Rails(+ Nginx, Unicorn) Dockerfile

Usage

Create Dockerfile to your project and paste below code.

# Dockerfile
FROM exocen/docker-rails
MAINTAINER Exocen

# Add here your preinstall lib(e.g. imagemagick, mysql lib, pg lib, ssh config)

EXPOSE 80

Add unicorn gem(maybe uncomment gem 'unicorn' in Gemfile)

Build and run docker


# build your dockerfile
$ docker build -t your/project .

# run container
$ docker run -d -p 80:80 -e SECRET_KEY_BASE=secretkey your/project

Custom pre-install lib

if your rails app required lib like imagemagick(or mysql) you must install that before Install Rails App section

Install imagemagick

RUN apt-get -qq -y install libmagickwand-dev imagemagick

Install MySQL(for mysql, mysql2 gem)

RUN apt-get install -qq -y mysql-server mysql-client libmysqlclient-dev

Install PostgreSQL lib(for pg gem)

RUN echo "deb http://apt.postgresql.org/pub/repos/apt/ trusty-pgdg main" > /etc/apt/sources.list.d/pgdg.list && \
    apt-get update && \
    DEBIAN_FRONTEND=noninteractive \
    apt-get install -y --force-yes libpq-dev

Access bitbucket private repository

RUN mkdir /root/.ssh/
ADD id_rsa /root/.ssh/id_rsa
RUN touch /root/.ssh/known_hosts
RUN ssh-keyscan -t rsa bitbucket.org >> /root/.ssh/known_hosts

Copy your ~/.ssh/id_rsa to id_rsa for bitbucket connection. if you don't need to bitbucket connection, create blank id_rsa. don't forget add id_rsa to .gitignore

Customize Nginx, Unicorn, foreman config

Nginx

# your Dockerfile
...
ADD config/your-custom-nginx.conf /etc/nginx/sites-enabled/default
...

Unicorn

place your unicorn config to config/unicorn.rb

foreman

place your Procfile to app root

Exocen/docker-rails