image/build.rb

   1 # simple build file to be used locally by Sam
   2 #
   3 require 'pty'
   4
   5 $version = "1.0.17"
   6
   7 $docker_squash = "https://github.com/jwilder/docker-squash/releases/download/v0.2.0/docker-squash-linux-amd64-v0.2.0.tar.gz"
   8
   9 $base_image = "discourse/base:#{$version}"
  10 $image = "discourse/discourse:#{$version}"
  11 $fast_switch= "discourse/discourse_fast_switch:#{$version}"
  12 $test = "discourse/discourse_test:#{$version}"
  13
  14 if ENV["USER"] != "root"
  15   STDERR.puts "Build script must be ran as root due to docker-squash"
  16   exit 1
  17 end
  18
  19 def run(command)
  20   lines = []
  21   PTY.spawn(command) do |stdin, stdout, pid|
  22     begin
  23       stdin.each do |line|
  24         lines << line
  25         puts line
  26       end
  27     rescue Errno::EIO
  28       # we are done
  29     end
  30   end
  31
  32   lines
  33 end
  34
  35 def ensure_docker_squash
  36   return if File.exist?("docker-squash")
  37   run ("wget #{$docker_squash}")
  38   run ("tar -xzvf *.tar.gz")
  39   run ("rm -f docker-squash-linux*")
  40 end
  41
  42 ensure_docker_squash
  43
  44 def build(path, tag, is_base)
  45   lines = run("cd #{path} && docker build .")
  46   img = lines[-1]["successfully built ".length..-1].strip
  47
  48   run("docker save #{img} | ./docker-squash -t #{tag} -verbose #{is_base && "-from root"} | docker load")
  49 end
  50
  51 build("base",$base_image,true)
  52 build("discourse",$image,false)
  53 build("discourse_fast_switch",$fast_switch,false)
  54 build("discourse_test",$test,false)