Bind connection to particular ip address

[ivandbarron]

I copy/paste Morsel example application (but change port number):

using Morsel
app = Morsel.app()
route(app, GET | POST | PUT, "/") do req, res
    "This is the root"
end
get(app, "/about") do req, res
    "This app is running on Morsel"
end
start(app, 8080)

but because it's deployed in redhat openshift environment it fail with next error:

ERROR: I/O object not initialized

Going deeper i try with a socket server in same environment (without Morsel):

server = listen(8080)
while true
  conn = accept(server)
  @async begin
    try
      while true
        line = readline(conn)
        println(line)
        write(conn, line)
      end
    catch ex
      print("connection ended with error $ex")
    end
  end
end

failed again:
ERROR: cannot bind to port, may already be in use or access denied

but after i use ip address that openshift specify in environment var $OPENSHIFT_JULIA_IP, it works without problems, every time:

server = listen(ip"xxx.x.xxx.xxx", 8080)   
...
# always works!! 

is possible bind to particular ip address?

app = Morsel.app(ip"xxx.x.xxx.xxx") # maybe ?
...
start(app, ip"xxx.x.xxx.xxx", 8080) # maybe here :) ?