# CfnSecret Creates a new secret. A *secret* can be a password, a set of credentials such as a user name and password, an OAuth token, or other secret information that you store in an encrypted form in Secrets Manager. For Amazon RDS master user credentials, see [AWS::RDS::DBCluster MasterUserSecret](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-rds-dbcluster-masterusersecret.html) . For Amazon Redshift admin user credentials, see [AWS::Redshift::Cluster](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-redshift-cluster.html) . To retrieve a secret in a CloudFormation template, use a *dynamic reference* . For more information, see [Retrieve a secret in an CloudFormation resource](https://docs.aws.amazon.com/secretsmanager/latest/userguide/cfn-example_reference-secret.html) . For information about creating a secret in the console, see [Create a secret](https://docs.aws.amazon.com/secretsmanager/latest/userguide/manage_create-basic-secret.html) . For information about creating a secret using the CLI or SDK, see [CreateSecret](https://docs.aws.amazon.com/secretsmanager/latest/apireference/API_CreateSecret.html) . For information about retrieving a secret in code, see [Retrieve secrets from Secrets Manager](https://docs.aws.amazon.com/secretsmanager/latest/userguide/retrieving-secrets.html) . Extends: Construct › CfnElement › CfnRefElement › CfnResource › CfnSecret Implements: IInspectable, ITaggable, IEnvironmentAware, ISecretRef, IConstruct, IDependable - CloudFormation: [`AWS::SecretsManager::Secret`](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-secretsmanager-secret.html) - Source: Generated code - Type last changed: v2.252.0 · 30 Apr 2026 ## Example ```ts // The code below shows an example of how to instantiate this type. // The values are placeholders you should change. import { aws_secretsmanager as secretsmanager } from 'aws-cdk-lib'; const cfnSecret = new secretsmanager.CfnSecret(this, 'MyCfnSecret', /* all optional props */ { description: 'description', generateSecretString: { excludeCharacters: 'excludeCharacters', excludeLowercase: false, excludeNumbers: false, excludePunctuation: false, excludeUppercase: false, generateStringKey: 'generateStringKey', includeSpace: false, passwordLength: 123, requireEachIncludedType: false, secretStringTemplate: 'secretStringTemplate', }, kmsKeyId: 'kmsKeyId', name: 'name', replicaRegions: [{ region: 'region', // the properties below are optional kmsKeyId: 'kmsKeyId', }], secretString: 'secretString', tags: [{ key: 'key', value: 'value', }], type: 'type', }); ``` ## Initializer ```ts new CfnSecret(scope: Construct, id: string, props?: CfnSecretProps) ``` ## Construct Props - `description`: string — The description of the secret. - `generateSecretString`: [IResolvable](/cdk/api/v2/docs/aws-cdk-lib.IResolvable.html) | [CfnSecret.GenerateSecretStringProperty](/cdk/api/v2/docs/aws-cdk-lib.aws_secretsmanager.CfnSecret.GenerateSecretStringProperty.html) — A structure that specifies how to generate a password to encrypt and store in the secret. To include a specific string in the secret, use `SecretString` instead. If you omit both `GenerateSecretString` and `SecretString` , you create an empty secret. When you make a change to this property, a new secret version is created. We recommend that you specify the maximum length and include every character type that the system you are generating a password for can support. - `kmsKeyId`: string | [IKeyRef](/cdk/api/v2/docs/aws-cdk-lib.interfaces.aws_kms.IKeyRef.html) — The ARN, key ID, or alias of the AWS key that Secrets Manager uses to encrypt the secret value in the secret. An alias is always prefixed by `alias/` , for example `alias/aws/secretsmanager` . For more information, see [About aliases](https://docs.aws.amazon.com/kms/latest/developerguide/alias-about.html) . To use a AWS key in a different account, use the key ARN or the alias ARN. If you don't specify this value, then Secrets Manager uses the key `aws/secretsmanager` . If that key doesn't yet exist, then Secrets Manager creates it for you automatically the first time it encrypts the secret value. If the secret is in a different AWS account from the credentials calling the API, then you can't use `aws/secretsmanager` to encrypt the secret, and you must create and use a customer managed AWS key. - `name`: string — The name of the new secret. The secret name can contain ASCII letters, numbers, and the following characters: /_+=.@- Do not end your secret name with a hyphen followed by six characters. If you do so, you risk confusion and unexpected results when searching for a secret by partial ARN. Secrets Manager automatically adds a hyphen and six random characters after the secret name at the end of the ARN. - `replicaRegions`: [IResolvable](/cdk/api/v2/docs/aws-cdk-lib.IResolvable.html) | [IResolvable](/cdk/api/v2/docs/aws-cdk-lib.IResolvable.html) | [CfnSecret.ReplicaRegionProperty](/cdk/api/v2/docs/aws-cdk-lib.aws_secretsmanager.CfnSecret.ReplicaRegionProperty.html)[] — A custom type that specifies a `Region` and the `KmsKeyId` for a replica secret. - `secretString`: string — The text to encrypt and store in the secret. We recommend you use a JSON structure of key/value pairs for your secret value. To generate a random password, use `GenerateSecretString` instead. If you omit both `GenerateSecretString` and `SecretString` , you create an empty secret. When you make a change to this property, a new secret version is created. - `tags`: [CfnTag](/cdk/api/v2/docs/aws-cdk-lib.CfnTag.html)[] — A list of tags to attach to the secret. Each tag is a key and value pair of strings in a JSON text string, for example: `[{"Key":"CostCenter","Value":"12345"},{"Key":"environment","Value":"production"}]` Secrets Manager tag key names are case sensitive. A tag with the key "ABC" is a different tag from one with key "abc". Stack-level tags, tags you apply to the CloudFormation stack, are also attached to the secret. If you check tags in permissions policies as part of your security strategy, then adding or removing a tag can change permissions. If the completion of this operation would result in you losing your permissions for this secret, then Secrets Manager blocks the operation and returns an `Access Denied` error. For more information, see [Control access to secrets using tags](https://docs.aws.amazon.com/secretsmanager/latest/userguide/auth-and-access_examples.html#tag-secrets-abac) and [Limit access to identities with tags that match secrets' tags](https://docs.aws.amazon.com/secretsmanager/latest/userguide/auth-and-access_examples.html#auth-and-access_tags2) . For information about how to format a JSON parameter for the various command line tool environments, see [Using JSON for Parameters](https://docs.aws.amazon.com/cli/latest/userguide/cli-using-param.html#cli-using-param-json) . If your command-line tool or SDK requires quotation marks around the parameter, you should use single quotes to avoid confusion with the double quotes required in the JSON text. The following restrictions apply to tags: - Maximum number of tags per secret: 50 - Maximum key length: 127 Unicode characters in UTF-8 - Maximum value length: 255 Unicode characters in UTF-8 - Tag keys and values are case sensitive. - Do not use the `aws:` prefix in your tag names or values because AWS reserves it for AWS use. You can't edit or delete tag names or values with this prefix. Tags with this prefix do not count against your tags per secret limit. - If you use your tagging schema across multiple services and resources, other services might have restrictions on allowed characters. Generally allowed characters: letters, spaces, and numbers representable in UTF-8, plus the following special characters: + - = . _ : / - `type`: string — The exact string that identifies the third-party partner that holds the external secret. For more information, see [Managed external secret partners](https://docs.aws.amazon.com/secretsmanager/latest/userguide/mes-partners.html) . ## Properties - `attrId`: string — The ARN of the secret. - `CFN_RESOURCE_TYPE_NAME`: string (static) — The CloudFormation resource type name for this resource class. - `cfnOptions`: [ICfnResourceOptions](/cdk/api/v2/docs/aws-cdk-lib.ICfnResourceOptions.html) — Options for this resource, such as condition, update policy etc. - `cfnResourceType`: string — AWS resource type. - `creationStack`: string[] - `description`: string — The description of the secret. - `env`: [ResourceEnvironment](/cdk/api/v2/docs/aws-cdk-lib.interfaces.ResourceEnvironment.html) - `generateSecretString`: [IResolvable](/cdk/api/v2/docs/aws-cdk-lib.IResolvable.html) | [CfnSecret.GenerateSecretStringProperty](/cdk/api/v2/docs/aws-cdk-lib.aws_secretsmanager.CfnSecret.GenerateSecretStringProperty.html) — A structure that specifies how to generate a password to encrypt and store in the secret. - `kmsKeyId`: string — The ARN, key ID, or alias of the AWS key that Secrets Manager uses to encrypt the secret value in the secret. - `logicalId`: string — The logical ID for this CloudFormation stack element. The logical ID of the element is calculated from the path of the resource node in the construct tree. To override this value, use `overrideLogicalId(newLogicalId)`. - `name`: string — The name of the new secret. - `node`: [Node](/cdk/api/v2/docs/constructs.Node.html) — The tree node. - `ref`: string — Return a string that will be resolved to a CloudFormation `{ Ref }` for this element. If, by any chance, the intrinsic reference of a resource is not a string, you could coerce it to an IResolvable through `Lazy.any({ produce: resource.ref })`. - `replicaRegions`: [IResolvable](/cdk/api/v2/docs/aws-cdk-lib.IResolvable.html) | [IResolvable](/cdk/api/v2/docs/aws-cdk-lib.IResolvable.html) | [CfnSecret.ReplicaRegionProperty](/cdk/api/v2/docs/aws-cdk-lib.aws_secretsmanager.CfnSecret.ReplicaRegionProperty.html)[] — A custom type that specifies a `Region` and the `KmsKeyId` for a replica secret. - `secretRef`: [SecretReference](/cdk/api/v2/docs/aws-cdk-lib.interfaces.aws_secretsmanager.SecretReference.html) — A reference to a Secret resource. - `secretString`: string — The text to encrypt and store in the secret. - `stack`: [Stack](/cdk/api/v2/docs/aws-cdk-lib.Stack.html) — The stack in which this element is defined. CfnElements must be defined within a stack scope (directly or indirectly). - `tags`: [TagManager](/cdk/api/v2/docs/aws-cdk-lib.TagManager.html) — Tag Manager which manages the tags for this resource. - `tagsRaw`: [CfnTag](/cdk/api/v2/docs/aws-cdk-lib.CfnTag.html)[] — A list of tags to attach to the secret. - `type`: string — The exact string that identifies the third-party partner that holds the external secret. ## Methods - `addDeletionOverride(path: string): void` — Syntactic sugar for `addOverride(path, undefined)`. **Parameters** - `path` — The path of the value to delete. - `addDependency(target: CfnResource): void` — Use `addResourceDependency` instead. This method has been renamed to `addResourceDependency` to more clearly set it apart from `construct.node.addDependency`. See the documentation of that function for more details. - `addDependsOn(target: CfnResource): void` — Use `addResourceDependency` instead. This can be used for resources across stacks (or nested stack) boundaries and the dependency will automatically be transferred to the relevant scope. This method has been renamed to `addResourceDependency`, which makes it more clear that this method operates at a different level from the construct-level `construct.node.addDependency()` mechanism. - `addMetadata(key: string, value: any): void` — Add a value to the CloudFormation Resource Metadata. - `addOverride(path: string, value: any): void` — Adds an override to the synthesized CloudFormation resource. To add a property override, either use `addPropertyOverride` or prefix `path` with "Properties." (i.e. `Properties.TopicName`). If the override is nested, separate each nested level using a dot (.) in the path parameter. If there is an array as part of the nesting, specify the index in the path. To include a literal `.` in the property name, prefix with a `\`. In most programming languages you will need to write this as `"\\."` because the `\` itself will need to be escaped. For example, ```typescript cfnResource.addOverride('Properties.GlobalSecondaryIndexes.0.Projection.NonKeyAttributes', ['myattribute']); cfnResource.addOverride('Properties.GlobalSecondaryIndexes.1.ProjectionType', 'INCLUDE'); ``` would add the overrides ```json "Properties": { "GlobalSecondaryIndexes": [ { "Projection": { "NonKeyAttributes": [ "myattribute" ] ... } ... }, { "ProjectionType": "INCLUDE" ... }, ] ... } ``` The `value` argument to `addOverride` will not be processed or translated in any way. Pass raw JSON values in here with the correct capitalization for CloudFormation. If you pass CDK classes or structs, they will be rendered with lowercased key names, and CloudFormation will reject the template. **Parameters** - `path` — - The path of the property, you can use dot notation to override values in complex types. - `value` — - The value. - `addPropertyDeletionOverride(propertyPath: string): void` — Adds an override that deletes the value of a property from the resource definition. **Parameters** - `propertyPath` — The path to the property. - `addPropertyOverride(propertyPath: string, value: any): void` — Adds an override to a resource property. Syntactic sugar for `addOverride("Properties.<...>", value)`. **Parameters** - `propertyPath` — The path of the property. - `value` — The value. - `addResourceDependency(target: CfnResource, reason?: string): void` — Indicates that this resource depends on another resource and cannot be provisioned unless the other resource has been successfully provisioned. This can be used for resources across stacks (or nested stack) boundaries and the dependency will automatically be transferred to the relevant scope. This method only adds dependencies between L1 resources. If you are looking for a generic construct-to-construct dependency mechanism that works for all constructs including L2s, use `construct.node.addDependency` instead. - `applyCrossStackReferenceStrength(strength: ReferenceStrength): void` — Sets the cross-stack reference strength for this resource. When set, any cross-stack reference to this resource will use the specified strength instead of the global default from the consuming stack's context. **Parameters** - `strength` — - The reference strength to use for this resource. - `applyRemovalPolicy(policy?: RemovalPolicy, options?: RemovalPolicyOptions): void` — Sets the deletion policy of the resource based on the removal policy specified. The Removal Policy controls what happens to this resource when it stops being managed by CloudFormation, either because you've removed it from the CDK application or because you've made a change that requires the resource to be replaced. The resource can be deleted (`RemovalPolicy.DESTROY`), or left in your AWS account for data recovery and cleanup later (`RemovalPolicy.RETAIN`). In some cases, a snapshot can be taken of the resource prior to deletion (`RemovalPolicy.SNAPSHOT`). A list of resources that support this policy can be found in the following link: - `arnForSecret(resource: ISecretRef): string` (static) - `cfnPropertyName(cdkPropertyName: string): string` - `fromSecretId(scope: Construct, id: string, secretId: string): ISecretRef` (static) — Creates a new ISecretRef from a secretId. - `getAtt(attributeName: string, typeHint?: ResolutionTypeHint): Reference` — Returns a token for an runtime attribute of this resource. Ideally, use generated attribute accessors (e.g. `resource.arn`), but this can be used for future compatibility in case there is no generated attribute. **Parameters** - `attributeName` — The name of the attribute. - `getMetadata(key: string): any` — Retrieve a value value from the CloudFormation Resource Metadata. - `inspect(inspector: TreeInspector): void` — Examines the CloudFormation resource and discloses attributes. **Parameters** - `inspector` — tree inspector to collect and process attributes. - `isCfnElement(x: any): boolean` (static) — Returns `true` if a construct is a stack element (i.e. part of the synthesized cloudformation template). Uses duck-typing instead of `instanceof` to allow stack elements from different versions of this library to be included in the same stack. **Returns:** The construct as a stack element or undefined if it is not a stack element. - `isCfnResource(x: any): boolean` (static) — Check whether the given object is a CfnResource. - `isCfnSecret(x: any): boolean` (static) — Checks whether the given object is a CfnSecret. - `isConstruct(x: any): boolean` (static) — Checks if `x` is a construct. Use this method instead of `instanceof` to properly detect `Construct` instances, even when the construct library is symlinked. Explanation: in JavaScript, multiple copies of the `constructs` library on disk are seen as independent, completely different libraries. As a consequence, the class `Construct` in each copy of the `constructs` library is seen as a different class, and an instance of one class will not test as `instanceof` the other class. `npm install` will not create installations like this, but users may manually symlink construct libraries together or use a monorepo tool: in those cases, multiple copies of the `constructs` library can be accidentally installed, and `instanceof` will behave unpredictably. It is safest to avoid using `instanceof`, and using this type-testing method instead. **Parameters** - `x` — Any object. **Returns:** true if `x` is an object created from a class which extends `Construct`. - `obtainDependencies(): Stack | CfnResource[]` — Retrieves an array of resources and stacks this resource depends on. For resources depended on directly, returns the `CfnResource` object. For dependencies on other stacks, returns the `Stack` object. The order of the array is not guaranteed. - `overrideLogicalId(newLogicalId: string): void` — Overrides the auto-generated logical ID with a specific ID. **Parameters** - `newLogicalId` — The new logical ID to use for this stack element. - `removeDependency(target: CfnResource): void` — Use `removeResourceDependency` instead This can be used for resources across stacks (including nested stacks) and the dependency will automatically be removed from the relevant scope. - `removeResourceDependency(target: CfnResource): void` — Indicates that this resource no longer depends on another resource. This can be used for resources across stacks (including nested stacks) and the dependency will automatically be removed from the relevant scope. - `replaceDependency(target: CfnResource, newTarget: CfnResource): void` — Replaces one dependency with another. **Parameters** - `target` — The dependency to replace. - `newTarget` — The new dependency to add. - `toString(): string` — Returns a string representation of this construct. **Returns:** a string representation of this resource - `with(...mixins: IMixin[]): IConstruct` — Applies one or more mixins to this construct. Mixins are applied in order. The list of constructs is captured at the start of the call, so constructs added by a mixin will not be visited. Use multiple `with()` calls if subsequent mixins should apply to added constructs.