Golang EC2.DescribeSpotInstanceRequests方法代码示例

// SpotInstanceStateRefreshFunc returns a resource.StateRefreshFunc that is used to watch
// an EC2 spot instance request
func SpotInstanceStateRefreshFunc(
	conn *ec2.EC2, sir ec2.SpotInstanceRequest) resource.StateRefreshFunc {

	return func() (interface{}, string, error) {
		resp, err := conn.DescribeSpotInstanceRequests(&ec2.DescribeSpotInstanceRequestsInput{
			SpotInstanceRequestIDs: []*string{sir.SpotInstanceRequestID},
		})

		if err != nil {
			if ec2err, ok := err.(awserr.Error); ok && ec2err.Code() == "InvalidSpotInstanceRequestID.NotFound" {
				// Set this to nil as if we didn't find anything.
				resp = nil
			} else {
				log.Printf("Error on StateRefresh: %s", err)
				return nil, "", err
			}
		}

		if resp == nil || len(resp.SpotInstanceRequests) == 0 {
			// Sometimes AWS just has consistency issues and doesn't see
			// our request yet. Return an empty state.
			return nil, "", nil
		}

		req := resp.SpotInstanceRequests[0]
		return req, *req.Status.Code, nil
	}
}

// SpotRequestStateRefreshFunc returns a StateRefreshFunc that is used to watch
// a spot request for state changes.
func SpotRequestStateRefreshFunc(conn *ec2.EC2, spotRequestId string) StateRefreshFunc {
	return func() (interface{}, string, error) {
		resp, err := conn.DescribeSpotInstanceRequests(&ec2.DescribeSpotInstanceRequestsInput{
			SpotInstanceRequestIDs: []*string{&spotRequestId},
		})

		if err != nil {
			if ec2err, ok := err.(awserr.Error); ok && ec2err.Code() == "InvalidSpotInstanceRequestID.NotFound" {
				// Set this to nil as if we didn't find anything.
				resp = nil
			} else if isTransientNetworkError(err) {
				// Transient network error, treat it as if we didn't find anything
				resp = nil
			} else {
				log.Printf("Error on SpotRequestStateRefresh: %s", err)
				return nil, "", err
			}
		}

		if resp == nil || len(resp.SpotInstanceRequests) == 0 {
			// Sometimes AWS has consistency issues and doesn't see the
			// SpotRequest. Return an empty state.
			return nil, "", nil
		}

		i := resp.SpotInstanceRequests[0]
		return i, *i.State, nil
	}
}

// Describes all available Spot instance requests for the user
// Other input parameters can be configured by uncommenting the appropriate portion of the code
func (p *Parameters) DescribeSpotInstanceRequests(svc *ec2.EC2) (string, error) {
	//	paramsforReq := &ec2.DescribeSpotInstanceRequestsInput{
	//		DryRun: aws.Bool(true),
	//		Filters: []*ec2.Filter{
	//			{ // Required
	//				Name: aws.String("String"),
	//				Values: []*string{
	//					aws.String("String"), // Required
	//					// More values...
	//				},
	//			},
	//			// More values...
	//		},
	//		SpotInstanceRequestIds: []*string{
	//			aws.String("String"), // Required
	//			// More values...
	//		},
	//	}
	resp, err := svc.DescribeSpotInstanceRequests(nil)

	if err != nil {
		return "", err
	}
	return fmt.Sprintln(resp), nil
}