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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/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] in the Amazon EC2 User Guide.
//
// [Spot placement score]: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/spot-placement-score.html
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 items to return for this request. To get the next page of
// items, make another request with the token returned in the output. For more
// information, see [Pagination].
//
// [Pagination]: https://docs.aws.amazon.com/AWSEC2/latest/APIReference/Query-Requests.html#api-pagination
MaxResults *int32
// The token returned from a previous paginated request. Pagination continues from
// the end of the items returned by the previous request.
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.
TargetCapacityUnitType types.TargetCapacityUnitType
noSmithyDocumentSerde
}
type GetSpotPlacementScoresOutput struct {
// The token to include in another request to get the next page of items. This
// value is null when there are no more items to return.
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) {
if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
return err
}
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 := addProtocolFinalizerMiddlewares(stack, options, "GetSpotPlacementScores"); err != nil {
return fmt.Errorf("add protocol finalizers: %v", err)
}
if err = addlegacyEndpointContextSetter(stack, options); err != nil {
return err
}
if err = addSetLoggerMiddleware(stack, options); err != nil {
return err
}
if err = addClientRequestID(stack); err != nil {
return err
}
if err = addComputeContentLength(stack); err != nil {
return err
}
if err = addResolveEndpointMiddleware(stack, options); err != nil {
return err
}
if err = addComputePayloadSHA256(stack); err != nil {
return err
}
if err = addRetry(stack, options); err != nil {
return err
}
if err = addRawResponseToMetadata(stack); err != nil {
return err
}
if err = addRecordResponseTiming(stack); err != nil {
return err
}
if err = addClientUserAgent(stack, options); err != nil {
return err
}
if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = addSetLegacyContextSigningOptionsMiddleware(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 = addRecursionDetection(stack); 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
}
if err = addDisableHTTPSMiddleware(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 items to return for this request. To get the next page of
// items, make another request with the token returned in the output. For more
// information, see [Pagination].
//
// [Pagination]: https://docs.aws.amazon.com/AWSEC2/latest/APIReference/Query-Requests.html#api-pagination
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,
nextToken: params.NextToken,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *GetSpotPlacementScoresPaginator) HasMorePages() bool {
return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}
// 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,
OperationName: "GetSpotPlacementScores",
}
}