Shell provision for ubuntu-based vagrant machine to install latest docker daemon (1.9.1)

install-docker.sh

export DEBIAN_FRONTEND=noninteractive

# update repository
apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
echo 'deb https://apt.dockerproject.org/repo ubuntu-trusty main' > /etc/apt/sources.list.d/docker.list
apt-get update
apt-get upgrade -y
apt-get autoremove --purge -y
apt-get purge -y lxc-docker

# install docker-engine and docker-compose
apt-get install -y linux-image-extra-$(uname -r) python-pip python-dev docker-engine
pip install docker-compose

# configure docker daemon
FILE=/etc/default/docker
LINE='DOCKER_OPTS="-H 0.0.0.0:2375"'
grep -q "$LINE" $FILE || sed -i '/#DOCKER_OPTS/a '"$LINE"'' $FILE

# run docker daemon
update-rc.d docker defaults
service docker restart

# add vagrant user to docker group
usermod -aG docker vagrant

# Adjust memory and swap accounting
sed -e 's/GRUB_CMDLINE_LINUX=""/GRUB_CMDLINE_LINUX="cgroup_enable=memory swapaccount=1"/' -i /etc/default/grub
update-grub

# update firewall
sed -e 's/DEFAULT_FORWARD_POLICY="DROP"/DEFAULT_FORWARD_POLICY="ACCEPT"/' -i /etc/default/ufw
ufw allow 2375/tcp

Vagrantfile example

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

# All Vagrant configuration is done below. The "2" in Vagrant.configure
# configures the configuration version (we support older styles for
# backwards compatibility). Please don't change it unless you know what
# you're doing.
Vagrant.configure(2) do |config|
  # The most common configuration options are documented and commented below.
  # For a complete reference, please see the online documentation at
  # https://docs.vagrantup.com.

  # Every Vagrant development environment requires a box. You can search for
  # boxes at https://atlas.hashicorp.com/search.
  config.vm.box = "ubuntu/trusty64"

  # Disable automatic box update checking. If you disable this, then
  # boxes will only be checked for updates when the user runs
  # `vagrant box outdated`. This is not recommended.
  # config.vm.box_check_update = false

  # Create a forwarded port mapping which allows access to a specific port
  # within the machine from a port on the host machine. In the example below,
  # accessing "localhost:8080" will access port 80 on the guest machine.
  # config.vm.network "forwarded_port", guest: 80, host: 8080

  # Create a private network, which allows host-only access to the machine
  # using a specific IP.
  config.vm.network "private_network", ip: "192.168.33.11"

  # Create a public network, which generally matched to bridged network.
  # Bridged networks make the machine appear as another physical device on
  # your network.
  # config.vm.network "public_network"

  # Share an additional folder to the guest VM. The first argument is
  # the path on the host to the actual folder. The second argument is
  # the path on the guest to mount the folder. And the optional third
  # argument is a set of non-required options.
  # config.vm.synced_folder "../data", "/vagrant_data"

  config.ssh.forward_agent = true
  config.ssh.insert_key = false

  # Provider-specific configuration so you can fine-tune various
  # backing providers for Vagrant. These expose provider-specific options.
  # Example for VirtualBox:
  #
  config.vm.provider "virtualbox" do |vb|
    # Display the VirtualBox GUI when booting the machine
    # vb.gui = true
  
    # Customize the amount of memory on the VM:
    vb.memory = "1024"

    # Assign additional cores to the guest OS.
    vb.customize ["modifyvm", :id,
      "--cpus", 2,
      "--pae", "on",
      "--ioapic", "on",
      "--rtcuseutc", "off"
    ]
  end
  #
  # View the documentation for the provider you are using for more
  # information on available options.

  # Define a Vagrant Push strategy for pushing to Atlas. Other push strategies
  # such as FTP and Heroku are also available. See the documentation at
  # https://docs.vagrantup.com/v2/push/atlas.html for more information.
  # config.push.define "atlas" do |push|
  #   push.app = "YOUR_ATLAS_USERNAME/YOUR_APPLICATION_NAME"
  # end

  # Enable provisioning with a shell script. Additional provisioners such as
  # Puppet, Chef, Ansible, Salt, and Docker are also available. Please see the
  # documentation for more information about their specific syntax and use.
  # config.vm.provision "shell", inline: <<-SHELL
  #   sudo apt-get update
  #   sudo apt-get install -y apache2
  # SHELL
  config.vm.provision "shell", path: "install-docker.sh"
end