feat(sagemaker): network isolation for a model (#30657)

### Issue # (if applicable)

None

### Reason for this change

SageMaker model supports for the [network isolation](https://docs.aws.amazon.com/sagemaker/latest/dg/mkt-algo-model-internet-free.html) function. But Model construct does not support this.

### Description of changes

Add `networkIsolation` to `ModelProps`

```ts
const model = new sagemaker.Model(this, 'ContainerModel', {
  containers: [
    {
      image,
      modelData,
    }
  ],
  networkIsolation: true, // Added
});
```

### Description of how you validated changes

Added both unit and integ tests

### Checklist
- [x] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

packages/@aws-cdk/aws-sagemaker-alpha/README.md

@@ -78,6 +78,31 @@ const model = new sagemaker.Model(this, 'InferencePipelineModel', {
 });
 ```
 
+### Model Properties
+
+#### Network Isolation
+
+If you enable [network isolation](https://docs.aws.amazon.com/sagemaker/latest/dg/mkt-algo-model-internet-free.html), the containers can't make any outbound network calls, even to other AWS services such as Amazon S3. Additionally, no AWS credentials are made available to the container runtime environment.
+
+To enable network isolation, set the `networkIsolation` property to `true`:
+
+```typescript
+import * as sagemaker from '@aws-cdk/aws-sagemaker-alpha';
+
+declare const image: sagemaker.ContainerImage;
+declare const modelData: sagemaker.ModelData;
+
+const model = new sagemaker.Model(this, 'ContainerModel', {
+  containers: [
+    {
+      image,
+      modelData,
+    }
+  ],
+  networkIsolation: true,
+});
+```
+
 ### Container Images
 
 Inference code can be stored in the Amazon EC2 Container Registry (Amazon ECR), which is specified

packages/@aws-cdk/aws-sagemaker-alpha/lib/model.ts

@@ -206,6 +206,17 @@ export interface ModelProps {
    * @default true
    */
   readonly allowAllOutbound?: boolean;
+
+  /**
+   * Whether to enable network isolation for the model container.
+   *
+   * When enabled, no inbound or outbound network calls can be made to or from the model container.
+   *
+   * @see https://docs.aws.amazon.com/sagemaker/latest/dg/mkt-algo-model-internet-free.html
+   *
+   * @default false
+   */
+  readonly networkIsolation?: boolean;
 }
 
 /**
@@ -312,6 +323,7 @@ export class Model extends ModelBase {
       primaryContainer: cdk.Lazy.any({ produce: () => this.renderPrimaryContainer() }),
       vpcConfig: cdk.Lazy.any({ produce: () => this.renderVpcConfig() }),
       containers: cdk.Lazy.any({ produce: () => this.renderContainers() }),
+      enableNetworkIsolation: props.networkIsolation,
     });
     this.modelName = this.getResourceNameAttribute(model.attrModelName);
     this.modelArn = this.getResourceArnAttribute(model.ref, {

packages/@aws-cdk/aws-sagemaker-alpha/test/integ.model.js.snapshot/aws-cdk-sagemaker-model.template.json

@@ -898,6 +898,169 @@
     "HuggingFaceModelRoleDefaultPolicy50587D35",
     "HuggingFaceModelRoleDA17DA00"
    ]
+  },
+  "NetworkIsolationModelRole562D6C7F": {
+   "Type": "AWS::IAM::Role",
+   "Properties": {
+    "AssumeRolePolicyDocument": {
+     "Statement": [
+      {
+       "Action": "sts:AssumeRole",
+       "Effect": "Allow",
+       "Principal": {
+        "Service": "sagemaker.amazonaws.com"
+       }
+      }
+     ],
+     "Version": "2012-10-17"
+    },
+    "ManagedPolicyArns": [
+     {
+      "Fn::Join": [
+       "",
+       [
+        "arn:",
+        {
+         "Ref": "AWS::Partition"
+        },
+        ":iam::aws:policy/AmazonSageMakerFullAccess"
+       ]
+      ]
+     }
+    ]
+   }
+  },
+  "NetworkIsolationModelRoleDefaultPolicy84ACFE88": {
+   "Type": "AWS::IAM::Policy",
+   "Properties": {
+    "PolicyDocument": {
+     "Statement": [
+      {
+       "Action": [
+        "ecr:BatchCheckLayerAvailability",
+        "ecr:BatchGetImage",
+        "ecr:GetDownloadUrlForLayer"
+       ],
+       "Effect": "Allow",
+       "Resource": {
+        "Fn::Join": [
+         "",
+         [
+          "arn:",
+          {
+           "Ref": "AWS::Partition"
+          },
+          ":ecr:",
+          {
+           "Ref": "AWS::Region"
+          },
+          ":",
+          {
+           "Ref": "AWS::AccountId"
+          },
+          ":repository/",
+          {
+           "Fn::Sub": "cdk-hnb659fds-container-assets-${AWS::AccountId}-${AWS::Region}"
+          }
+         ]
+        ]
+       }
+      },
+      {
+       "Action": "ecr:GetAuthorizationToken",
+       "Effect": "Allow",
+       "Resource": "*"
+      },
+      {
+       "Action": [
+        "s3:GetBucket*",
+        "s3:GetObject*",
+        "s3:List*"
+       ],
+       "Effect": "Allow",
+       "Resource": [
+        {
+         "Fn::Join": [
+          "",
+          [
+           "arn:",
+           {
+            "Ref": "AWS::Partition"
+           },
+           ":s3:::",
+           {
+            "Fn::Sub": "cdk-hnb659fds-assets-${AWS::AccountId}-${AWS::Region}"
+           },
+           "/*"
+          ]
+         ]
+        },
+        {
+         "Fn::Join": [
+          "",
+          [
+           "arn:",
+           {
+            "Ref": "AWS::Partition"
+           },
+           ":s3:::",
+           {
+            "Fn::Sub": "cdk-hnb659fds-assets-${AWS::AccountId}-${AWS::Region}"
+           }
+          ]
+         ]
+        }
+       ]
+      }
+     ],
+     "Version": "2012-10-17"
+    },
+    "PolicyName": "NetworkIsolationModelRoleDefaultPolicy84ACFE88",
+    "Roles": [
+     {
+      "Ref": "NetworkIsolationModelRole562D6C7F"
+     }
+    ]
+   }
+  },
+  "NetworkIsolationModel29FE9107": {
+   "Type": "AWS::SageMaker::Model",
+   "Properties": {
+    "Containers": [
+     {
+      "Image": {
+       "Fn::Sub": "${AWS::AccountId}.dkr.ecr.${AWS::Region}.${AWS::URLSuffix}/cdk-hnb659fds-container-assets-${AWS::AccountId}-${AWS::Region}:442a71de95281cb26bd41da567c79060206108b97bdde93cb4ce5f213f50013a"
+      }
+     },
+     {
+      "Image": {
+       "Fn::Sub": "${AWS::AccountId}.dkr.ecr.${AWS::Region}.${AWS::URLSuffix}/cdk-hnb659fds-container-assets-${AWS::AccountId}-${AWS::Region}:442a71de95281cb26bd41da567c79060206108b97bdde93cb4ce5f213f50013a"
+      },
+      "ModelDataUrl": {
+       "Fn::Sub": "https://s3.${AWS::Region}.${AWS::URLSuffix}/cdk-hnb659fds-assets-${AWS::AccountId}-${AWS::Region}/126d48fa0e32fbef5078b9d88658b35ad29d4291eb86675a64c75fa4f1338916.gz"
+      }
+     },
+     {
+      "Image": {
+       "Fn::Sub": "${AWS::AccountId}.dkr.ecr.${AWS::Region}.${AWS::URLSuffix}/cdk-hnb659fds-container-assets-${AWS::AccountId}-${AWS::Region}:442a71de95281cb26bd41da567c79060206108b97bdde93cb4ce5f213f50013a"
+      },
+      "ModelDataUrl": {
+       "Fn::Sub": "https://s3.${AWS::Region}.${AWS::URLSuffix}/cdk-hnb659fds-assets-${AWS::AccountId}-${AWS::Region}/126d48fa0e32fbef5078b9d88658b35ad29d4291eb86675a64c75fa4f1338916.gz"
+      }
+     }
+    ],
+    "EnableNetworkIsolation": true,
+    "ExecutionRoleArn": {
+     "Fn::GetAtt": [
+      "NetworkIsolationModelRole562D6C7F",
+      "Arn"
+     ]
+    }
+   },
+   "DependsOn": [
+    "NetworkIsolationModelRoleDefaultPolicy84ACFE88",
+    "NetworkIsolationModelRole562D6C7F"
+   ]
   }
  },
  "Mappings": {