Unable to load dynamic library in Self Hosted Runner

[Moser-ss]

Describe the bug
When I am setting up the PHP in a SelfHosted runner I got this Warning message
PHP Warning: PHP Startup: Unable to load dynamic library to multiple libraries.
When I check inside of the Runner the file exists with the following permission

ls -la /usr/lib/php/20190902/amqp.so
-rw-r--r-- 1 root root 175072 Dec 31 08:14 /usr/lib/php/20190902/amqp.so

This issue doesn't happen in the GitHub Hosted Runner, so I don't know if is a permissions issue because the runner in the self-hosted runner is been executed with the user runner

Version

• I have checked releases, and the bug exists in the latest patch version of v1 or v2.
• v2
• v1

Runners

• GitHub Hosted
• Self Hosted

Operating systems
Linux Ubutunu:20.04

PHP versions
'7.4'

To Reproduce

jobs:
  cloud-test:
    runs-on: 
    - selfhost-php
    timeout-minutes: 10
    steps:
      - name: Checkout ${{ github.repository }}
        uses: actions/checkout@v2
        with:
          fetch-depth: 1
          ref: ${{ github.head_ref }}

      - name: Setup SSH KEY
        uses: webfactory/ssh-agent@v0.5.4
        with:
          ssh-private-key: ${{ secrets.GHA_SSH_PRIVATE_KEY }}

      
      - name: Setup PHP with PECL extension
        uses: shivammathur/setup-php@v2
        with:
          php-version: '7.4'
          extensions: apcu, ast
          ini-values: memory_limit=1024m,apc.enable_cli=1
          coverage: xdebug
          tools: pecl,composer
        env:
          COMPOSER_TOKEN: ${{ secrets.GHA_ACCESS_TOKEN }}
      - name: Get composer cache directory
        id: composer-cache
        run: echo "::set-output name=dir::$(composer config cache-files-dir)"

Expected behavior
Not showing the warning messages when setting up the PHP

Screenshots/Logs

==> Setup PHP
PHP Warning:  PHP Startup: Unable to load dynamic library 'amqp.so' (tried: /usr/lib/php/20190902/amqp.so (librabbitmq.so.4: cannot open shared object file: No such file or directory), /usr/lib/php/20190902/amqp.so.so (/usr/lib/php/20190902/amqp.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library 'dba.so' (tried: /usr/lib/php/20190902/dba.so (libqdbm.so.14: cannot open shared object file: No such file or directory), /usr/lib/php/20190902/dba.so.so (/usr/lib/php/20190902/dba.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library 'gd.so' (tried: /usr/lib/php/20190902/gd.so (libgd.so.3: cannot open shared object file: No such file or directory), /usr/lib/php/20190902/gd.so.so (/usr/lib/php/20190902/gd.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0

Additional context
To manage the self-hosted runners I am using the actions-runner-controller and I am using the image from the project summerwind/actions-runner:latest
Are you willing to submit a PR?

[shivammathur]

For self-hosted runners please specify the runner environment variable as self-hosted. Also please start with a clean container after setting it.

- name: Setup PHP with PECL extension
  uses: shivammathur/setup-php@v2
  with:
    php-version: '7.4'
    extensions: apcu, ast
    ini-values: memory_limit=1024m,apc.enable_cli=1
    coverage: xdebug
    tools: pecl,composer
  env:
    runner: self-hosted
    COMPOSER_TOKEN: ${{ secrets.GHA_ACCESS_TOKEN }}

Docs: https://github.com/shivammathur/setup-php#self-hosted-setup