Class: Construi::Image

Inherits:
Object
  • Object
show all
Defined in:
lib/construi/image.rb

Overview

A Docker Image

Defined Under Namespace

Classes: Error

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(image) ⇒ Image

Returns a new instance of Image.



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# File 'lib/construi/image.rb', line 11

def initialize(image)
  @image = image.refresh!
end

Class Method Details

.build(build) ⇒ Object 



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# File 'lib/construi/image.rb', line 101

def self.build(build)
  Console.progress "Building image: '#{build}'..."

  wrap Docker::Image.build_from_dir(build, rm: 0) { |s|
    Console.output build, JSON.parse(s)['stream']
  }
end

.create(image) ⇒ Object 



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# File 'lib/construi/image.rb', line 83

def self.create(image)
  Console.progress "Creating image: '#{image}'..."

  wrap Docker::Image.create('fromImage' => image) { |s|
    status = JSON.parse(s)

    id = status['id']
    progress = status['progressDetail']

    if progress.nil? || progress.empty?
      msg = ''
      msg << "#{id}: " unless id.nil?
      msg << status['status']
      Console.output image, msg
    end
  }
end

.from(config) ⇒ Object 



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# File 'lib/construi/image.rb', line 74

def self.from(config)
  image = create(config.image) unless config.image.nil?
  image = build(config.build) unless config.build.nil?

  fail Error, "Invalid image configuration: #{config}" unless image

  image.insert_locals config.files, privileged: config.privileged?
end

.wrap(image) ⇒ Object 



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# File 'lib/construi/image.rb', line 109

def self.wrap(image)
  new image
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/construi/image.rb', line 70

def ==(other)
  other.is_a?(Image) && id == other.id
end

#chmod(file, permissions, options = {}) ⇒ Object 



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# File 'lib/construi/image.rb', line 55

def chmod(file, permissions, options = {})
  chmod = "chmod -R #{permissions} #{file}"

  puts " > #{chmod}"
  run chmod, options
end

#delete ⇒ Object 



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# File 'lib/construi/image.rb', line 19

def delete
  @image.delete
end

#docker_image ⇒ Object 



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# File 'lib/construi/image.rb', line 23

def docker_image
  @image
end

#id ⇒ Object 



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# File 'lib/construi/image.rb', line 15

def id
  @image.id
end

#insert_local(file, options = {}) ⇒ Object 



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# File 'lib/construi/image.rb', line 31

def insert_local(file, options = {})
  puts "\nCopying #{file.host} to #{file.container}...".green

  img = IntermediateImage.seed(self)

  img.map do |i|
    Image.wrap i.docker_image
      .insert_local 'localPath' => file.host, 'outputPath' => file.container
  end

  img.map { |i| i.chmod file.container, file.permissions, options } if file.permissions

  img.run "ls -l #{file.container}", options

  img.image
end

#insert_locals(files, options = {}) ⇒ Object 



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# File 'lib/construi/image.rb', line 48

def insert_locals(files, options = {})
  IntermediateImage
    .seed(self)
    .reduce(files) { |a, e| a.insert_local e, options }
    .image
end

#run(cmd, options = {}) ⇒ Object 



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# File 'lib/construi/image.rb', line 66

def run(cmd, options = {})
  Container.run self, options.merge(cmd: cmd)
end

#start(options = {}) ⇒ Object 



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# File 'lib/construi/image.rb', line 62

def start(options = {})
  Container.create(self, options).tap(&:start)
end

#tagged? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/construi/image.rb', line 27

def tagged?
  @image.info['RepoTags'] != '<none>:<none>'
end