docker run -it -p 50000:3000 richardchin/vvg:v1 /bin/bash start2.sh
where 50000 is the port that the api server is mapped to.
Then open a URL to /<you_ip_addr>:50000
Note that V2 allows it to run without a tty and stdin, so the -it flag is not needed. Means it will run from a Mesos orchestration.