Avoiding php-fpm restart with Apache

[Navi2016]

Hi,

I read about the fixes to avoid the php-fpm reload/restart in this doc:
https://deployer.org/docs/7.x/avoid-php-fpm-reloading

But is there also a known fix for Apache 2.4?

Just using php-fpm restart after a deployment works fine, but is not an option for production.
Simply clearing the opcache does not seem to do enough!

[NeuralClone]

I realize I'm a bit late in responding to this, but I ran into this exact same problem recently and have a possible solution. Apache doesn't appear to have support for this out of the box. If it does, I haven't been able to find an officially supported solution.

However, the Etsy realdoc Apache module was written for this purpose. There isn't much documentation for it. But it's pretty easy to use and does the trick in my case.

[rajpt]

Same issue, for apache i need to reload php-fpm to pickup latest deployment from symlink. Any suggestions? Thank you.

[NeuralClone]

The only option I've found for Apache is the Etsy realdoc module I mentioned above. It provides functionality similar to the Nginx $realpath_root variable. You'll need root access to compile and install it.

If you have a cPanel managed server, configuration is a little more complicated. You'll need to reconfigure the document root for your primary domain (defaults to /home/<user>/public_html) or the configuration outlined in the realdoc documentation won't work.

[rajpt]

Thank you, i am looking something similar to Nginx in apache.

[khoibv]

After searching, I decided to reload php-fpm with Apache.
If you want to allow deployer to reload php-fpm service only (but cannot reload another services):

echo 'deployer ALL= NOPASSWD: /bin/systemctl reload php8.2-fpm' > /etc/sudoers.d/91-deployer-user

[lucasinteractive]

Setting opcache.revalidate_path = 1 in php.ini or .user.ini mostely works with apache.

(Found this cheat a while ago here: PHP opcache reset + symlink-style deployment - Stack Overflow)

[NeuralClone]

Oh, interesting. I'll have to look into that some more. Thank you!

[bilogic]

Any new methods? This seems to do the job https://github.com/gordalina/cachetool

[NeuralClone]

Admittedly, I'm still trying to solve this problem over a year later since the other methods mentioned in this discussion (including my own suggestion) haven't worked very well.

The Etsy realdoc module should solve the problem, but configuring it correctly caused more problems than it was worth in a WHM/cPanel environment. It required making some risky changes to how cPanel auto-generates configuration files. There's a --graceful option when using the WHM/cPanel script to restart PHP-FPM, and that appears to not drop requests or cause them to fail.

@bilogic Conceptually, this tool looks like a strong contender to solve this problem. Thanks for the suggestion!

Edit: I just saw that there's already a Deployer recipe for this. I tried it out and it does exactly what I was looking for. Nice!

https://deployer.org/docs/7.x/contrib/cachetool

[sts-ryan-holton]

Struggling with the same thing, I have to keep rebooting the server which isn't great. What's the most current appropriate solution for this? I'm using Laravel and Laravel Octane on my Centos 9 Stream server

[NeuralClone]

@sts-ryan-holton The current recommendation in the docs is to set opcache.revalidate_path=1 in php.ini:

https://github.com/deployphp/deployer/blob/master/docs/avoid-php-fpm-reloading.md

I wasn't able to get that to work reliably in a cPanel managed environment (AlmaLinux on a VPS in my case) and ended up using CacheTool as per bilogic's suggestion above.

It can be easily integrated as a Deployer task:

https://deployer.org/docs/7.x/contrib/cachetool

I'm using Symfony 7.1 and Sulu 2.6. Either approach should work with Laravel as well.

[rajpt]

I endup doing this and it seems to be working fine in my app.

// restart services
task('restart:services', function () {
    // It doesn't automatically pick up the latest release symlink
    run('sudo systemctl reload php-fpm');
});

before('deploy:success', 'restart:services');