Custom Docker container Github action is not able to find Node script inside /github/workspace-CodePudding

I want to create a custom Docker container Github action and started with this action.yml file

name: my-action
description: For testing purposes
branding:
  icon: shield
  color: green
inputs:
  my-input:
    description: demo
    required: true
runs:
  using: docker
  image: Dockerfile

Next I added some code in a app.js file inside the root directory

const core = require('@actions/core');

try {
  const myInput = core.getInput('my-input', { required: true });

  core.notice(`Input is: ${myInput}`);
} catch (error) {
  core.setFailed(error.message);
}

The Dockerfile

FROM node:16.13.0-alpine

USER node
WORKDIR /home/node

ADD --chown=node:node . /home/node
RUN npm install

CMD [ "node", "app.js" ]

To test my action I published my action and created a new workflow

name: Run the action

on: workflow_dispatch

jobs:
  run-the-action:
    runs-on: ubuntu-latest
    steps:
      - name: Run the action
        uses: me/[email protected]
        with:
          my-input: hello

Unfortunately the action crashes with the error message

Error: Cannot find module '/github/workspace/app.js'

Maybe I'm missing a mapping from /home/node to /github/workspace? Does someone know what's wrong or how to fix it?

Please let me know if you need more information!

CodePudding user response：

This Dockerfile worked for me

FROM node:16.13.0-alpine

USER node

ADD --chown=node:node . /home/node
RUN cd /home/node && \
    npm install --production

CMD [ "node", "/home/node/app.js" ]