Class: Ufo::Docker::Builder

Inherits:
Object
  • Object
show all
Includes:
Util
Defined in:
lib/ufo/docker/builder.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Util

#default_cluster, #default_params, #display_params, #execute, #pretty_time, #settings

Constructor Details

#initialize(options = {}) ⇒ Builder

Returns a new instance of Builder.



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# File 'lib/ufo/docker/builder.rb', line 16

def initialize(options={})
  @options = options
  @dockerfile = options[:dockerfile] || 'Dockerfile'
  @image_namespace = options[:image_namespace] || 'ufo'
end

Class Method Details

.build(options) ⇒ Object 



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# File 'lib/ufo/docker/builder.rb', line 8

def self.build(options)
  builder = Builder.new(options) # outside if because it need builder.full_image_name
  builder.build
  pusher = Pusher.new(nil, options)
  pusher.push
  builder
end

Instance Method Details

#build ⇒ Object 



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# File 'lib/ufo/docker/builder.rb', line 22

def build
  start_time = Time.now
  store_full_image_name

  command = "docker build -t #{full_image_name} -f #{@dockerfile} ."
  say "Building docker image with:".green
  say "  #{command}".green
  check_dockerfile_exists
  command = "cd #{Ufo.root} && #{command}"
  success = execute(command, use_system: true)
  unless success
    puts "ERROR: The docker image fail to build.  Are you sure the docker daemon is available?  Try running: docker version".colorize(:red)
    exit 1
  end

  took = Time.now - start_time
  say "Docker image #{full_image_name} built.  " + "Took #{pretty_time(took)}.".green
end

#check_dockerfile_exists ⇒ Object 



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# File 'lib/ufo/docker/builder.rb', line 45

def check_dockerfile_exists
  unless File.exist?("#{Ufo.root}/#{@dockerfile}")
    puts "#{@dockerfile} does not exist.  Are you sure it exists?"
    exit 1
  end
end

#docker_name_path ⇒ Object 



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# File 'lib/ufo/docker/builder.rb', line 84

def docker_name_path
  # output gets entirely wiped by tasks builder so dotn use that folder
  "#{Ufo.root}/.ufo/data/docker_image_name_#{@image_namespace}.txt"
end

#full_image_name ⇒ Object

full_image - includes the tag



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# File 'lib/ufo/docker/builder.rb', line 58

def full_image_name
  return generate_name if @options[:generate]
  return "tongueroo/hi:ufo-12345678" if ENV['TEST']

  unless File.exist?(docker_name_path)
    puts "Unable to find #{docker_name_path} which contains the last docker image name that was used as a part of `ufo docker build`.  Please run `ufo docker build` first."
    exit 1
  end
  IO.read(docker_name_path).strip
end

#generate_name ⇒ Object 



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# File 'lib/ufo/docker/builder.rb', line 80

def generate_name
  "#{image_name}:#{@image_namespace}-#{timestamp}-#{git_sha}"
end

#git_sha ⇒ Object 



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# File 'lib/ufo/docker/builder.rb', line 93

def git_sha
  return @git_sha if @git_sha
  # always call this and dont use the execute method because of the noop option
  @git_sha = `cd #{Ufo.root} && git rev-parse --short HEAD`
  @git_sha.strip!
end

#image_name ⇒ Object

full_image - does not include the tag



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# File 'lib/ufo/docker/builder.rb', line 53

def image_name
  settings["image"]
end

#pusher ⇒ Object 



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# File 'lib/ufo/docker/builder.rb', line 41

def pusher
  @pusher ||= Pusher.new(full_image_name, @options)
end

#say(msg) ⇒ Object 



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# File 'lib/ufo/docker/builder.rb', line 105

def say(msg)
  puts msg unless @options[:mute]
end

#store_full_image_name ⇒ Object

Store this in a file because this name gets reference in other tasks later and we want the image name to stay the same when the commands are run separate in different processes. So we store the state in a file. Only when a new docker build command gets run will the image name state be updated.



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# File 'lib/ufo/docker/builder.rb', line 73

def store_full_image_name
  dirname = File.dirname(docker_name_path)
  FileUtils.mkdir_p(dirname) unless File.exist?(dirname)
  full_image_name = generate_name
  IO.write(docker_name_path, full_image_name)
end

#timestamp ⇒ Object 



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# File 'lib/ufo/docker/builder.rb', line 89

def timestamp
  @timestamp ||= Time.now.strftime('%Y-%m-%dT%H-%M-%S')
end

#update_dockerfile ⇒ Object 



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# File 'lib/ufo/docker/builder.rb', line 100

def update_dockerfile
  dockerfile = Dockerfile.new(full_image_name, @options)
  dockerfile.update
end