Explanations: The script creates a `/var/log` mount point in RAM. So any writing of the log to the `/var/log` folder will not actually be written to disk (in this case to the sd card for a raspberry card) but directly to RAM. By default, every hour, the CRON will launch a synchronization of the RAM to the folder located on the physical disk. The script will also make this copy of RAM to disk in case of machine shutdown (but cannot do it in case of power failure). This way you avoid excessive writing on the SD card.
The script [log2ram](https://github.com/azlux/log2ram) can work on every linux system. So you can use it with your own daemon manager if you don't have systemd.
-`SIZE`: defines the size the log folder will reserve into the RAM (default is 40M).
-`USE_RSYNC`: Can be set to `true` if you prefer ´rsync´ rather than ´cp´. I use the command `cp -u` and `rsync -X`, I don't copy the all folder every time for optimization.
By default Log2Ram writes to the HardDisk every hour. If you think this is too much, you can make the write every day by moving the cron file to daily: `sudo mv /etc/cron.hourly/log2ram /etc/cron.daily/log2ram`.
If you have issue with apache2, you can try to add `apache2.service` next to other services on the `Before` parameter in `/etc/systemd/system/log2ram.service` it will solve the pb