${{ github.action_path }} makes no sense when action is run inside self-hosted custom container.

Describe the bug ${{ github.action_path }} points to a location in the host filesystem of the github runner host. Not to /__w/_actions/…

To Reproduce Steps to reproduce the behavior:

1. Create a custom container.
2. Create a workflow that uses the custom docker container on a self-hosted runner.
3. Try to follow the guide for the new composite actions that requires to use ${{ github.action_path }}, for example to locate a shell script of a composite action.

Expected behavior The shell script is found and executed, just like when doing this with a normal ubuntu-latest runner.

Runner Version and Platform

v2.273.4 on Linux.

OS of the machine running the runner? OSX/Windows/Linux/… Linux.

What’s not working?

(...)
##[error]Process completed with exit code 127.
Run pylot-tech/actions_checkout@v1
/__w/_temp/615e5631-1155-478e-93e8-8e5cc51fb88e.sh: line 1: /home/github-runner/actions-runner-new/_work/_actions/pylot-tech/actions_checkout/v1/clone.sh: No such file or directory

[zotrix]

seems like env variable GITHUB_ACTION_PATH set to correct path. so step could be called via GITHUB_ACTION_PATH instead of ${{ github.action_path }}

  - run: ${GITHUB_ACTION_PATH}/setup.sh
    shell: sh

[vstrimaitis]

Hi! I’m still encountering this issue in the following case:

1. Create a custom composite action foo in a (private) repository A. The action is defined using two files - foo/action.yml and foo/my_script.sh; action.yml references the script like so: run: ${{ github.action_path }}/my_script.sh
2. Create a workflow in repository B that does the following:
   1. Pulls down repository A using actions/checkout to a local folder
   2. Invokes the custom action using uses: ./my_local_folder/foo
3. Get the same <...> No such file or directory <...> error as mentioned in the issue’s description

Using ${GITHUB_ACTION_PATH} instead of ${{ github.action_path }} does help by the way, but I guess the two placeholders should behave the same way? 😁