iac-label

TypeScript library for generating consistent resource names and tags in cloud infrastructure, designed for use with Infrastructure as Code (IaC).

Installation

npm install @enter-at/iac-label

Usage

import { Label, Context } from '@enter-at/iac-label';

Creating a Label You can create a Label instance by providing the required properties via the ConstructorProps interface.

const context: Context = {
  project: 'my-project',
  environment: 'dev',
  service: 'my-service',
};

const label = new Label(context);

Alias for new Label():

const label = Label.from(context);

Usage

.id

Returns a unique identifier for the label, derived from the label’s fields.

label.id;
// my-project-dev-my-service

.tags

Returns a collection of tags derived from the label’s fields, including custom tags if provided.

label.tags;
// { Project: 'my-project', Environment: 'dev', Service: 'my-service' }

.with

Returns a unique identifier for the label, with additional fields appended.

label.with("foo", "bar");
// my-project-dev-my-service-foo-bar

Advanced Usage

Custom Delimiters

By default, the label uses a hyphen (-) as a delimiter. You can specify a custom delimiter when creating a label.

const label = Label.from({
  project: 'my-project',
  environment: 'dev',
  service: 'my-service',
  delimiter: ':',
});

label.id;
// my-project:dev:my-service

Inheriting Context

You can inherit context from an existing label, allowing you to extend or override fields while maintaining consistency.

const label = Label.from({
  project: 'my-project',
  environment: 'dev',
  service: 'my-service',
});

const newLabel = Label.from(label, {
  environment: 'prod',
});

newLabel.id;
// my-project-prod-my-service

Contributing

Contributions are welcome! Please submit a pull request or open an issue for feature requests or bug fixes.

License

This project is licensed under the MIT License - see the LICENSE file for details.