src

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git clone git://code.dwrz.net/src
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api_op_GetInstanceIdentityDocument.go (3558B)

      1 package imds
      2 
      3 import (
      4 	"context"
      5 	"encoding/json"
      6 	"fmt"
      7 	"io"
      8 	"time"
      9 
     10 	"github.com/aws/smithy-go"
     11 	smithyio "github.com/aws/smithy-go/io"
     12 	"github.com/aws/smithy-go/middleware"
     13 	smithyhttp "github.com/aws/smithy-go/transport/http"
     14 )
     15 
     16 const getInstanceIdentityDocumentPath = getDynamicDataPath + "/instance-identity/document"
     17 
     18 // GetInstanceIdentityDocument retrieves an identity document describing an
     19 // instance. Error is returned if the request fails or is unable to parse
     20 // the response.
     21 func (c *Client) GetInstanceIdentityDocument(
     22 	ctx context.Context, params *GetInstanceIdentityDocumentInput, optFns ...func(*Options),
     23 ) (
     24 	*GetInstanceIdentityDocumentOutput, error,
     25 ) {
     26 	if params == nil {
     27 		params = &GetInstanceIdentityDocumentInput{}
     28 	}
     29 
     30 	result, metadata, err := c.invokeOperation(ctx, "GetInstanceIdentityDocument", params, optFns,
     31 		addGetInstanceIdentityDocumentMiddleware,
     32 	)
     33 	if err != nil {
     34 		return nil, err
     35 	}
     36 
     37 	out := result.(*GetInstanceIdentityDocumentOutput)
     38 	out.ResultMetadata = metadata
     39 	return out, nil
     40 }
     41 
     42 // GetInstanceIdentityDocumentInput provides the input parameters for
     43 // GetInstanceIdentityDocument operation.
     44 type GetInstanceIdentityDocumentInput struct{}
     45 
     46 // GetInstanceIdentityDocumentOutput provides the output parameters for
     47 // GetInstanceIdentityDocument operation.
     48 type GetInstanceIdentityDocumentOutput struct {
     49 	InstanceIdentityDocument
     50 
     51 	ResultMetadata middleware.Metadata
     52 }
     53 
     54 func addGetInstanceIdentityDocumentMiddleware(stack *middleware.Stack, options Options) error {
     55 	return addAPIRequestMiddleware(stack,
     56 		options,
     57 		"GetInstanceIdentityDocument",
     58 		buildGetInstanceIdentityDocumentPath,
     59 		buildGetInstanceIdentityDocumentOutput,
     60 	)
     61 }
     62 
     63 func buildGetInstanceIdentityDocumentPath(params interface{}) (string, error) {
     64 	return getInstanceIdentityDocumentPath, nil
     65 }
     66 
     67 func buildGetInstanceIdentityDocumentOutput(resp *smithyhttp.Response) (v interface{}, err error) {
     68 	defer func() {
     69 		closeErr := resp.Body.Close()
     70 		if err == nil {
     71 			err = closeErr
     72 		} else if closeErr != nil {
     73 			err = fmt.Errorf("response body close error: %v, original error: %w", closeErr, err)
     74 		}
     75 	}()
     76 
     77 	var buff [1024]byte
     78 	ringBuffer := smithyio.NewRingBuffer(buff[:])
     79 	body := io.TeeReader(resp.Body, ringBuffer)
     80 
     81 	output := &GetInstanceIdentityDocumentOutput{}
     82 	if err = json.NewDecoder(body).Decode(&output.InstanceIdentityDocument); err != nil {
     83 		return nil, &smithy.DeserializationError{
     84 			Err:      fmt.Errorf("failed to decode instance identity document, %w", err),
     85 			Snapshot: ringBuffer.Bytes(),
     86 		}
     87 	}
     88 
     89 	return output, nil
     90 }
     91 
     92 // InstanceIdentityDocument provides the shape for unmarshaling
     93 // an instance identity document
     94 type InstanceIdentityDocument struct {
     95 	DevpayProductCodes      []string  `json:"devpayProductCodes"`
     96 	MarketplaceProductCodes []string  `json:"marketplaceProductCodes"`
     97 	AvailabilityZone        string    `json:"availabilityZone"`
     98 	PrivateIP               string    `json:"privateIp"`
     99 	Version                 string    `json:"version"`
    100 	Region                  string    `json:"region"`
    101 	InstanceID              string    `json:"instanceId"`
    102 	BillingProducts         []string  `json:"billingProducts"`
    103 	InstanceType            string    `json:"instanceType"`
    104 	AccountID               string    `json:"accountId"`
    105 	PendingTime             time.Time `json:"pendingTime"`
    106 	ImageID                 string    `json:"imageId"`
    107 	KernelID                string    `json:"kernelId"`
    108 	RamdiskID               string    `json:"ramdiskId"`
    109 	Architecture            string    `json:"architecture"`
    110 }