How to debug opcache issues

[toby-griffiths]

I've just attempted to make our first production deployment using Franken PHP, in worker mode, but have had to disable opcache as it was preventing the containers starting up.

I've see this discussion, suggesting it's less important in worker mode, however I'd like to re-enable it, for worker startup performance, if we're able to.

Can anyone advise how we might debug what about the opcache file is causing problems?

We started with the Symfony for Docker setup, and copied the Helm chart config over from the latest API Platform distribution (thanks to @dunglas for both), but this was the main stummbling block, and took me most of the day to work out it was opcache related.

Any help greatly welcomed. Thank you.

[withinboredom]

What is the issue you were running into?