# Tags

Manages AWS tags for all resources within a construct scope.

- Source: [`core/lib/tag-aspect.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0/packages/aws-cdk-lib/core/lib/tag-aspect.ts#L155)

## Example

```ts
declare const mesh: appmesh.Mesh;
declare const service: cloudmap.Service;

const node = new appmesh.VirtualNode(this, 'node', {
  mesh,
  serviceDiscovery: appmesh.ServiceDiscovery.cloudMap(service),
  listeners: [appmesh.VirtualNodeListener.http({
    port: 8080,
    healthCheck: appmesh.HealthCheck.http({
      healthyThreshold: 3,
      interval: Duration.seconds(5),
      path: '/ping',
      timeout: Duration.seconds(2),
      unhealthyThreshold: 2,
    }),
    timeout: {
      idle: Duration.seconds(5),
    },
  })],
  backendDefaults: {
    tlsClientPolicy: {
      validation: {
        trust: appmesh.TlsValidationTrust.file('/keys/local_cert_chain.pem'),
      },
    },
  },
  accessLog: appmesh.AccessLog.fromFilePath('/dev/stdout'),
});

cdk.Tags.of(node).add('Environment', 'Dev');
```

## Methods

- `add(key: string, value: string, props?: TagProps): void` — Add tags to the node of a construct and all its the taggable children.

  ## Tagging and CloudFormation Stacks

  If the feature flag `@aws-cdk/core:explicitStackTags` is set to `true`
  (recommended modern behavior), Stacks will not automatically be tagged.
  Stack tags should be configured on Stacks directly (preferred), or
  you must explicitly include the resource type `aws:cdk:stack` in the
  `includeResourceTypes` array.

  If the feature flag is set to `false` (legacy behavior) then both Stacks
  and resources in the indicated scope will both be tagged by default, which
  leads to tags being applied twice (once in the template, and then once
  again automatically by CloudFormation as part of the stack deployment).
  That behavior leads to loss of control as `excludeResourceTypes` will
  prevent tags from appearing in the template, but they will still be
  applied to the Stack and hence CloudFormation will still apply them
  to the resource.

- `of(scope: IConstruct): Tags // chainable` (static) — Returns the tags API for this scope.

  **Parameters**

  - `scope` — The scope.

- `remove(key: string, props?: TagProps): void` — remove tags to the node of a construct and all its the taggable children.