Overrides

Introduction

Stacktape uses Cloudformation to deploy your infrastructure into AWS. Each Stacktape resource definition (specified in the resources section) translates into multiple low-level AWS Cloudformation resource definitions. Overrides allow you to set or override the properties of these low-level Cloudformation resource definitions.

You can see what Cloudformation resources your Stacktape resource translates into in the config editor or on the overview page of your deployed stack (project stage).

Usage

Let's say we want to override the timeout of the AWS Lambda resource which is part of myFunction Stacktape resource in the following configuration:


resources:
  myFunction:
    type: function
    properties:
      packaging:
        type: stacktape-lambda-buildpack
        properties:
          entryfilePath: path/to/my/lambda.ts

In the interactive config editor, you can see the translated Cloudformation template for this config. You can see that myFunction resource contains 2 Cloudformation resources: MyFunctionFunction (AWS::Lambda::Function) and MyFunctionLogGroup (AWS::Logs::LogGroup).

Tree view of compiled Cloudformation template

Since we are looking to override the timeout, we will specify override for MyFunctionFunction resource


resources:
  myFunction:
    type: function
    properties:
      packaging:
        type: stacktape-lambda-buildpack
        properties:
          entryfilePath: path/to/my/lambda.ts
    overrides:
      MyFunctionFunction:
        Timeout: 15