wanyuenmei/di: provider/awsSpot.go; 34 LoC

Found a possible issue in [wanyuenmei/di](https://www.github.com/wanyuenmei/di) at [provider/awsSpot.go](https://github.com/wanyuenmei/di/blob/fcac249d8c7296db44a101015482b06055e71d0a/provider/awsSpot.go#L115-L148)

Below is the message reported by the analyzer for this snippet of code. Beware that the analyzer only reports the first issue it finds, so please do not limit your consideration to the contents of the below message.

> reference to count was used in a composite literal at line 136

[Click here to see the code in its original context.](https://github.com/wanyuenmei/di/blob/fcac249d8c7296db44a101015482b06055e71d0a/provider/awsSpot.go#L115-L148)

Click here to show the 34 line(s) of Go which triggered the analyzer.

```go
for br, count := range bootReqMap {
bd := &ec2.BlockDeviceMapping{
DeviceName: aws.String("/dev/sda1"),
Ebs: &ec2.EbsBlockDevice{
DeleteOnTermination: aws.Bool(true),
VolumeSize: aws.Int64(int64(br.diskSize)),
VolumeType: aws.String("gp2"),
},
}

session := clst.getSession(br.region)
cloudConfig64 := base64.StdEncoding.EncodeToString([]byte(br.cfg))
resp, err := session.RequestSpotInstances(&ec2.RequestSpotInstancesInput{
SpotPrice: aws.String(spotPrice),
LaunchSpecification: &ec2.RequestSpotLaunchSpecification{
ImageId: aws.String(amis[br.region]),
InstanceType: aws.String(br.size),
UserData: &cloudConfig64,
SecurityGroups: []*string{&clst.namespace},
BlockDeviceMappings: []*ec2.BlockDeviceMapping{bd},
},
InstanceCount: &count,
})

if err != nil {
return err
}

for _, request := range resp.SpotInstanceRequests {
awsIDs = append(awsIDs, awsID{
spotID: *request.SpotInstanceRequestId,
region: br.region})
}
}

```

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commit ID: fcac249d8c7296db44a101015482b06055e71d0a