add /var/lib/plausible

[ruslandoga]

Changes

This PR aims to simplify permissions in $DATA_DIR volume mounted into Plausible container. After adding automatic TLS we would be mounting a volume in docker-compose.yml by default to persist the certificates across restarts, so I thought we might as well allow writes for it by default too.

Before

User needs to create a directory on the host and set the correct permissions manually.
After that it can be mounted into the container.

_console

$ cd hosting
$ mkdir ./data
$ chown -R 999:nogroup ./data

_{docker-compose.yml}

plausible:
  volumes:
    - ./data:/data
  environment:
    - DATA_DIR=/data

After

A named volume can be mounted into the container without any extra steps.

_{docker-compose.yml}

plausible:
  volumes:
    - plausible-data:/var/lib/plausible
    
volumes:
  plausible-data:

Tests

• Automated tests have been added

Changelog

• Entry has been added to changelog

Documentation

• This change does not need a documentation update

Dark mode

• This PR does not change the UI