Permission denied in /var/lib/php/session when trying to run session_start()

[crittermike]

This was uncovered when dropping this docker-compose.yml file into the root of a Grav CMS codebase and running docker-compose up. You end up with this error:

Manually opening up a shell inside the container and running chmod -R 777 /var/lib/php/session fixes it.

[grayside]

It looks like we've configured that session path in https://github.com/phase2/docker-apache-php-base/blob/master/root/etc/confd/templates/www.conf.tmpl#L230, so the next step is to make sure that directory is created and correctly permissioned... which should be done in docker-apache-php-base afterall.

Do some PHP apps attempt to manage this directory if it's missing? If so, could handling it in the image cause conflicts?

[febbraro]

What user needs to own this? apache? I'd prefer not to open up the permissions entirely... can you try setting the owner/group to apache and see if that does the trick?

[crittermike]

@febbraro confirmed that it works after running:

[root@497f3e044482 /]# chgrp -R apache /var/lib/php/session
[root@497f3e044482 /]# chown -R apache /var/lib/php/session

Also, just FWIW, just running the chgrp wasn't enough.

[febbraro]

Interested in trying to PR a script like this for that dir?

https://github.com/phase2/docker-apache-php-base/blob/master/root/etc/fix-attrs.d/01-apache-logs-dir