InfluxDB does not require an explicit config file to run, if none is provided it has an “internal” default config, you can then override it with Env variables or config file.
the priority is EnvVariables → conf file → internal config.
You can look for more here.
InfluxDB is configured using the configuration file (
influxdb.conf) and environment variables. If you do not uncomment a configuration option, the system uses its default setting. The configuration settings in this document are set to their default settings.
You can get the default (internal) config by running influxd --config, put that into a file and change the influxDB “execution/startup” to run with influxd -config /etc/influxdb/influxdb.conf
