docker.rake

namespace :docker do
  desc "Build docker images"
  task :build do |t, args|
    require 'securerandom'

    images = ENV['IMAGES']
    images = images.split ","

    root = File.expand_path("../../../", __FILE__)

    filename = File.join(root, "Dockerfile")
    git_revision = `git rev-parse --short HEAD`.strip

    dockerfile = File.read(filename)

    secret_key = SecureRandom.hex(64)

    dockerfile.gsub!(/ENV GIT_REVISION .*\n/, "ENV GIT_REVISION #{git_revision}\n")
    dockerfile.gsub!(/ENV SECRET_KEY_BASE .*\n/, "ENV SECRET_KEY_BASE #{secret_key}\n")

    File.open(filename, "w") {|f| f.puts dockerfile}

    images.each do |img|
      path = (img == "app_name") ? root : File.join(root, "container", img)
      remote_img = (img == "app_name") ? "app_name" : "app_name-#{img}"
      system "docker build -t 'quay.io/mikamai/#{remote_img}' #{path}"
    end
  end

  desc "Push docker images"
  task :push do |t, args|
    images = ENV['IMAGES'] || "rgts"
    images = images.split ","

    root = File.expand_path("../../../", __FILE__)

    images.each do |img|
      remote_img = (img == "rgts") ? "rgts" : "rgts-#{img}"
      system "docker push 'quay.io/mikamai/#{remote_img}'"
    end
  end
end