Can't use arguments with EXPOSE

[stephbat]

I get this error when I try to use arguments with EXPOSE

Line 104: -> EXPOSE $CI_SPARK_DRIVER_PORT ERROR: Invalid parameters for command.. Reference -> https://docs.docker.com/engine/reference/builder/

The dockerfile is: FROM ubuntu:18.04 ARG CI_SPARK_DRIVER_PORT=5001 EXPOSE $CI_SPARK_DRIVER_PORT

[taybin]

I'm running into this as well.