Resolved - issue seems to have been with the run docker command - changed .workspace to xx...
old:
docker run -it --privileged --env NODE_TLS_REJECT_UNAUTHORIZED=0 -p 3001:3001 -p 3006:3006 -v /dockertest1/dt1:/graphite/.worksplace -it icr.io/cpopen/maf-tools:9.0.0
new
docker run -it --privileged --env NODE_TLS_REJECT_UNAUTHORIZED=0 -p 3001:3001 -p 3006:3006 -v /dockertest1/dt1:/graphite/xx -it icr.io/cpopen/maf-tools:9.0.0