when you change the PUID/PGID in the `.env` file, only the librenms
containers UID/GID are changes which causes permission issues with
rrdcached. rrdcached will still be running with UID=1000 and GID=1000.
As a result of that, no graphs will be rendered.
By adding:
```
- "PUID=${PUID}"
- "PGID=${PGID}"
```
to the rrdcache service the graphs will rendered properly because
rrdcached will also run with the same UID/GID as librenms
Signed-off-by: BlackEagle <ike.devolder@gmail.com>
Switch to s6-overlay as process supervisor
Prevent exposing Nginx and PHP version
Bind to unprivileged port (8000)
Remove php-fpm access log (already mirrored by nginx)
