Currently one needs to open UI to change the default password or to use a cumbersome passwordhash approach which is maybe OK for production but is not an optimal approach with day-to-day development when you need to respawn docker images again and again.
It'd be great to introduce a support of environment variables to setup a password for newly starting docker image of IRIS similarly it is being used in many other DBMS with docker usage approach.
Thank you for submitting the idea. The status has been changed to "Future consideration".
Stay tuned!