How to add a tag to an AWS-CDK construct

Question

How to add a tag to an AWS-CDK specific construct or even better one tag definition to all ressources created within the stack?

Answer 1

According to aws-cdk doc you can add a tag to all constructs/ressources. Tags will inherits to constructs within same "tree". That's pretty cool.

Example using aws-cdk based on java:

MyStack stack = new MyStack(app, "nameOfStack");
Tag.add(stack, "tag_foo", "tag_foo");

AWS-Doc CDK Tagging

AWS CDK Reference: Tag

Tags can be applied to any construct. Tags are inherited, based on the scope. If you tag construct A, and A contains construct B, construct B inherits the tag.

Example from aws-cdk doc:

import { App, Stack, Tag } from require('@aws-cdk/core');

const app = new App();
const theBestStack = new Stack(app, 'MarketingSystem');

// Add a tag to all constructs in the stack
Tag.add(theBestStack, 'StackType', 'TheBest');

Answer 2

The above answers use the deprecated syntax.

Newer version of tagging the whole App:

const app = new cdk.App();
new SomeStack(app, 'SomeStack');
Tags.of(app).add("app", "my-app-name-here");

You could also tag individual stacks only:

const app = new cdk.App();
const stack = new SomeStack(app, 'SomeStack');
Tags.of(stack).add("stack-name", "SomeStack");

Or individual Constructs:

const usersTable = new dynamodb.Table(this, 'Users');
Tags.of(usersTable).add("owner", "team-andromeda");

Tags will apply to sub-Constructs hierarchically.