Vagrant, Ansible, Rbenv and Ruby on Rails

rails-app.yml

---
- hosts: all
  vars:
    app: rails-app
    app_path: /vagrant
    app_user: vagrant
    ruby: 2.1.0
    packages:
      - software-properties-common
      - build-essential
      - runit
      - curl
      - wget
      - libsqlite3-dev
      - nodejs
  handlers:
    - name: restart app
      command: sv restart {{app}}
      sudo: yes

    - name: rbenv rehash
      shell: rbenv rehash
      environment:
        PATH: /home/{{app_user}}/.rbenv/shims:/home/{{app_user}}/.rbenv/bin:{{lookup('env', 'PATH')}}
  tasks:
    - command: apt-get update
      sudo: yes

    - apt: name={{item}} state=present
      sudo: yes
      with_items: packages

    - name: rbenv build dependencies
      apt: pkg={{item}} state=present
      sudo: yes
      with_items:
        - build-essential
        - git-core
        - patch
        - zlib1g-dev
        - libssl-dev
        - libreadline-dev

    - git: depth=1 update=no repo=git://github.com/sstephenson/rbenv.git dest=.rbenv version=v0.4.0

    - copy: src=files/rbenv.sh dest=/etc/profile.d/rbenv.sh owner=root group=root mode=0755
      sudo: yes

    - command: rbenv versions
      environment:
        PATH: /home/{{app_user}}/.rbenv/shims:/home/{{app_user}}/.rbenv/bin:{{lookup('env', 'PATH')}}
      register: ruby_installed
      failed_when: "'{{ruby}}' not in ruby_installed.stdout"
      changed_when: False
      ignore_errors: yes

    - command: mktemp -d
      register: tempdir
      when: ruby_installed|failed

    - git: depth=1 repo=git://github.com/sstephenson/ruby-build.git dest={{tempdir.stdout}}/ruby-build
      when: ruby_installed|failed

    - command: ./install.sh chdir={{tempdir.stdout}}/ruby-build
      when: ruby_installed|failed
      sudo: yes

    - file: path={{tempdir.stdout}} state=absent
      when: ruby_installed|failed

    - command: rbenv install {{ruby}}
      environment:
        PATH: /home/{{app_user}}/.rbenv/shims:/home/{{app_user}}/.rbenv/bin:{{lookup('env', 'PATH')}}
      when: ruby_installed|failed

    - command: rbenv global {{ruby}}
      environment:
        PATH: /home/{{app_user}}/.rbenv/shims:/home/{{app_user}}/.rbenv/bin:{{lookup('env', 'PATH')}}
      when: ruby_installed|failed

    - command: gem install bundler
      environment:
        PATH: /home/{{app_user}}/.rbenv/shims:/home/{{app_user}}/.rbenv/bin:{{lookup('env', 'PATH')}}

    - shell: rbenv rehash
      environment:
        PATH: /home/{{app_user}}/.rbenv/shims:/home/{{app_user}}/.rbenv/bin:{{lookup('env', 'PATH')}}

    - shell: chdir={{app_path}} bundle
      environment:
        PATH: /home/{{app_user}}/.rbenv/shims:/home/{{app_user}}/.rbenv/bin:{{lookup('env', 'PATH')}}
      notify:
        - rbenv rehash

    - file: path="/etc/service/{{app}}" state=directory recurse=yes owner="{{app_user}}"
      sudo: yes

    - template: src=templates/run dest="/etc/service/{{app}}/run" mode="775"
      sudo: yes
      notify:
        - restart app

    - name: open browser
      local_action: command open http://localhost:3000

rbenv.sh

#!/bin/bash
export PATH=$HOME/.rbenv/bin:/usr/local/bin:$PATH
export RBENV_ROOT="$HOME/.rbenv"
eval "$(rbenv init -)"

run

#!/bin/bash -e
PATH=/home/{{app_user}}/.rbenv/shims:/home/{{app_user}}/.rbenv/bin:$PATH
cd {{app_path}}
exec chpst -u {{app_user}} bundle exec rails server --binding 0.0.0.0 2>&1

Vagrantfile

# -*- mode: ruby -*-
# vi: set ft=ruby :

# Vagrantfile API/syntax version. Don't touch unless you know what you're doing!
VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  config.vm.network :forwarded_port, guest: 3000, host: 3000

  config.vm.box     = "precise"
  config.vm.box_url = "http://cloud-images.ubuntu.com/vagrant/precise/current/precise-server-cloudimg-amd64-vagrant-disk1.box"
  config.vm.synced_folder ".", "/vagrant"

  config.vm.provision "ansible" do |ansible|
    ansible.playbook = "ansible/rails-app.yml"
  end

  config.vm.provider :virtualbox do |vb|
    vb.customize ["modifyvm", :id, "--memory", "1024"]
  end

  if Vagrant.has_plugin?("vagrant-cachier")
    # Configure cached packages to be shared between instances of the same base box.
    # More info on http://fgrehm.viewdocs.io/vagrant-cachier/usage
    config.cache.scope = :box

    # OPTIONAL: If you are using VirtualBox, you might want to use that to enable
    # NFS for shared folders. This is also very useful for vagrant-libvirt if you
    # want bi-directional sync
    config.cache.synced_folder_opts = {
      type: :nfs,
      # The nolock option can be useful for an NFSv3 client that wants to avoid the
      # NLM sideband protocol. Without this option, apt-get might hang if it tries
      # to lock files needed for /var/cache/* operations. All of this can be avoided
      # by using NFSv4 everywhere. Please note that the tcp option is not the default.
      mount_options: ['rw', 'vers=3', 'tcp', 'nolock']
    }
    # For more information please check http://docs.vagrantup.com/v2/synced-folders/basic_usage.html
  end
end