act_runner/pkg/runner/testdata/docker-action-host-env/action/action.yml

name: "Hello World Docker Action"
description: "A simple Docker action that prints Hello, World! and environment variables."
inputs:
  who-to-greet:
    description: "Who to greet"
    required: false
    default: "World"
runs:
  using: "docker"
  image: "Dockerfile"
  args:
    - ${{ inputs.who-to-greet }}