Change base build image of tests

[jerometremblay]

In my pipeline manifest.yml i have this:

build:
  image: aws/codebuild/standard:7.0

The main buildspec.yml now use this ubuntu as the base image.

However, during the tests in "stages" it still use the default aws/codebuild/amazonlinux2-x86_64-standard:4.0

stages:
  - # The name of the environment.
    name: tests
    post_deployments:
      tests:
        buildspec: copilot/pipelines/root-main-app/buildspecs/post_buildspec.yml
        configuration:
          BatchEnabled: true

Is it possible to use the same base image as the default, or override it per-stage?

[jerometremblay]

I created a cfn patch with copilot pipeline override.

# cfn.patches.yml
- op: replace
  path: /Resources/PosttestsDeploymentActiontests/Properties/Environment/Image
  value: 'aws/codebuild/standard:7.0'