Provisioning rails app in docker

docker-compose.yml

db:
  image: postgres:9.5
  container_name: postgres
  ports:
    - "5432:5432"
  environment:
    - POSTGRES_PASSWORD=root
web:
  build: .
  container_name: rails
  command: rails s -b 0.0.0.0
  volumes:
    - .:/app
  ports:
    - "3000:3000"
  links:
    - db
  environment:
    - DEBUG=true
    - RAILS_ENV=development

Dockerfile

FROM ruby:2.2.3

RUN apt-get update && apt-get install -y nodejs build-essential libpq-dev imagemagick libmagickwand-dev --no-install-recommends && rm -rf /var/lib/apt/lists/*

# Setup working directory
RUN mkdir -p /app
WORKDIR /app
COPY . ./
VOLUME /app

# Install gems
RUN bundle install --local --path vendor/bundle/

error.log

vagrant@vagrant-ubuntu-trusty-64:~$ docker logs rails
/app/vendor/bundle/ruby/2.2.0/gems/pg-0.18.3/lib/pg.rb:4:in `require': libruby.so.2.2: cannot open shared object file: No such file or directory - /app/vendor/bundle/ruby/2.2.0/gems/pg-0.18.3/lib/pg_ext.so (LoadError)
        from /app/vendor/bundle/ruby/2.2.0/gems/pg-0.18.3/lib/pg.rb:4:in `<top (required)>'
        from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in `require'
        from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
        from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in `each'
        from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in `block in require'
        from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in `each'
        from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in `require'
        from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler.rb:134:in `require'
        from /app/config/application.rb:8:in `<top (required)>'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:78:in `require'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:78:in `block in server'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:75:in `tap'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:75:in `server'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
        from /app/vendor/bundle/ruby/2.2.0/gems/railties-4.2.4/lib/rails/commands.rb:17:in `<top (required)>'
        from bin/rails:4:in `require'
        from bin/rails:4:in `<main>'

Gemfile

source 'https://rubygems.org'

ruby '2.2.2'
gem 'rails', '4.2.4'
gem 'mysql2', '0.4.1', platforms: :ruby
gem 'activerecord-session_store', github: 'rails/activerecord-session_store'

group :production do
  gem 'therubyracer', platforms: :ruby
  gem 'rails_12factor'
  gem 'unicorn'
  gem 'capistrano'
end

gem 'devise'
gem 'omniauth-facebook'
gem 'simple_form'
gem 'cocoon'
gem 'sidekiq'
gem 'apostle-rails'             # apostle.io integration
gem 'gibbon'                    # mailchimp integration
gem 'mixpanel-ruby'             # mixpanel integration
gem 'rest-client'                  # required for hiveage

gem 'haml-rails'
gem 'sass-rails', '~> 4.0.0'
gem 'compass-rails'
gem 'uglifier', '>= 1.3.0'
gem 'redcarpet'

gem 'remotipart'

gem 'mini_magick'
gem 'carrierwave'

gem 'figaro'
gem 'whenever', require: false # for setting up cronjobs

group :development do
  gem 'quiet_assets'
  gem 'awesome_print'
  gem 'better_errors'
  gem 'binding_of_caller'
end

Vagrantfile

Vagrant.configure(2) do |config|
  config.vm.box = 'ubuntu/trusty64'

  config.vm.box_check_update = false
  config.vm.network :private_network, ip: '10.0.0.40'

  unless Vagrant.has_plugin?('vagrant-docker-compose')
    raise 'vagrant-docker-compose is not installed! Please run: vagrant plugin install vagrant-docker-compose'
  end

  config.vm.provider 'virtualbox' do |v|
    v.name = 'jugglebee'
    v.customize ['modifyvm', :id, '--natdnshostresolver1', 'on']
    v.customize ['modifyvm', :id, '--natdnsproxy1', 'on']
    v.check_guest_additions = false
    v.functional_vboxsf     = false
    v.gui = false
    v.memory = 2048
    v.cpus = 1
  end

  config.vm.synced_folder '.', '/app', type: 'nfs'

  config.vm.provision :docker
  config.vm.provision :docker_compose, yml: '/app/docker-compose.yml', run: 'always', rebuild: true
end