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Hello, I am experiencing a weird situation when using the runner-container-hooks with a self hosted runner:

I installed the Github runner on a fresh Ubuntu 22.04 server with Docker and created a simple workflow:

name: Hello Docker

on:
  workflow_dispatch:

jobs:
  hello-world:
    runs-on: [self-hosted]
    steps:
      - uses: actions/hello-world-docker-action@main
        with:
          who-to-greet: 'Mona the Octocat'

As expected, the job displays the correct message:

Then I downloaded the latest release (0.4.0) of the docker runner-container-hook and put the path to the index.js file in my .env file. When running the same workflow (see above) with this modified setup, it does not print out the whole message:

I then did a little bit of debugging, by adding a debug log to the run function of the hook to output the input parameters:

async function run(): Promise<void> {
  try {
    checkEnvironment()
    const input = await getInputFromStdin()

    // added debug message
    core.debug(`Hook input: ${JSON.stringify(input, null, 4)}`)

    // ... rest of the file

The output is very interesting, instead of one element in the entryPointArgs there are multiple substrings of the input, with some weird escape characters:

I think the problem might be that the runner applications does not pass the input to the hook correctly.

I would be glad to receive some help on this topic because I have to customize the "docker run" command line statements and therefore use the hook. Thanks in advance! 🙏🏻