I have just started to experiment with Using IRIS in Docker.
My first objective was to be able to enable global persistence within a Docker container. Using the following command I have managed to achieve this:
docker run --detach --publish 52773:52773 --volume /data/dur:/dur --env ISC_DATA_DIRECTORY=/dur/iconfig --name iris21 store/intersystems/iris-community:2020.1.0.199.0
Within this container, I have created a simple global:
for i=1:1:10 set ^tmp(i)=""