Ruby project using docker

README.md

My App

Running

Setup:

% docker-compose run --rm -u root web bash -c "mkdir -p /bundle/vendor && chown ruby /bundle/vendor"
% docker-compose run --rm web bundle install
% docker-compose run --rm web bundle exec rake db:setup

See setup.

Run:

% docker-compose up web

And go to localhost:3000.

docker-compose.yml

version: "2"

services:
  web:
    build: .
    volumes:
      - .:/app
      - bundle_path:/bundle
    environment:
      - BUNDLE_PATH=/bundle/vendor
      - BUNDLE_APP_CONFIG=/app/.bundle
      - BUNDLE_BIN=/bundle/vendor/bin
      - GEM_HOME=/bundle/vendor
    user: ruby
    working_dir: /app
    command: bundle exec puma -p 3000 config.ru
    ports:
      - "3000:3000"
    links:
      - db

  db:
    image: postgres
    volumes:
      - db:/var/lib/postgresql/data
    expose:
      - "5432"

volumes:
  bundle_path:
  db:

Dockerfile

from ruby

env DEBIAN_FRONTEND=noninteractive \
  NODE_VERSION=10.1.0

run sed -i "/deb-src/d" /etc/apt/sources.list && \
  wget -q -O- https://dl.google.com/linux/linux_signing_key.pub | apt-key add - && \
  echo "deb http://dl.google.com/linux/chrome/deb/ stable main" > /etc/apt/sources.list.d/google.list && \
  apt-get update && \
  apt-get install -y build-essential libpq-dev postgresql-client google-chrome-stable && \
  curl -sSL "https://nodejs.org/dist/v$NODE_VERSION/node-v$NODE_VERSION-linux-x64.tar.xz" | tar xfJ - -C /usr/local --strip-components=1 && \
  npm install npm -g && \
  wget -q -O- https://yarnpkg.com/latest.tar.gz | tar xfz - -C /opt && \
  mv /opt/yarn-v* /opt/yarn && ln -s /opt/yarn/bin/yarn /usr/local/bin/yarn && \
  useradd -m -s /bin/bash -u 1000 ruby

Gemfile

source "https://rubygems.org"

gem "puma"
# gem "rails"
# gem "sinatra"

setup

#!/bin/bash

set -xe

# Uncomment this line and ensure your config/database.yml.sample is ready to run with docker.
# cp config/database.yml.sample config/database.yml

docker-compose run --rm -u root web bash -c "mkdir -p /bundle/vendor && chown ruby /bundle/vendor"
docker-compose run --rm web bundle install
# Uncomment this line if you are using Ruby on Rails
# docker-compose run --rm web bundle exec rake db:create
# docker-compose run --rm web bundle exec rake db:migrate