The Ubuntu 24.04 runner suddenly gives unexpected failures

[dsdeboer]

Type of issue

• Error when running a workflow.
• Request for additional tools or software for an existing image.
• Request for a new image, Linux or Windows.
• Other

Describe the issue
On VM Image Version 1.0.11 our phpunit tests suddenly fail without reason, where they perfectly ran on VM Image version 1.0.10.

To Reproduce
List the steps to reproduce the behavior:

• Sorry, it's a private repository where we're using the runner. It just occured while we're on ubuntu-24.04 latest as custom hosted runner

Expected behavior
That the tests run again

Screenshots
Faulty:

Success:

Desktop (please complete the following information):

• OS: Ubuntu 24.04

Additional context
Add any other context about the problem here.

[jasonrandrews]

I don't see any changes to PHP, both images have the same output from php --version

PHP 8.3.6 (cli) (built: Dec 2 2024 12:36:18) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.3.6, Copyright (c) Zend Technologies
with Zend OPcache v8.3.6, Copyright (c), by Zend Technologies
with Xdebug v3.2.0, Copyright (c) 2002-2022, by Derick Rethans

Do you have any error messages or other information to share?

[dsdeboer]

The only thing I can share at this moment is our setup.

We are running PHP 8.1 with shivammathur/setup-php@2.32.0, and launch our phpunit tests with a mariadb service. The only interesting thing that comes to mind is which tests are failing. It are not the bare unit tests, but the integration tests which use symfony under the hood.

So did maybe something change with the networking interfaces?