# `DeploymentSettings` section
<a name="DeploymentSettings-build-image-v3"></a>

**Note**  
`DeploymentSettings` is added starting with Amazon ParallelCluster version 3.4.0.

**(Optional)** Specifies the deployment settings configuration.

```
DeploymentSettings:
  LambdaFunctionsVpcConfig:
    SecurityGroupIds:
      - string
    SubnetIds:
      - string
```

## `DeploymentSettings` properties
<a name="DeploymentSettings-build-image-v3.properties"></a>

### `LambdaFunctionsVpcConfig`
<a name="DeploymentSettings-build-image-v3-LambdaFunctionsVpcConfig"></a>

**(Optional)** Specifies the Amazon Lambda functions VPC configurations. For more information, see [Amazon Lambda VPC configuration in Amazon ParallelCluster](lambda-vpc-v3.md).

```
LambdaFunctionsVpcConfig:
  SecurityGroupIds:
    - string
  SubnetIds:
    - string
```

#### `LambdaFunctionsVpcConfig properties`
<a name="DeploymentSettings-build-image-v3-LambdaFunctionsVpcConfig.properties"></a>

 `SecurityGroupIds` (**Required**, `[String]`)  
The list of Amazon VPC security group IDs that are attached to the Lambda functions.  
[Update policy: If this setting is changed, the update is not allowed.](using-pcluster-update-cluster-v3.md#update-policy-fail-v3)

 `SubnetIds` (**Required**, `[String]`)  
The list of subnet IDs that are attached to the Lambda functions.  
[Update policy: If this setting is changed, the update is not allowed.](using-pcluster-update-cluster-v3.md#update-policy-fail-v3)

**Note**  
The subnets and security groups must be in the same VPC.