Added support for the force option for the EC2 instance terminate command. This feature enables customers to recover resources associated with an instance stuck in the shutting-down state as a result of rare issues caused by a frozen operating system or an underlying hardware problem.

Author: aws-sdk-dotnet-automation

generator/ServiceModels/ec2/ec2-2016-11-15.api.json

@@ -48304,6 +48304,7 @@
           "shape":"InstanceIdStringList",
           "locationName":"InstanceId"
         },
+        "Force":{"shape":"Boolean"},
         "SkipOsShutdown":{"shape":"Boolean"},
         "DryRun":{
           "shape":"Boolean",

generator/ServiceModels/ec2/ec2-2016-11-15.docs.json

@@ -3201,6 +3201,7 @@
         "Subnet$DefaultForAz": "<p>Indicates whether this is the default subnet for the Availability Zone.</p>",
         "Subnet$MapPublicIpOnLaunch": "<p>Indicates whether instances launched in this subnet receive a public IPv4 address.</p> <p>Amazon Web Services charges for all public IPv4 addresses, including public IPv4 addresses associated with running instances and Elastic IP addresses. For more information, see the <i>Public IPv4 Address</i> tab on the <a href=\"http://aws.amazon.com/vpc/pricing/\">Amazon VPC pricing page</a>.</p>",
         "TerminateClientVpnConnectionsRequest$DryRun": "<p>Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is <code>DryRunOperation</code>. Otherwise, it is <code>UnauthorizedOperation</code>.</p>",
+        "TerminateInstancesRequest$Force": "<p>Forces the instances to terminate. The instance will first attempt a graceful shutdown, which includes flushing file system caches and metadata. If the graceful shutdown fails to complete within the timeout period, the instance shuts down forcibly without flushing the file system caches and metadata.</p>",
         "TerminateInstancesRequest$SkipOsShutdown": "<p>Specifies whether to bypass the graceful OS shutdown process when the instance is terminated.</p> <p>Default: <code>false</code> </p>",
         "TerminateInstancesRequest$DryRun": "<p>Checks whether you have the required permissions for the operation, without actually making the request, and provides an error response. If you have the required permissions, the error response is <code>DryRunOperation</code>. Otherwise, it is <code>UnauthorizedOperation</code>.</p>",
         "TransitGatewayMulticastGroup$GroupMember": "<p>Indicates that the resource is a transit gateway multicast group member.</p>",

generator/ServiceModels/ec2/ec2-2016-11-15.normal.json

@@ -62819,6 +62819,10 @@
           "documentation":"<p>The IDs of the instances.</p> <p>Constraints: Up to 1000 instance IDs. We recommend breaking up this request into smaller batches.</p>",
           "locationName":"InstanceId"
         },
+        "Force":{
+          "shape":"Boolean",
+          "documentation":"<p>Forces the instances to terminate. The instance will first attempt a graceful shutdown, which includes flushing file system caches and metadata. If the graceful shutdown fails to complete within the timeout period, the instance shuts down forcibly without flushing the file system caches and metadata.</p>"
+        },
         "SkipOsShutdown":{
           "shape":"Boolean",
           "documentation":"<p>Specifies whether to bypass the graceful OS shutdown process when the instance is terminated.</p> <p>Default: <code>false</code> </p>"

sdk/src/Services/EC2/Generated/Model/Internal/MarshallTransformations/TerminateInstancesRequestMarshaller.cs

@@ -63,6 +63,10 @@ public IRequest Marshall(TerminateInstancesRequest publicRequest)
                 {
                     request.Parameters.Add("DryRun", StringUtils.FromBool(publicRequest.DryRun));
                 }
+                if(publicRequest.IsSetForce())
+                {
+                    request.Parameters.Add("Force", StringUtils.FromBool(publicRequest.Force));
+                }
                 if(publicRequest.IsSetInstanceIds())
                 {
                     if (publicRequest.InstanceIds.Count == 0)

sdk/src/Services/EC2/Generated/Model/TerminateInstancesRequest.cs

@@ -129,6 +129,7 @@ namespace Amazon.EC2.Model
     public partial class TerminateInstancesRequest : AmazonEC2Request
     {
         private bool? _dryRun;
+        private bool? _force;
         private List<string> _instanceIds = AWSConfigs.InitializeCollections ? new List<string>() : null;
         private bool? _skipOsShutdown;
 
@@ -166,6 +167,27 @@ internal bool IsSetDryRun()
             return this._dryRun.HasValue; 
         }
 
+        /// <summary>
+        /// Gets and sets the property Force. 
+        /// <para>
+        /// Forces the instances to terminate. The instance will first attempt a graceful shutdown,
+        /// which includes flushing file system caches and metadata. If the graceful shutdown
+        /// fails to complete within the timeout period, the instance shuts down forcibly without
+        /// flushing the file system caches and metadata.
+        /// </para>
+        /// </summary>
+        public bool? Force
+        {
+            get { return this._force; }
+            set { this._force = value; }
+        }
+
+        // Check to see if Force property is set
+        internal bool IsSetForce()
+        {
+            return this._force.HasValue; 
+        }
+
         /// <summary>
         /// Gets and sets the property InstanceIds. 
         /// <para>