docker run -p 9200:9200 -p 9300:9300 -e "discovery.type=single-node" docker.elastic.co/elasticsearch/elasticsearch:6.0.1
sudo docker build -t {image_name} . sudo docker run -i -t -v {project_local_path}:/railgun -p {outPort}:{inside port} {image_name}
sudo docker run -i -t -v ~/Desktop/Ruby/railgun/:/railgun -p 5000:3000 railgun-browser
sudo docker ps