autoscaling.Group) (*asg, error) {
 	return asg, nil
 }
 
+func (m *asgCache) getInstanceRequirementsFromMixedInstancesPolicy(policy *mixedInstancesPolicy) (*ec2.InstanceRequirements, error) {
+	instanceRequirements := &ec2.InstanceRequirements{}
+	if policy.instanceRequirementsOverrides != nil {
+		var err error
+		instanceRequirements, err = m.awsService.getEC2RequirementsFromAutoscaling(policy.instanceRequirementsOverrides)
+		if err != nil {
+			return nil, err
+		}
+	} else if policy.launchTemplate != nil {
+		templateData, err := m.awsService.getLaunchTemplateData(policy.launchTemplate.name, policy.launchTemplate.version)
+		if err != nil {
+			return nil, err
+		}
+
+		if templateData.InstanceRequirements != nil {
+			instanceRequirements = templateData.InstanceRequirements
+		}
+	}
+	return instanceRequirements, nil
+}
+
 func (m *asgCache) buildInstanceRefFromAWS(instance *autoscaling.Instance) AwsInstanceRef {
 	providerID := fmt.Sprintf("aws:///%s/%s", aws.StringValue(instance.AvailabilityZone), aws.StringValue(instance.InstanceId))
 	return AwsInstanceRef{

cluster-autoscaler/cloudprovider/aws/aws_manager.go

@@ -271,9 +271,7 @@ func (m *AwsManager) buildNodeFromTemplate(asg *asg, template *asgTemplate) (*ap
 	node.Status.Capacity[gpu.ResourceNvidiaGPU] = *resource.NewQuantity(template.InstanceType.GPU, resource.DecimalSI)
 	node.Status.Capacity[apiv1.ResourceMemory] = *resource.NewQuantity(template.InstanceType.MemoryMb*1024*1024, resource.DecimalSI)
 
-	if err := m.updateCapacityWithRequirementsOverrides(&node.Status.Capacity, asg.MixedInstancesPolicy); err != nil {
-		return nil, err
-	}
+	m.updateCapacityWithRequirementsOverrides(&node.Status.Capacity, asg.MixedInstancesPolicy)
 
 	resourcesFromTags := extractAllocatableResourcesFromAsg(template.Tags)
 	klog.V(5).Infof("Extracted resources from ASG tags %v", resourcesFromTags)
@@ -348,15 +346,12 @@ func joinNodeLabelsChoosingUserValuesOverAPIValues(extractedLabels map[string]st
 	return result
 }
 
-func (m *AwsManager) updateCapacityWithRequirementsOverrides(capacity *apiv1.ResourceList, policy *mixedInstancesPolicy) error {
-	if policy == nil {
-		return nil
+func (m *AwsManager) updateCapacityWithRequirementsOverrides(capacity *apiv1.ResourceList, policy *mixedInstancesPolicy) {
+	if policy == nil || policy.instanceRequirements == nil {
+		return
 	}
 
-	instanceRequirements, err := m.getInstanceRequirementsFromMixedInstancesPolicy(policy)
-	if err != nil {
-		return fmt.Errorf("error while building node template using instance requirements: (%s)", err)
-	}
+	instanceRequirements := policy.instanceRequirements
 
 	if instanceRequirements.VCpuCount != nil && instanceRequirements.VCpuCount.Min != nil {
 		(*capacity)[apiv1.ResourceCPU] = *resource.NewQuantity(*instanceRequirements.VCpuCount.Min, resource.DecimalSI)
@@ -375,29 +370,6 @@ func (m *AwsManager) updateCapacityWithRequirementsOverrides(capacity *apiv1.Res
 			}
 		}
 	}
-
-	return nil
-}
-
-func (m *AwsManager) getInstanceRequirementsFromMixedInstancesPolicy(policy *mixedInstancesPolicy) (*ec2.InstanceRequirements, error) {
-	instanceRequirements := &ec2.InstanceRequirements{}
-	if policy.instanceRequirementsOverrides != nil {
-		var err error
-		instanceRequirements, err = m.awsService.getEC2RequirementsFromAutoscaling(policy.instanceRequirementsOverrides)
-		if err != nil {
-			return nil, err
-		}
-	} else if policy.launchTemplate != nil {
-		templateData, err := m.awsService.getLaunchTemplateData(policy.launchTemplate.name, policy.launchTemplate.version)
-		if err != nil {
-			return nil, err
-		}
-
-		if templateData.InstanceRequirements != nil {
-			instanceRequirements = templateData.InstanceRequirements
-		}
-	}
-	return instanceRequirements, nil
 }
 
 func buildGenericLabels(template *asgTemplate, nodeName string) map[string]string {

cluster-autoscaler/cloudprovider/aws/aws_manager_test.go

@@ -483,18 +483,18 @@ func TestBuildNodeFromTemplate(t *testing.T) {
 
 	// Node with instance requirements
 	asg.MixedInstancesPolicy = &mixedInstancesPolicy{
-		instanceRequirementsOverrides: &autoscaling.InstanceRequirements{
-			VCpuCount: &autoscaling.VCpuCountRequest{
+		instanceRequirements: &ec2.InstanceRequirements{
+			VCpuCount: &ec2.VCpuCountRange{
 				Min: aws.Int64(4),
 				Max: aws.Int64(8),
 			},
-			MemoryMiB: &autoscaling.MemoryMiBRequest{
+			MemoryMiB: &ec2.MemoryMiB{
 				Min: aws.Int64(4),
 				Max: aws.Int64(8),
 			},
 			AcceleratorTypes:         []*string{aws.String(autoscaling.AcceleratorTypeGpu)},
 			AcceleratorManufacturers: []*string{aws.String(autoscaling.AcceleratorManufacturerNvidia)},
-			AcceleratorCount: &autoscaling.AcceleratorCountRequest{
+			AcceleratorCount: &ec2.AcceleratorCount{
 				Min: aws.Int64(4),
 				Max: aws.Int64(8),
 			},