User Server

A demo rails app as a simple app that authenticates users and renders PDFs using Prawn and Markdown, the authentication web app is based on Devise and MongoDB, this application will be used for learning purposes, also it makes part of Dockerizing the Gem, a meetup held in Cali on November 4, 2017

Essential Dependencies

• Ruby 2.4.2
• Rails 5.1.4
• bootstrap 4.alpha
• MongoDB 3.4
• Mongoid 6.1.0

Configuration

copy all example files (config files) to real ones

cp config/mongoid.yml.example config/mongoid.yml

cp config/secrets.yml.example config/secrets.yml

install all dependencies

bundle install

Run the server

rails server

Server will run on localhost:3000

Deployment - Docker

Assumptions

• you have already installed a docker environment, you can use docker-machine or the docker engine itself
• optionally, you could execute the app using docker-compose

Deployment

if you are using docker-machine remember to attach the required environment variables

eval $(docker-machine env development)

Pure Docker implementation

Build the user server machine

docker build -t user_server .

Running the container

docker run -itP -v $(pwd):/app user_server

Note type docker ps to see what port you must use in your browser for accessing the app, also if you are using docker-machine you must use the docker-machine ip instead your local address docker-machine ip “${DOCKER_MACHINE_NAME}”

Docker compose

you also can use docker compose for building and running the containers on a production-like environment, we have a dockerfile set specifically designed for production, those files are

• Dockerfile-app
• Dockerfile-nginx

We have a shared volume for accessing directly to assets between ngnix and app services

docker-compose build

docker-compose up

Now you can access to the application on port 80 + (NGINX, puma, mongodb) using your local address or the docker-machine address if you are using it...

Enjoy it!