Influxdb security know-how

Hi Experts,

I would like to hear few aspects for influx db security, can somebody can help me here?

  1. what are all the different authentication mechanism influx-db supports (example: basic authentication …etc) ?? and which authentication mechanism is more safe ?

  2. How to Harden Docker image from attackers if influxdb is docker based ?

  3. how the vulnerability scanning is done for influxdb??