You’re issue is that you’ve never exported your port.
In your before.sh.erb add
export port=4567
Then use the $port environment variable in your command to boot the container.
OOD goes from Starting → Running based on the connection.yml file. Basically if there’s not enough information here in the connection.yml OOD won’t create the buttons to connect to it.
We’re not going to change the state to Running because we don’t know how to connect to the application.
So it’s a simple fix - export the port variable in your before.sh.erb such that the connection.yml does actually get populated with the correct information.