Configuring boot2docker to use NFS on an OSX machine

Configuring Boot2Docker to use NFS on an OSX based machine

To improve the speed of Boot2Docker drastically, you will want to set it up to use NFS.
You will need to do the following once on your host machine:
- Add this to /etc/exports on your mac
```
# BOOT2-DOCKER-BEGIN
/Users 192.168.59.103 -alldirs -mapall=501:20
# BOOT2-DOCKER-END
```
- Run this command on your host machine
  
  sudo nfsd restart
Then Start boot2docker and connect to the VM with ssh by doing the following:
```
boot2docker up
boot2docker ssh
```
Within boot2docker do the following
- Open the the /var/lib/boot2docker/bootlocal.sh file for editing with the following command:
sudo vi /var/lib/boot2docker/bootlocal.sh
- Then add the following content to that script.
```
#!/bin/sh
sudo umount /Users
sudo /usr/local/etc/init.d/nfs-client start
sudo mount -t nfs -o rw --actimeo=2 192.168.59.3:/Users /Users
```
- Then run the following
```
sudo chmod +x /var/lib/boot2docker/bootlocal.sh
```
To test, restart boot2docker, confirm then run df to confirm. You should see something like the following:
```
192.168.59.3:/Users     XG    XG    XG  X% /Users
```
You're all done. :)