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api_op_GetSpotPlacementScores.go
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api_op_GetSpotPlacementScores.go
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// Code generated by smithy-go-codegen DO NOT EDIT.
package ec2
import (
"context"
"fmt"
awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
"github.com/aws/aws-sdk-go-v2/aws/signer/v4"
"github.com/aws/aws-sdk-go-v2/service/ec2/types"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// Calculates the Spot placement score for a Region or Availability Zone based on
// the specified target capacity and compute requirements. You can specify your
// compute requirements either by using InstanceRequirementsWithMetadata and
// letting Amazon EC2 choose the optimal instance types to fulfill your Spot
// request, or you can specify the instance types by using InstanceTypes. For more
// information, see Spot placement score
// (https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/spot-placement-score.html)
// in the Amazon EC2 User Guide.
func (c *Client) GetSpotPlacementScores(ctx context.Context, params *GetSpotPlacementScoresInput, optFns ...func(*Options)) (*GetSpotPlacementScoresOutput, error) {
if params == nil {
params = &GetSpotPlacementScoresInput{}
}
result, metadata, err := c.invokeOperation(ctx, "GetSpotPlacementScores", params, optFns, c.addOperationGetSpotPlacementScoresMiddlewares)
if err != nil {
return nil, err
}
out := result.(*GetSpotPlacementScoresOutput)
out.ResultMetadata = metadata
return out, nil
}
type GetSpotPlacementScoresInput struct {
// The target capacity.
//
// This member is required.
TargetCapacity *int32
// Checks whether you have the required permissions for the action, without
// actually making the request, and provides an error response. If you have the
// required permissions, the error response is DryRunOperation. Otherwise, it is
// UnauthorizedOperation.
DryRun *bool
// The attributes for the instance types. When you specify instance attributes,
// Amazon EC2 will identify instance types with those attributes. If you specify
// InstanceRequirementsWithMetadata, you can't specify InstanceTypes.
InstanceRequirementsWithMetadata *types.InstanceRequirementsWithMetadataRequest
// The instance types. We recommend that you specify at least three instance types.
// If you specify one or two instance types, or specify variations of a single
// instance type (for example, an m3.xlarge with and without instance storage), the
// returned placement score will always be low. If you specify InstanceTypes, you
// can't specify InstanceRequirementsWithMetadata.
InstanceTypes []string
// The maximum number of results to return in a single call. Specify a value
// between 1 and
1000. The default value is 1000. To retrieve the remaining
// results, make another call with
the returned NextToken value.
MaxResults *int32
// The token for the next set of results.
NextToken *string
// The Regions used to narrow down the list of Regions to be scored. Enter the
// Region code, for example, us-east-1.
RegionNames []string
// Specify true so that the response returns a list of scored Availability Zones.
// Otherwise, the response returns a list of scored Regions. A list of scored
// Availability Zones is useful if you want to launch all of your Spot capacity
// into a single Availability Zone.
SingleAvailabilityZone *bool
// The unit for the target capacity. Default: units (translates to number of
// instances)
TargetCapacityUnitType types.TargetCapacityUnitType
noSmithyDocumentSerde
}
type GetSpotPlacementScoresOutput struct {
// The token for the next set of results.
NextToken *string
// The Spot placement score for the top 10 Regions or Availability Zones, scored on
// a scale from 1 to 10. Each score
reflects how likely it is that each Region or
// Availability Zone will succeed at fulfilling the specified target capacity
at
// the time of the Spot placement score request. A score of 10 means that your Spot
// capacity request is highly likely to succeed in that Region or Availability
// Zone. If you request a Spot placement score for Regions, a high score assumes
// that your fleet request will be configured to use all Availability Zones and the
// capacity-optimized allocation strategy. If you request a Spot placement score
// for Availability Zones, a high score assumes that your fleet request will be
// configured to use a single Availability Zone and the capacity-optimized
// allocation strategy. Different
Regions or Availability Zones might return the
// same score. The Spot placement score serves as a recommendation only. No score
// guarantees that your Spot request will be fully or partially fulfilled.
SpotPlacementScores []types.SpotPlacementScore
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationGetSpotPlacementScoresMiddlewares(stack *middleware.Stack, options Options) (err error) {
err = stack.Serialize.Add(&awsEc2query_serializeOpGetSpotPlacementScores{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsEc2query_deserializeOpGetSpotPlacementScores{}, middleware.After)
if err != nil {
return err
}
if err = addSetLoggerMiddleware(stack, options); err != nil {
return err
}
if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
return err
}
if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
return err
}
if err = addResolveEndpointMiddleware(stack, options); err != nil {
return err
}
if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
return err
}
if err = addRetryMiddlewares(stack, options); err != nil {
return err
}
if err = addHTTPSignerV4Middleware(stack, options); err != nil {
return err
}
if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
return err
}
if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil {
return err
}
if err = addClientUserAgent(stack); err != nil {
return err
}
if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = addOpGetSpotPlacementScoresValidationMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opGetSpotPlacementScores(options.Region), middleware.Before); err != nil {
return err
}
if err = addRequestIDRetrieverMiddleware(stack); err != nil {
return err
}
if err = addResponseErrorMiddleware(stack); err != nil {
return err
}
if err = addRequestResponseLogging(stack, options); err != nil {
return err
}
return nil
}
// GetSpotPlacementScoresAPIClient is a client that implements the
// GetSpotPlacementScores operation.
type GetSpotPlacementScoresAPIClient interface {
GetSpotPlacementScores(context.Context, *GetSpotPlacementScoresInput, ...func(*Options)) (*GetSpotPlacementScoresOutput, error)
}
var _ GetSpotPlacementScoresAPIClient = (*Client)(nil)
// GetSpotPlacementScoresPaginatorOptions is the paginator options for
// GetSpotPlacementScores
type GetSpotPlacementScoresPaginatorOptions struct {
// The maximum number of results to return in a single call. Specify a value
// between 1 and
1000. The default value is 1000. To retrieve the remaining
// results, make another call with
the returned NextToken value.
Limit int32
// Set to true if pagination should stop if the service returns a pagination token
// that matches the most recent token provided to the service.
StopOnDuplicateToken bool
}
// GetSpotPlacementScoresPaginator is a paginator for GetSpotPlacementScores
type GetSpotPlacementScoresPaginator struct {
options GetSpotPlacementScoresPaginatorOptions
client GetSpotPlacementScoresAPIClient
params *GetSpotPlacementScoresInput
nextToken *string
firstPage bool
}
// NewGetSpotPlacementScoresPaginator returns a new GetSpotPlacementScoresPaginator
func NewGetSpotPlacementScoresPaginator(client GetSpotPlacementScoresAPIClient, params *GetSpotPlacementScoresInput, optFns ...func(*GetSpotPlacementScoresPaginatorOptions)) *GetSpotPlacementScoresPaginator {
if params == nil {
params = &GetSpotPlacementScoresInput{}
}
options := GetSpotPlacementScoresPaginatorOptions{}
if params.MaxResults != nil {
options.Limit = *params.MaxResults
}
for _, fn := range optFns {
fn(&options)
}
return &GetSpotPlacementScoresPaginator{
options: options,
client: client,
params: params,
firstPage: true,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *GetSpotPlacementScoresPaginator) HasMorePages() bool {
return p.firstPage || p.nextToken != nil
}
// NextPage retrieves the next GetSpotPlacementScores page.
func (p *GetSpotPlacementScoresPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*GetSpotPlacementScoresOutput, error) {
if !p.HasMorePages() {
return nil, fmt.Errorf("no more pages available")
}
params := *p.params
params.NextToken = p.nextToken
var limit *int32
if p.options.Limit > 0 {
limit = &p.options.Limit
}
params.MaxResults = limit
result, err := p.client.GetSpotPlacementScores(ctx, ¶ms, optFns...)
if err != nil {
return nil, err
}
p.firstPage = false
prevToken := p.nextToken
p.nextToken = result.NextToken
if p.options.StopOnDuplicateToken && prevToken != nil && p.nextToken != nil && *prevToken == *p.nextToken {
p.nextToken = nil
}
return result, nil
}
func newServiceMetadataMiddleware_opGetSpotPlacementScores(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
SigningName: "ec2",
OperationName: "GetSpotPlacementScores",
}
}