do not close the php session

[Dantyk]

I installed a docker with baikal on a raspberry pi. I used Baikal server as a rest api. When querying the baikal server, disk space began to decrease. After a more detailed examination, I found that the files from the session php remain in the docker container - directory: /var/lib/docker/overlay2/3cd91b16159dc6baa381e6963f3f0e9fb5c45d69314afa5b592f8335579e04d3/merged/var/lib/php/sessions
I solved this by regularly deleting these files:
path=$(/usr/bin/docker inspect $(/usr/bin/docker ps -qa) | /usr/bin/jq -r 'map([.Name, .GraphDriver.Data.MergedDir]) | .[] | "(.[0]) (.[1])"' | /usr/bin/grep baikal | /usr/bin/cut -d' ' -f2)
/usr/bin/find $path/var/lib/php/sessions -type f -delete

But I don't think that's an ok solution.

[ckulka]

Hi @Dantyk ,

following https://stackoverflow.com/questions/654310/cleanup-php-session-files, it looks like this session behaviour can/should be fine-tuned in a php.ini file.

If I were to do it on my server, I would

1. create a new session-config.ini file
2. add the parameters from https://www.php.net/manual/en/session.configuration.php
3. mount it inside the container at /usr/local/etc/php/conf.d/session-config.ini

I'm not familiar enough with PHP to give advice on which session settings make sense, but the Baikal maintainers/community at https://github.com/sabre-io/Baikal might be able to help.

That all said, if you want to stick with deleting the files (which may cause issues if you delete files of active sessions), I would run the command inside the container:

# Find the container id. If you have a fixed name, you can of course just use that.
container_id=$(docker ps --filter "ancestor=ckulka/baikal" --quiet)

# Run command inside the container to delete PHP session files
/usr/bin/docker exec -it $container_id find /var/lib/php/sessions -type f -delete

I find it a bit cleaner and you should have fewer file permission issues. Well, assuming you don't already run it as root, which we all say we never do (for the usual reasons), but end up doing way too often anyway.

Hope this helps, let me know and I'll close out the issue.