Here is the steps to recreate:
On MacBook Pro running macOS Sierra version 10.12.2.
Virtualbox:
5.1.12r112440
Vagrant:
Vagrant 1.9.1

`git clone https://github.com/coreos/coreos-vagrant`
`cd coreos-vagrant`

Comment out line 127 and 128 of the Vagrantfile and add:
config.vm.network "private_network", ip: "172.17.8.150"

Uncomment line 132 to enable NFS for sharing the host machine into the 
coreos-vagrant VM.

run:
'vagrant up'
ssh in:
'vagrant ssh'

Then run, from within the coreos shell:
`docker run -d -p 80:80 coreos/apache /usr/sbin/apache2ctl -D FOREGROUND`

Then go to: http://172.17.8.150/ in your browser. You'll see the text:
"It works!

This is the default web page for this server.

The web server software is running but no content has been added, yet."

Then try to mount the volume the /home/core/share folder by running:
`docker run -v /home/core/share:/var/www coreos/apache`

I get error:
"docker: Error response from daemon: No command specified."

That is pretty much as far as I've made it. 








On Saturday, December 31, 2016 at 3:04:52 PM UTC-8, Michael Chavez wrote:
>
> Hello CoreOS Dev Google Group,
>
> I am a super noob. 
>
> I got CoreOS running on my Macbook using Vagrant. I am able to get the 
> Apache2 Ubuntu Default Page. What I want to do for example, is being able 
> to modify/replace the file at /var/www/html/index.html. Later I want to use 
> the technique to develop Node.js and WordPress apps locally and deploy to 
> remote webservers, ala "Cloud Native" style.
>
> I am able to have files shared from local directory on my Macbook to the 
> CoreOS by adding/uncommenting this from the Vagrant file:
>       config.vm.synced_folder ".", "/home/core/share", id: "core", :nfs => 
> true, :mount_options => ['nolock,vers=3,udp']
> That works in syncing the "share" folder inside CoreOS running inside of 
> Vagrant to my local directory on Macbook, but I can't figure out how to get 
> that to sync to the container inside of CoreOS running Ubuntu with Apache. 
>
> I've been following these tutorials:
> https://coreos.com/os/docs/latest/booting-on-vagrant.html
> https://github.com/coreos/coreos-vagrant
> https://coreos.com/os/docs/latest/getting-started-with-docker.html
> https://docs.docker.com/engine/tutorials/dockervolumes (this is where 
> things don't work for me)
>
> I am going about this the right way? Should I just use Docker for Mac and 
> cut the CoreOS on Vagrant out (I don't want to necessarily do that)? 
>
> Any help would be greatly appreciated!
>
> Thanks and happy new years!
>
> Cheers,
> Michael
>

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