Feature Request: Add a static IP or run shell script

[vikas027]

I am looking out to have an option of assigning a static IP in my decking.yaml/json file. This is sometimes required to pass on the IP to the other containers in the list.

One way of doing this would be by providing an option of running a command (or a shell script) between two containers and using the value as a variable. I could have used docker inspect like this. Thanks in advance for your time on this.