LOG_LEVEL - level of logging (default INFO) SYSLOG_TARGET - optional host:port to send log messages to WIND_PIN - GPIO pin for wind sensor (default 22) GRAPHITE_PREFIX - prefix for the values sent to graphite (default weather) GRAPHITE_SERVER - where to send metrics (default localhost) USE_BME280 - also log readings from BME280 - temperature, humidity, pressure (default false)
Create an environment file at /etc/default/weather containing the environment variables desired from above
Copy the init script into /etc/systemd/system/ and register it with systemd
$ sudo cp init/wind.service /etc/systemd/system/weather.service
$ sudo systemctl enable weather.service
Created symlink from /etc/systemd/system/multi-user.target.wants/weather.service to /etc/systemd/system/weather.service.
Then you can start it
$ sudo systemctl start weather.service
To check it has started successfully have a look in syslog