config.logDirPath not respected when using Docker

[laur89]

Create container:

docker create --name='tplink-energy-monitor' 
    --net='host' 
    -e 'TCP_PORT_3000'='3000' 
    -v '/path/on/host/tplink-energy-monitor':'/config':'rw' 
    -v '/path/on/host/tplink-energy-monitor/logger-config.json':'/opt/tplink-monitor/logger-config.json':'ro' 
    jbarnett/tplink-energy-monitor npm start /config/logger-config.json

/path/on/host/tplink-energy-monitor/logger-config.json:

{
  "logDirPath": "/config/logs",
  "logIntervalSeconds": 2,
  "maxLogEntries": 302400
}

At least logIntervalSeconds is deffo picked up, but logfiles are still written to the default location, not into /path/on/host/tplink-energy-monitor/logs as expected.

Doing ls /config/logs from container works fine, ie directory itself exists.