Docker Cache Hack (sort of)

Vagrantfile

Vagrant.configure(2) do |config|

config.vm.box = "parallels/ubuntu-12.04"

  config.vm.network "forwarded_port", guest: 80, host: 8080
  config.vm.network "forwarded_port", guest: 6379, host: 6380
  # config.vm.network "public_network"
  config.vm.network "private_network", ip: "192.168.2.123"

  # Install docker using provisioner
  config.vm.provision "docker"

  # Check if we have a local tar of the image we want, if so load it into docker
  config.vm.provision "shell", inline: "[ -n '$(docker images -q dockerfile/redis)' ] || [ -f /vagrant/dockerfile/redis.tar ] && docker load < /vagrant/dockerfile/redis.tar"
  
  # Use the provisioner to run it...
  config.vm.provision "docker" do |d|
    d.run "redis",
      image: "dockerfile/redis",
      cmd: "--dir /var/redis",
      args: "-v '/vagrant/redis:/var/redis' -p 6379:6379"
  end
  
  # Check if we have an output location...we could flatten the file system and remove this command...
  config.vm.provision "shell", inline: "[ -d /vagrant/dockerfile ] || mkdir /vagrant/dockerfile"
  
  # Finally, if we dont have a copy of the tar already (ie first provision) then we download it to the vagrant share ready for next provision...
  config.vm.provision "shell", inline: "[ -f /vagrant/dockerfile/redis.tar ] || docker save dockerfile/redis > /vagrant/dockerfile/redis.tar"

end