Module: Kapten::DockerApi

Defined in:
lib/kapten/docker.rb

Class Method Summary collapse

Class Method Details

.destroy(name) ⇒ Object

Fully remove container



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# File 'lib/kapten/docker.rb', line 129

def self.destroy(name)

  container = Kapten::DockerApi::get_container(name)

  if container

    container.stop
    container.delete(:force => true)
    return true

  end

  return false

end

.get_container(name) ⇒ Object

Get Docker container by Kapten name



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# File 'lib/kapten/docker.rb', line 26

def self.get_container(name)

  begin

    container = Docker::Container.get('kapten_' + name)
    return container

  rescue

    return false

  end

end

.get_image(image) ⇒ Object

Get Docker image by name



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# File 'lib/kapten/docker.rb', line 43

def self.get_image(image)

  begin

    image = Docker::Image.get( image )
    return image

  rescue

    return false

  end

end

.has_docker? ⇒ Boolean

Check if Docker is installed

Returns:

  • (Boolean) 


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# File 'lib/kapten/docker.rb', line 7

def self.has_docker?

  begin

    version = Docker.version
    return true if version

  rescue

    return false

  end

  return false

end

.start(name, image) ⇒ Object

Start Docker container, attaches STDIN and STDOUT



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# File 'lib/kapten/docker.rb', line 60

def self.start(name, image)

  container = Kapten::DockerApi::get_container(name)

  if not container

    # Pull image if not installed
    docker_image = Kapten::DockerApi::get_image( image )

    unless docker_image

      puts "First time running, installing environment (this might take a few minutes)...".green
      docker_image = Docker::Image.create( 'fromImage' => image )

    end


    puts "Creating environment...".green

    container = Docker::Container.create(
      'Image' => image,
      'name' => 'kapten_' + name,
      'Hostname' => name,
      'Cmd' => ['/bin/bash'],
      "OpenStdin" => true,
      "StdinOnce" => true,
      "Tty"       => true,
      "WorkingDir" => "/usr/src/" + name,
      "Hostconfig" => {
        "Binds" => [Dir.pwd + ":/usr/src/" + name]
      }
    )

  end

  container.start
  puts "---------------------------------".green
  puts 'Kapten: You\'re now inside the development environment, go wild! (use "exit" to get out of here)'.green


  # Connect to container shell with both STDIN and STDOUT
  require "io/console"
  STDIN.raw do |stdin|
    container.exec(["bash"], stdin: stdin, tty: true) do |chunk|
      print chunk
    end
  end

end

.stop(name) ⇒ Object

Stop running container



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# File 'lib/kapten/docker.rb', line 112

def self.stop(name)

  container = Kapten::DockerApi::get_container(name)

  if container

    container.stop
    return true

  end

  return false

end