Luftdaten-Viewer Cron Job

Setup

Create “workbench” user:

useradd --shell=/bin/bash --create-home workbench

Install cron file:

curl --silent https://raw.githubusercontent.com/earthobservations/luftdatenpumpe/main/etc/luftdaten-viewer.cron > /etc/cron.d/luftdaten-viewer
curl --silent https://raw.githubusercontent.com/earthobservations/luftdatenpumpe/main/tools/pflock > /usr/local/bin/pflock
curl --silent https://raw.githubusercontent.com/earthobservations/luftdatenpumpe/main/tools/safewrite > /usr/local/bin/safewrite
chmod +x /usr/local/bin/pflock /usr/local/bin/safewrite

Notes

pflock

Please modify /usr/local/bin/pflock on CentOS systems as /var/lock does not yield appropriate permissions by default to use the /tmp directory:

/tmp/program-${name}.pflock

Data acquisition rate

Also, you might want to increase the data acquisition rate in /etc/cron.d/luftdaten-viewer:

# Run data import each 5 minutes
*/5     *   * * *   workbench       pflock luftdatenpumpe readings --country=BE --target=${tsdb_uri} >/dev/null 2>&1