// This function gets the state of a single instance and returns the code for it.
func getInstanceState(instanceid string, ec2client *ec2.EC2) (int64, error) {
//Build the struct to hold our instance ID we're requesting
instanceReq := ec2.DescribeInstanceStatusInput{
InstanceIds: []*string{
aws.String(instanceid),
},
}
//Make the request to the API
instanceResp, err := ec2client.DescribeInstanceStatus(&instanceReq)
if err != nil {
return -1, err
}
//We only requested one instance, so we should only get one
if len(instanceResp.InstanceStatuses) != 1 {
return -1, errors.New("The total number of instances did not match the request")
}
//Finally, let's get the code and return it.
instance := instanceResp.InstanceStatuses[0]
return *instance.InstanceState.Code, nil
}
