/// <summary>
/// This function creates a spot instance request inside a VPC. It returns the request ID if successful, or sets the error
/// code and message otherwise
/// </summary>
/// <param name="AvailabilityZone">Name of the Availability Zone where the instances will be launched</param>
/// <param name="AMI_ID">Id of the AMI that will be used as a base for the instances</param>
/// <param name="SecurityGroupId">The name of the security group to be assigned to the instance(s)</param>
/// <param name="KeyPairName">The name of the keypair to be assigned to the instance(s)</param>
/// <param name="InstanceType">The type of the instance(s)</param>
/// <param name="InstancePrice">The max price to pay for the instance(s)</param>
/// <param name="InstanceCount">The number of instances to be launched</param>
/// <param name="UserData">The user-data script that will be run as the instance(s) is(are) initialized</param>
/// <returns>The list of Request Ids if successful</returns>
public List<string> RequestClassicSpotInstances(string AvailabilityZone, string AMI_ID, string SecurityGroupId, string KeyPairName, string InstanceType, double InstancePrice, int InstanceCount = 1, string UserData = "")
{
List<string> RequestIds = new List<string> ();
// Initialize error values
ErrorCode = 0;
ErrorMessage = "";
// Create the list with security groups
List<string> SecurityGroups = new List<string> () { SecurityGroupId };
// Create placement object
SpotPlacement spotPlacement = new SpotPlacement ()
{
AvailabilityZone = AvailabilityZone
};
// Create the launch specification
LaunchSpecification launchSpecification = new LaunchSpecification ()
{
ImageId = AMI_ID,
InstanceType = InstanceType,
KeyName = KeyPairName,
SecurityGroups = SecurityGroups,
Placement = spotPlacement,
UserData = Gadgets.Base64Encode (UserData)
};
// Create the request object
RequestSpotInstancesRequest spotRequest = new RequestSpotInstancesRequest ()
{
SpotPrice = InstancePrice.ToString (),
InstanceCount = InstanceCount,
LaunchSpecification = launchSpecification
};
// Request the instances
try
{
var spotResponse = EC2client.RequestSpotInstances (spotRequest);
// Check response for errors
if (spotResponse.HttpStatusCode != HttpStatusCode.OK)
{
ErrorCode = Convert.ToInt32 (spotResponse.HttpStatusCode);
ErrorMessage = "Http Error [" + spotResponse.HttpStatusCode.ToString () + "]";
}
else
{
foreach (SpotInstanceRequest request in spotResponse.SpotInstanceRequests)
{
RequestIds.Add (request.SpotInstanceRequestId);
}
}
}
catch (Exception ex)
{
ErrorCode = -1;
ErrorMessage = ex.Message + "::" + ex.InnerException;
}
return RequestIds;
}
