In fact I encountered the error of unable to pass the variable to

"ISC_IRIS_URL", "ISC_IAM_IAMGE","ISC_CA_CERT"

I suspect that the iam-setup.sh now working very well

As a work around, I hard code the variables in the docker-compose.yml

and run the 

sudo docker compose up -d 

again 

Sure, let me do it on Friday