amplify.yml

Astro (this lab)

version: 1
frontend:
  phases:
    preBuild:
      commands:
        - npm ci
    build:
      commands:
        - npm run build
        - |
          if [ "${AWS_BRANCH}" != "main" ]; then
            printf 'User-agent: *\nDisallow: /\n' > dist/robots.txt
          fi
  artifacts:
    baseDirectory: dist
    files:
      - '**/*'
  cache:
    paths:
      - node_modules/**/*

Field	Value
Install	`npm ci`
Build	`npm run build` (`astro build`)
Publish	`dist/`
Cache	`node_modules`

Other generators

The Amplify promotion flow is the same. Only install/build/artifact paths change:

Stack	Typical install	Typical build	Artifact dir
Astro	`npm ci`	`npm run build`	`dist`
Jekyll	`bundle install`	`bundle exec jekyll build`	`_site`
Zensical	follow that tool’s docs	follow that tool’s docs	its output dir