Class Function

sample-apps/ec2-spot/src/ec2spot/Function.cs:17–122

namespace ec2spot
{
    public class Function
    {
        private static AmazonEC2Client ec2Client;

        static Function() {
          AWSSDKHandler.RegisterXRayForAllServices();
          ec2Client = new AmazonEC2Client();
        }

        public async Task<string> FunctionHandler(Dictionary<string, string> input, ILambdaContext context)
        {
          // More AMI IDs: aws.amazon.com/amazon-linux-2/release-notes/
          // us-east-2  HVM  EBS-Backed  64-bit  Amazon Linux 2
          string ami = "ami-09d9edae5eb90d556";
          string sg = "default";
          // docs.aws.amazon.com/sdkfornet/v3/apidocs/items/EC2/TInstanceType.html
          InstanceType type = InstanceType.T3aNano;
          string price = "0.003";
          int count = 1;
          var requestSpotInstances = await RequestSpotInstance(ami, sg, type, price, count);
          var spotRequestId = requestSpotInstances.SpotInstanceRequests[0].SpotInstanceRequestId;
          Console.WriteLine(spotRequestId);

          string instanceId;
          while (true)
          {
            SpotInstanceRequest spotRequest = await GetSpotRequest(spotRequestId);
            Console.WriteLine(spotRequest.State);
            if (spotRequest.State == SpotInstanceState.Active) {
              instanceId = spotRequest.InstanceId;
              break;
            }
          }
          var cancelRequest = CancelSpotRequest(spotRequestId);
          var terminateRequest = TerminateSpotInstance(instanceId);

          await Task.WhenAll(cancelRequest, terminateRequest);

          Console.WriteLine("Complete");
          return spotRequestId;
        }

        public async Task<RequestSpotInstancesResponse> RequestSpotInstance(
          string amiId,
          string securityGroupName,
          InstanceType instanceType,
          string spotPrice,
          int instanceCount)
        {
          var request = new RequestSpotInstancesRequest();

          // https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_RequestSpotLaunchSpecification.html
          var launchSpecification = new LaunchSpecification();
          launchSpecification.ImageId = amiId;
          launchSpecification.InstanceType = instanceType;
          launchSpecification.SecurityGroups.Add(securityGroupName);

          request.SpotPrice = spotPrice;