Shell function to let a MacOSX user load a docker-machine environment and update OSX routes to access docker0 IPs directly

.bash_profile_docker_osx.sh

# Load the docker-machine environment and update the route to let MacOSX access containers IPs.                                                                                                                    
 denv() {                                                                                                                                                                                                           
     eval $(docker-machine env $1)                                                                                                                                                                                  
     SUBNET=$(docker network inspect $(docker network ls | grep bridge | awk '{ print $1; }') | grep Subnet | awk '{ gsub(/"/, "", $2); print $2; }')                                                               
     sudo route -n delete $SUBNET                                                                                                                                                                                   
     sudo route -n add $SUBNET $(docker-machine ip $1)                                                                                                                                                              
     echo "[docker-machine] $1 env loaded with subnet $SUBNET."                                                                                                                                                     
 }