Hi @kkk1
Did you have a look at the DataDog output documentation? Once you run through all the configuration, you can execute if you were running the k6 binary you would execute:
K6_STATSD_ENABLE_TAGS=true k6 run --out statsd script.js
For docker, you will need to pass the environment variables, similar to Running tests in docker having issue - #2 by simme.
I hope this helps.