Exemple #1
0
        public List <Reservation> ListAllInstances()
        {
            var describeInstancesRequest  = new DescribeInstancesRequest();
            var describeInstancesResponse = amazonEc2.DescribeInstances(describeInstancesRequest);

            return(describeInstancesResponse.DescribeInstancesResult.Reservation);
        }
        /// <summary>
        /// Get list of running instances in region for
        /// web service URL in application config
        /// </summary>
        /// <returns></returns>
        static private List <RunningInstance> GetRunningInstances()
        {
            AppConfig.Refresh();
            AmazonEC2Config config = new AmazonEC2Config();

            config.ServiceURL = AppConfig.AWSServiceURL;

            AmazonEC2 ec2 = AWSClientFactory.CreateAmazonEC2Client(
                AppConfig.AWSAccessKey,
                AppConfig.AWSSecretKey,
                config
                );


            //list of running instances
            List <RunningInstance>  runningInstancesList = new List <RunningInstance>();
            DescribeInstancesResult serviceResult;

            if (!string.IsNullOrEmpty(AppConfig.FilterByTag))
            {
                RunningInstance currentInstance           = GetCurrentInstance(ec2);
                String          currentInstancegroupvalue = GetCurrentInstanceGroupValue(currentInstance);
                // ask service for descriptions
                serviceResult =
                    ec2.DescribeInstances(new DescribeInstancesRequest().WithFilter(new Filter().WithName("tag:" + AppConfig.FilterByTag).WithValue(currentInstancegroupvalue))).DescribeInstancesResult;
            }
            else
            {
                serviceResult =
                    ec2.DescribeInstances(new DescribeInstancesRequest()).DescribeInstancesResult;
            }

            if (serviceResult.IsSetReservation())
            {
                //reservation is a group of instances launched from the same console
                List <Reservation> reservationList = serviceResult.Reservation;
                foreach (Reservation reservation in reservationList)
                {
                    if (reservation.IsSetRunningInstance())
                    {
                        //with all instances in reservation
                        //This list contains not only running instances
                        List <RunningInstance> instancesList = reservation.RunningInstance;
                        foreach (RunningInstance instance in instancesList)
                        { //include in result only really running ones
                            if (RUNNING_STATE == instance.InstanceState.Code)
                            {
                                runningInstancesList.Add(instance);
                            }
                        }
                    }
                }
            }

            return(runningInstancesList);
        }
        private RunningInstance GetRunningInstance(AmazonEC2 ec2Client, string instanceId)
        {
            var describeInstancesResponse = ec2Client.DescribeInstances(new DescribeInstancesRequest().WithInstanceId(instanceId));

            return(describeInstancesResponse.DescribeInstancesResult.Reservation[0].RunningInstance.Find(
                       r => r.InstanceId == instanceId));
        }
        private static RunningInstance WaitForInstanceToStartUp(AmazonEC2 ec2Client, string instanceId)
        {
            var describeRequest = new DescribeInstancesRequest()
            {
                InstanceId = new List <string>()
                {
                    instanceId
                }
            };

            for (int tries = 0; tries < 40; tries++)
            {
                Thread.Sleep(10 * 1000);

                var result = ec2Client.DescribeInstances(describeRequest).DescribeInstancesResult;
                if (result.Reservation.Count != 1 && result.Reservation[0].RunningInstance.Count != 1)
                {
                    return(null);
                }

                RunningInstance instance = result.Reservation[0].RunningInstance[0];

                // Return the updated instance object if we're out of pending
                if (!instance.InstanceState.Name.Equals("pending"))
                {
                    return(instance);
                }
            }

            return(null);
        }
Exemple #5
0
        public static bool CheckConnection()
        {
            try
            {
                AmazonEC2 ec2 = AWSClientFactory.CreateAmazonEC2Client(
                    App.Settings.AWSAccessKey,
                    App.Settings.AWSSecretKey,
                    new AmazonEC2Config {
                    ServiceURL = App.Settings.ServiceUrl
                }
                    );

                ec2.DescribeInstances(new DescribeInstancesRequest());

                return(true);
            }
            catch (AmazonEC2Exception ex)
            {
                string message = ex.Message + "\r\n" +
                                 "Response Status Code: " + ex.StatusCode + "\r\n" +
                                 "Error Code: " + ex.ErrorCode + "\r\n" +
                                 "Error Type: " + ex.ErrorType + "\r\n" +
                                 "Request ID: " + ex.RequestId;
                ExceptionDialog.Show(new AmazonEC2Exception(message, ex));
                return(false);
            }
            catch (Exception ex)
            {
                ExceptionDialog.Show(ex);
                return(false);
            }
        }
Exemple #6
0
        public static List <Instance> GetInstances()
        {
            try
            {
                var result = new List <Instance>();

                AmazonEC2 ec2 = AWSClientFactory.CreateAmazonEC2Client(
                    App.Settings.AWSAccessKey,
                    App.Settings.AWSSecretKey,
                    new AmazonEC2Config {
                    ServiceURL = App.Settings.ServiceUrl
                }
                    );

                var ec2Response = ec2.DescribeInstances(new DescribeInstancesRequest());

                foreach (var image in ec2Response.DescribeInstancesResult.Reservation.SelectMany(a => a.RunningInstance))
                {
                    var nameTag = image.Tag.Where(t => t.Key == "Name").FirstOrDefault();
                    var name    = nameTag != null ? nameTag.Value : image.InstanceId;

                    var instance = new Instance()
                    {
                        Id             = image.InstanceId,
                        Name           = name,
                        StateName      = image.InstanceState.Name,
                        State          = (InstatnceStates)image.InstanceState.Code,
                        PublicIp       = image.IpAddress,
                        PrivateIp      = image.PrivateIpAddress,
                        InstanceType   = image.InstanceType,
                        PublicDnsName  = image.PublicDnsName,
                        PrivateDnsName = image.PrivateDnsName
                    };
                    if (!Enum.IsDefined(typeof(InstatnceStates), instance.State))
                    {
                        instance.State = InstatnceStates.Unknown;
                    }
                    result.Add(instance);
                }
                return(result.OrderBy(a => a.Name).ToList());
            }
            catch (AmazonEC2Exception ex)
            {
                string message = ex.Message + "\r\n" +
                                 "Response Status Code: " + ex.StatusCode + "\r\n" +
                                 "Error Code: " + ex.ErrorCode + "\r\n" +
                                 "Error Type: " + ex.ErrorType + "\r\n" +
                                 "Request ID: " + ex.RequestId;
                throw new AmazonEC2Exception(message, ex);
            }
        }
Exemple #7
0
        private void WriteEC2Info()
        {
            StringBuilder             output      = new StringBuilder();
            DescribeInstancesRequest  ec2Request  = new DescribeInstancesRequest();
            DescribeInstancesResponse ec2Response = ec2.DescribeInstances(ec2Request);

            foreach (Reservation reservation in ec2Response.DescribeInstancesResult.Reservation)
            {
                foreach (RunningInstance instance in reservation.RunningInstance)
                {
                    output.AppendFormat("<li>{0}</li>", instance.InstanceId);
                }
            }
            this.ec2Placeholder.Text = output.ToString();
        }
        /// <summary>
        ///  Get current instance
        /// </summary>
        /// <returns>Current instance or NULL if instance not found</returns>
        public static RunningInstance GetCurrentInstance(AmazonEC2 ec2)
        {
            DescribeInstancesResult serviceResult =
                ec2.DescribeInstances(new DescribeInstancesRequest()).DescribeInstancesResult;

            foreach (Reservation reservation in serviceResult.Reservation)
            {
                // these are not only really running ones...
                foreach (RunningInstance instance in reservation.RunningInstance)
                {
                    // deal only with really running instances
                    if (instance.InstanceState.Code == RUNNING_STATE && CheckIpAddress(instance.PrivateIpAddress))
                    {
                        return(instance);
                    }
                }
            }
            return(null);
        }
Exemple #9
0
        public static string GetServiceOutput()
        {
            StringBuilder sb = new StringBuilder(1024);

            using (StringWriter sr = new StringWriter(sb))
            {
                sr.WriteLine("===========================================");
                sr.WriteLine("Welcome to the AWS .NET SDK!");
                sr.WriteLine("===========================================");

                // Print the number of Amazon EC2 instances.
                AmazonEC2 ec2 = AWSClientFactory.CreateAmazonEC2Client();
                DescribeInstancesRequest ec2Request = new DescribeInstancesRequest();

                try
                {
                    DescribeInstancesResponse ec2Response = ec2.DescribeInstances(ec2Request);
                    int numInstances = 0;
                    numInstances = ec2Response.DescribeInstancesResult.Reservation.Count;
                    sr.WriteLine("You have " + numInstances + " Amazon EC2 instance(s) running in the US-East (Northern Virginia) region.");
                }
                catch (AmazonEC2Exception ex)
                {
                    if (ex.ErrorCode != null && ex.ErrorCode.Equals("AuthFailure"))
                    {
                        sr.WriteLine("The account you are using is not signed up for Amazon EC2.");
                        sr.WriteLine("You can sign up for Amazon EC2 at http://aws.amazon.com/ec2");
                    }
                    else
                    {
                        sr.WriteLine("Caught Exception: " + ex.Message);
                        sr.WriteLine("Response Status Code: " + ex.StatusCode);
                        sr.WriteLine("Error Code: " + ex.ErrorCode);
                        sr.WriteLine("Error Type: " + ex.ErrorType);
                        sr.WriteLine("Request ID: " + ex.RequestId);
                        sr.WriteLine("XML: " + ex.XML);
                    }
                }
                sr.WriteLine();

                // Print the number of Amazon SimpleDB domains.
                AmazonSimpleDB     sdb        = AWSClientFactory.CreateAmazonSimpleDBClient();
                ListDomainsRequest sdbRequest = new ListDomainsRequest();

                try
                {
                    ListDomainsResponse sdbResponse = sdb.ListDomains(sdbRequest);

                    if (sdbResponse.IsSetListDomainsResult())
                    {
                        int numDomains = 0;
                        numDomains = sdbResponse.ListDomainsResult.DomainName.Count;
                        sr.WriteLine("You have " + numDomains + " Amazon SimpleDB domain(s) in the US-East (Northern Virginia) region.");
                    }
                }
                catch (AmazonSimpleDBException ex)
                {
                    if (ex.ErrorCode != null && ex.ErrorCode.Equals("AuthFailure"))
                    {
                        sr.WriteLine("The account you are using is not signed up for Amazon SimpleDB.");
                        sr.WriteLine("You can sign up for Amazon SimpleDB at http://aws.amazon.com/simpledb");
                    }
                    else
                    {
                        sr.WriteLine("Caught Exception: " + ex.Message);
                        sr.WriteLine("Response Status Code: " + ex.StatusCode);
                        sr.WriteLine("Error Code: " + ex.ErrorCode);
                        sr.WriteLine("Error Type: " + ex.ErrorType);
                        sr.WriteLine("Request ID: " + ex.RequestId);
                        sr.WriteLine("XML: " + ex.XML);
                    }
                }
                sr.WriteLine();

                // Print the number of Amazon S3 Buckets.
                AmazonS3 s3Client = AWSClientFactory.CreateAmazonS3Client();

                try
                {
                    ListBucketsResponse response = s3Client.ListBuckets();
                    int numBuckets = 0;
                    if (response.Buckets != null &&
                        response.Buckets.Count > 0)
                    {
                        numBuckets = response.Buckets.Count;
                    }
                    sr.WriteLine("You have " + numBuckets + " Amazon S3 bucket(s) in the US Standard region.");
                }
                catch (AmazonS3Exception ex)
                {
                    if (ex.ErrorCode != null && (ex.ErrorCode.Equals("InvalidAccessKeyId") ||
                                                 ex.ErrorCode.Equals("InvalidSecurity")))
                    {
                        sr.WriteLine("Please check the provided AWS Credentials.");
                        sr.WriteLine("If you haven't signed up for Amazon S3, please visit http://aws.amazon.com/s3");
                    }
                    else
                    {
                        sr.WriteLine("Caught Exception: " + ex.Message);
                        sr.WriteLine("Response Status Code: " + ex.StatusCode);
                        sr.WriteLine("Error Code: " + ex.ErrorCode);
                        sr.WriteLine("Request ID: " + ex.RequestId);
                        sr.WriteLine("XML: " + ex.XML);
                    }
                }
                sr.WriteLine("Press any key to continue...");
            }
            return(sb.ToString());
        }
        /// <summary>
        /// This method will look up the current VPC NAT ami in the region and create an instance in the subnet specified.
        /// </summary>
        /// <param name="ec2Client">The ec2client used to create the NAT instance</param>
        /// <param name="request">The properties used to launch the NAT instance.</param>
        /// <returns></returns>
        public static RunningInstance LaunchNATInstance(AmazonEC2 ec2Client, LaunchNATInstanceRequest request)
        {
            if (ec2Client == null)
            {
                throw new ArgumentNullException("ec2Client");
            }
            if (request == null)
            {
                throw new ArgumentNullException("request");
            }
            if (string.IsNullOrEmpty(request.SubnetId))
            {
                throw new ArgumentNullException("request.SubnetId");
            }
            if (string.IsNullOrEmpty(request.InstanceType))
            {
                throw new ArgumentNullException("request.InstanceType");
            }

            List <Filter> filters = new List <Filter>()
            {
                new Filter()
                {
                    Name = "architecture", Value = new List <string>()
                    {
                        "x86_64"
                    }
                },
                new Filter()
                {
                    Name = "name", Value = new List <string>()
                    {
                        "ami-vpc-nat-*.x86_64-ebs"
                    }
                }
            };
            DescribeImagesResponse imageResponse = ec2Client.DescribeImages(new DescribeImagesRequest()
            {
                Filter = filters
            });
            var image = ImageUtilities.FindImage(ec2Client, ImageUtilities.VPC_NAT);

            if (image == null)
            {
                throw new AmazonEC2Exception("No NAT image found in this region");
            }

            RunInstancesRequest runRequest = new RunInstancesRequest()
            {
                InstanceType = request.InstanceType,
                KeyName      = request.KeyName,
                ImageId      = image.ImageId,
                MinCount     = 1,
                MaxCount     = 1,
                SubnetId     = request.SubnetId
            };
            RunInstancesResponse runResponse = ec2Client.RunInstances(runRequest);
            string instanceId = runResponse.RunInstancesResult.Reservation.RunningInstance[0].InstanceId;

            // Can't associated elastic IP address until the instance is available
            WaitForInstanceToStartUp(ec2Client, instanceId);

            ModifyInstanceAttributeRequest modifyRequest = new ModifyInstanceAttributeRequest()
            {
                InstanceId = instanceId,
                Attribute  = "sourceDestCheck",
                Value      = "false"
            };

            ec2Client.ModifyInstanceAttribute(modifyRequest);

            ec2Client.CreateTags(new CreateTagsRequest()
            {
                ResourceId = new List <string>()
                {
                    instanceId
                },
                Tag = new List <Tag>()
                {
                    new Tag()
                    {
                        Key = "Name", Value = "NAT"
                    }
                }
            });

            var allocationId = ec2Client.AllocateAddress(new AllocateAddressRequest()
            {
                Domain = "vpc"
            }).AllocateAddressResult.AllocationId;

            ec2Client.AssociateAddress(new AssociateAddressRequest()
            {
                InstanceId = instanceId, AllocationId = allocationId
            });

            var instance = ec2Client.DescribeInstances(new DescribeInstancesRequest()
            {
                InstanceId = new List <string>()
                {
                    instanceId
                }
            }).DescribeInstancesResult.Reservation[0].RunningInstance[0];

            return(instance);
        }
        /// <summary>
        /// This method will look up the current VPC NAT ami in the region and create an instance in the subnet specified.
        /// </summary>
        /// <param name="ec2Client">The ec2client used to create the NAT instance</param>
        /// <param name="request">The properties used to launch the NAT instance.</param>
        /// <returns></returns>
        public static RunningInstance LaunchNATInstance(AmazonEC2 ec2Client, LaunchNATInstanceRequest request)
        {
            if (ec2Client == null)
                throw new ArgumentNullException("ec2Client");
            if (request == null)
                throw new ArgumentNullException("request");
            if (string.IsNullOrEmpty(request.SubnetId))
                throw new ArgumentNullException("request.SubnetId");
            if (string.IsNullOrEmpty(request.InstanceType))
                throw new ArgumentNullException("request.InstanceType");

            List<Filter> filters = new List<Filter>()
            {
                new Filter(){Name = "architecture", Value = new List<string>(){"x86_64"}},
                new Filter(){Name = "name", Value = new List<string>(){"ami-vpc-nat-*.x86_64-ebs"}}
            };
            DescribeImagesResponse imageResponse = ec2Client.DescribeImages(new DescribeImagesRequest() { Filter = filters });
            var image = ImageUtilities.FindImage(ec2Client, ImageUtilities.VPC_NAT);
            if (image == null)
            {
                throw new AmazonEC2Exception("No NAT image found in this region");
            }

            RunInstancesRequest runRequest = new RunInstancesRequest()
            {
                InstanceType = request.InstanceType,
                KeyName = request.KeyName,
                ImageId = image.ImageId,
                MinCount = 1,
                MaxCount = 1,
                SubnetId = request.SubnetId
            };
            RunInstancesResponse runResponse = ec2Client.RunInstances(runRequest);
            string instanceId = runResponse.RunInstancesResult.Reservation.RunningInstance[0].InstanceId;
            // Can't associated elastic IP address until the instance is available
            WaitForInstanceToStartUp(ec2Client, instanceId);

            ModifyInstanceAttributeRequest modifyRequest = new ModifyInstanceAttributeRequest()
            {
                InstanceId = instanceId,
                Attribute = "sourceDestCheck",
                Value = "false"
            };
            ec2Client.ModifyInstanceAttribute(modifyRequest);

            ec2Client.CreateTags(new CreateTagsRequest()
            {
                ResourceId = new List<string>() { instanceId },
                Tag = new List<Tag>() { new Tag() { Key = "Name", Value = "NAT" } }
            });

            var allocationId = ec2Client.AllocateAddress(new AllocateAddressRequest() { Domain = "vpc" }).AllocateAddressResult.AllocationId;
            ec2Client.AssociateAddress(new AssociateAddressRequest() { InstanceId = instanceId, AllocationId = allocationId });

            var instance = ec2Client.DescribeInstances(new DescribeInstancesRequest() { InstanceId = new List<string>() { instanceId } }).DescribeInstancesResult.Reservation[0].RunningInstance[0];

            return instance;
        }
        private static RunningInstance WaitForInstanceToStartUp(AmazonEC2 ec2Client, string instanceId)
        {
            var describeRequest = new DescribeInstancesRequest() { InstanceId = new List<string>() { instanceId } };
            for (int tries = 0; tries < 40; tries++)
            {
                Thread.Sleep(10 * 1000);

                var result = ec2Client.DescribeInstances(describeRequest).DescribeInstancesResult;
                if (result.Reservation.Count != 1 && result.Reservation[0].RunningInstance.Count != 1)
                    return null;

                RunningInstance instance = result.Reservation[0].RunningInstance[0];

                // Return the updated instance object if we're out of pending
                if (!instance.InstanceState.Name.Equals("pending"))
                {
                    return instance;
                }
            }

            return null;
        }
 private RunningInstance GetRunningInstance(AmazonEC2 ec2Client, string instanceId)
 {
     var describeInstancesResponse = ec2Client.DescribeInstances(new DescribeInstancesRequest().WithInstanceId(instanceId));
     return describeInstancesResponse.DescribeInstancesResult.Reservation[0].RunningInstance.Find(
         r => r.InstanceId == instanceId);
 }
Exemple #14
0
        public List <CEc2Instance> describeInstances()
        {
            List <CEc2Instance> myInstances = new List <CEc2Instance>();

            try
            {
                DescribeInstancesRequest  request  = new DescribeInstancesRequest();
                DescribeInstancesResponse response = _service.DescribeInstances(request);
                if (response.IsSetDescribeInstancesResult())
                {
                    DescribeInstancesResult describeInstancesResult = response.DescribeInstancesResult;
                    List <Reservation>      reservationList         = describeInstancesResult.Reservation;


                    foreach (Reservation reservation in reservationList)
                    {
                        List <RunningInstance> runningInstanceList = reservation.RunningInstance;
                        foreach (RunningInstance runningInstance in runningInstanceList)
                        {
                            CEc2Instance inst = new CEc2Instance();

                            if (runningInstance.IsSetInstanceId())
                            {
                                inst.instanceId = runningInstance.InstanceId;
                            }
                            if (runningInstance.IsSetImageId())
                            {
                                inst.imageId = runningInstance.ImageId;
                            }
                            if (runningInstance.IsSetInstanceState())
                            {
                                InstanceState instanceState = runningInstance.InstanceState;
                                if (instanceState.IsSetName())
                                {
                                    inst.status = instanceState.Name;
                                }
                            }
                            if (runningInstance.IsSetPublicDnsName())
                            {
                                inst.publicDns = runningInstance.PublicDnsName;
                            }
                            if (runningInstance.IsSetKeyName())
                            {
                                inst.keyPairName = runningInstance.KeyName;
                            }
                            if (runningInstance.IsSetInstanceType())
                            {
                                inst.type = runningInstance.InstanceType;
                            }
                            if (runningInstance.IsSetLaunchTime())
                            {
                                inst.launchTime = runningInstance.LaunchTime;
                            }
                            if (runningInstance.IsSetPlacement())
                            {
                                if (runningInstance.Placement.IsSetAvailabilityZone())
                                {
                                    inst.zone = runningInstance.Placement.AvailabilityZone;
                                }
                            }
                            if (runningInstance.IsSetPlatform())
                            {
                                inst.platform = runningInstance.Platform;
                            }

                            myInstances.Add(inst);
                        }
                    }
                }
            }
            catch (AmazonEC2Exception ex)
            {
                throw new Exception("Caught Exception: " + ex.XML);
            }
            return(myInstances);
        }
Exemple #15
0
        public void launch()
        {
            //instance started.
            if (string.IsNullOrEmpty(_instanceId) == false)
            {
                return;
            }

            try
            {
                RunInstancesRequest request = new RunInstancesRequest();

                request.ImageId  = _amiId;
                request.MinCount = 1;
                request.MaxCount = 1;

                if (_defaultSecurityGroup == false)
                {
                    request.SecurityGroup.Add(_securityGroups);
                }
                else
                {
                    if (securitryGroupExistOnServer() == false)
                    {
                        createSecurityGroup();
                    }
                    request.SecurityGroup.Add(_securityGroups);
                }

                string keyPath = CAwsConfig.Instance.getKeyFilePath(_keyPairName);
                if (string.IsNullOrEmpty(keyPath) == true ||
                    File.Exists(keyPath) == false)
                {
                    if (keyExistOnServer() == false)
                    {
                        createKayPair();
                    }
                }
                request.KeyName = _keyPairName;

                RunInstancesResponse response = _service.RunInstances(request);
                if (response.IsSetRunInstancesResult())
                {
                    RunInstancesResult runInstancesResult = response.RunInstancesResult;
                    if (runInstancesResult.IsSetReservation())
                    {
                        if (runInstancesResult.Reservation.RunningInstance[0].IsSetInstanceId())
                        {
                            _instanceId = runInstancesResult.Reservation.RunningInstance[0].InstanceId;
                        }
                        if (runInstancesResult.Reservation.RunningInstance[0].IsSetPublicDnsName())
                        {
                            _publicDns = runInstancesResult.Reservation.RunningInstance[0].PublicDnsName;
                        }
                    }
                }

                if (string.IsNullOrEmpty(_instanceId) == true)
                {
                    throw new Exception("No instance id is returned.");
                }

                //return after the instance started up
                bool pending = true;
                while (pending == true)
                {
                    System.Threading.Thread.Sleep(5 * 1000);

                    DescribeInstancesRequest describeRequest = new DescribeInstancesRequest();
                    describeRequest.InstanceId.Add(_instanceId);
                    DescribeInstancesResponse describeResponse = _service.DescribeInstances(describeRequest);
                    DescribeInstancesResult   describeResult   = describeResponse.DescribeInstancesResult;

                    if (describeResult.Reservation.Count != 1)
                    {
                        throw new Exception("more than one instance with the same id");
                    }
                    if (describeResult.Reservation[0].RunningInstance.Count != 1)
                    {
                        throw new Exception("more than one running instance has the same id");
                    }

                    pending = describeResult.Reservation[0].RunningInstance[0].InstanceState.Name != "running";
                }
            }
            catch (AmazonEC2Exception ex)
            {
                throw new Exception("Caught Exception: " + ex.XML);
            }
        }
        /// <summary>
        /// The DescribeInstances operation returns information about instances that you
        /// own.
        /// If you specify one or more instance IDs, Amazon EC2 returns information for
        /// those instances. If you do not specify instance IDs, Amazon EC2 returns
        /// information for all relevant instances. If you specify an invalid instance ID,
        /// a fault is returned. If you specify an instance that you do not own, it will
        /// not be included in the returned results.
        /// Recently terminated instances might appear in the returned results. This
        /// interval is usually less than one hour.
        /// 
        /// </summary>
        /// <param name="service">Instance of AmazonEC2 service</param>
        /// <param name="request">DescribeInstancesRequest request</param>
        public static void InvokeDescribeInstances(AmazonEC2 service, DescribeInstancesRequest request)
        {
            try 
            {
                DescribeInstancesResponse response = service.DescribeInstances(request);
                
                
                Console.WriteLine ("Service Response");
                Console.WriteLine ("=============================================================================");
                Console.WriteLine ();

                Console.WriteLine("        DescribeInstancesResponse");
                if (response.IsSetResponseMetadata())
                {
                    Console.WriteLine("            ResponseMetadata");
                    ResponseMetadata  responseMetadata = response.ResponseMetadata;
                    if (responseMetadata.IsSetRequestId())
                    {
                        Console.WriteLine("                RequestId");
                        Console.WriteLine("                    {0}", responseMetadata.RequestId);
                    }
                }
                if (response.IsSetDescribeInstancesResult())
                {
                    Console.WriteLine("            DescribeInstancesResult");
                    DescribeInstancesResult  describeInstancesResult = response.DescribeInstancesResult;
                    List<Reservation> reservationList = describeInstancesResult.Reservation;
                    foreach (Reservation reservation in reservationList)
                    {
                        Console.WriteLine("                Reservation");
                        if (reservation.IsSetReservationId())
                        {
                            Console.WriteLine("                    ReservationId");
                            Console.WriteLine("                        {0}", reservation.ReservationId);
                        }
                        if (reservation.IsSetOwnerId())
                        {
                            Console.WriteLine("                    OwnerId");
                            Console.WriteLine("                        {0}", reservation.OwnerId);
                        }
                        if (reservation.IsSetRequesterId())
                        {
                            Console.WriteLine("                    RequesterId");
                            Console.WriteLine("                        {0}", reservation.RequesterId);
                        }
                        List<String> groupNameList  =  reservation.GroupName;
                        foreach (String groupName in groupNameList)
                        {
                            Console.WriteLine("                    GroupName");
                            Console.WriteLine("                        {0}", groupName);
                        }
                        List<RunningInstance> runningInstanceList = reservation.RunningInstance;
                        foreach (RunningInstance runningInstance in runningInstanceList)
                        {
                            Console.WriteLine("                    RunningInstance");
                            if (runningInstance.IsSetInstanceId())
                            {
                                Console.WriteLine("                        InstanceId");
                                Console.WriteLine("                            {0}", runningInstance.InstanceId);
                            }
                            if (runningInstance.IsSetImageId())
                            {
                                Console.WriteLine("                        ImageId");
                                Console.WriteLine("                            {0}", runningInstance.ImageId);
                            }
                            if (runningInstance.IsSetInstanceState())
                            {
                                Console.WriteLine("                        InstanceState");
                                InstanceState  instanceState = runningInstance.InstanceState;
                                if (instanceState.IsSetCode())
                                {
                                    Console.WriteLine("                            Code");
                                    Console.WriteLine("                                {0}", instanceState.Code);
                                }
                                if (instanceState.IsSetName())
                                {
                                    Console.WriteLine("                            Name");
                                    Console.WriteLine("                                {0}", instanceState.Name);
                                }
                            }
                            if (runningInstance.IsSetPrivateDnsName())
                            {
                                Console.WriteLine("                        PrivateDnsName");
                                Console.WriteLine("                            {0}", runningInstance.PrivateDnsName);
                            }
                            if (runningInstance.IsSetPublicDnsName())
                            {
                                Console.WriteLine("                        PublicDnsName");
                                Console.WriteLine("                            {0}", runningInstance.PublicDnsName);
                            }
                            if (runningInstance.IsSetStateTransitionReason())
                            {
                                Console.WriteLine("                        StateTransitionReason");
                                Console.WriteLine("                            {0}", runningInstance.StateTransitionReason);
                            }
                            if (runningInstance.IsSetKeyName())
                            {
                                Console.WriteLine("                        KeyName");
                                Console.WriteLine("                            {0}", runningInstance.KeyName);
                            }
                            if (runningInstance.IsSetAmiLaunchIndex())
                            {
                                Console.WriteLine("                        AmiLaunchIndex");
                                Console.WriteLine("                            {0}", runningInstance.AmiLaunchIndex);
                            }
                            List<String> productCodeList  =  runningInstance.ProductCode;
                            foreach (String productCode in productCodeList)
                            {
                                Console.WriteLine("                        ProductCode");
                                Console.WriteLine("                            {0}", productCode);
                            }
                            if (runningInstance.IsSetInstanceType())
                            {
                                Console.WriteLine("                        InstanceType");
                                Console.WriteLine("                            {0}", runningInstance.InstanceType);
                            }
                            if (runningInstance.IsSetLaunchTime())
                            {
                                Console.WriteLine("                        LaunchTime");
                                Console.WriteLine("                            {0}", runningInstance.LaunchTime);
                            }
                            if (runningInstance.IsSetPlacement())
                            {
                                Console.WriteLine("                        Placement");
                                Placement  placement = runningInstance.Placement;
                                if (placement.IsSetAvailabilityZone())
                                {
                                    Console.WriteLine("                            AvailabilityZone");
                                    Console.WriteLine("                                {0}", placement.AvailabilityZone);
                                }
                            }
                            if (runningInstance.IsSetKernelId())
                            {
                                Console.WriteLine("                        KernelId");
                                Console.WriteLine("                            {0}", runningInstance.KernelId);
                            }
                            if (runningInstance.IsSetRamdiskId())
                            {
                                Console.WriteLine("                        RamdiskId");
                                Console.WriteLine("                            {0}", runningInstance.RamdiskId);
                            }
                            if (runningInstance.IsSetPlatform())
                            {
                                Console.WriteLine("                        Platform");
                                Console.WriteLine("                            {0}", runningInstance.Platform);
                            }
                        }
                    }
                }

            } 
            catch (AmazonEC2Exception ex) 
            {
                Console.WriteLine("Caught Exception: " + ex.Message);
                Console.WriteLine("Response Status Code: " + ex.StatusCode);
                Console.WriteLine("Error Code: " + ex.ErrorCode);
                Console.WriteLine("Error Type: " + ex.ErrorType);
                Console.WriteLine("Request ID: " + ex.RequestId);
                Console.WriteLine("XML: " + ex.XML);
            }
        }