Start the UI has the following command but server name is not functioning it's fnserver
Wrong Command
docker run --rm -it --link functions:api -p 4000:4000 -e "API_URL=http://api:8080" fnproject/ui
Correct command
docker run --rm -it --link fnserver:api -p 4000:4000 -e "API_URL=http://api:8080" fnproject/ui