circleci configuration and docker build

scripts/build_image_master.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+docker build -f Dockerfile.prod -t zachblind/greenlight:master .
+
+docker login -e zachary.chai@blindsidenetworks.com -u $DOCKER_USER -p $DOCKER_PASS
+docker push zachblind/greenlight:master

scripts/default_start.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+rake db:migrate
+
+exec bundle exec puma -C config/puma.rb