This app contains a Gulp configuration which will

• Restart the app on .js, .json or .hjs file changes via gulp-nodemon
• Automatically compile SASS stylesheets to CSS via gulp.watch and gulp-ruby-sass

Install Docker on your system.

• Install instructions for Mac OS X
• Install instructions for Ubuntu Linux
• Install instructions for other platforms

Install Docker Compose on your system.

• Python/pip: sudo pip install -U docker-compose
• Other: curl -L https://github.com/docker/compose/releases/download/1.1.0/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose; chmod +x /usr/local/bin/docker-compose

Run docker-compose build. It will

• install Ruby and SASS
• install Gulp globally
• install all dependencies from the package.json locally
• expose port 3000 to the host
• instruct the container to execute gulp --gulpfile app/gulpfile.js on start up.

Run docker-compose up to create and start the container. The app should then be running on your docker daemon on port 3030 (On OS X you can use boot2docker ip to find out the IP address).

Go ahead and change any SASS stylesheet inside app/public/sass, and watch it autmatically compile to CSS.

It appears that boot2docker (OS X, Windows) currently does not automatically sync the system clock with the host system after a host resumes from sleep. This becomes a problem due to the way nodemon detects file changes. That might cause it to go bananas, if the clocks on both systems are "too much" out of sync. Until this is fixed, you might use this workaround or simply do a manual sync via

/usr/local/bin/boot2docker ssh sudo ntpclient -s -h pool.ntp.org