Class: Construi::Container

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

Defined Under Namespace

Classes: RunError

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(container, options = {}) ⇒ Container

Returns a new instance of Container.



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# File 'lib/construi/container.rb', line 9

def initialize(container, options = {})
  @container = container
  @name = options[:name] || @container.id
  @log_lifecycle = options[:log_lifecycle] || false
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/construi/container.rb', line 7

def name
  @name
end

Class Method Details

.create(image, options = {}) ⇒ Object 



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# File 'lib/construi/container.rb', line 68

def self.create(image, options = {})
  env = options[:env] || []
  privileged = options[:privileged] || false
  links = options[:links] || []
  volumes = options[:volumes] || []
  volumes_from = options[:volumes_from] || []

  host_config = {
    'Binds' => ["#{Dir.pwd}:/var/workspace"].concat(volumes),
    'Privileged' => privileged,
    'Links' => links,
    'VolumesFrom' => volumes_from
  }

  create_options = {
    'Image' => image.id,
    'Env' => env,
    'Tty' => false,
    'WorkingDir' => '/var/workspace',
    'HostConfig' => host_config
  }

  create_options['Cmd'] = options[:cmd].split if options.key?(:cmd)

  wrap Docker::Container.create(create_options), options
end

.run(image, options = {}) ⇒ Object 



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# File 'lib/construi/container.rb', line 106

def self.run(image, options = {})
  use image, options, &:run
end

.use(image, options = {}) ⇒ Object 



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# File 'lib/construi/container.rb', line 99

def self.use(image, options = {})
  container = create image, options
  yield container
ensure
  container.delete unless container.nil?
end

.wrap(container, options = {}) ⇒ Object 



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# File 'lib/construi/container.rb', line 95

def self.wrap(container, options = {})
  new container, options
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/construi/container.rb', line 64

def ==(other)
  other.is_a? Container and id == other.id
end

#attach_stdout ⇒ Object 



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# File 'lib/construi/container.rb', line 37

def attach_stdout
  Thread.new do
    @container.attach(:stream => true, :logs => true) { |_, c| Console.output name, c }
  end
end

#commit ⇒ Object 



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# File 'lib/construi/container.rb', line 51

def commit
  Image.wrap(@container.commit)
end

#delete ⇒ Object 



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# File 'lib/construi/container.rb', line 30

def delete
  stop
  @container.kill
  @container.delete force: true, v: true
  log_lifecycle "Deleted container: '#{name}'"
end

#id ⇒ Object 



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

def id
  @container.id
end

#log_lifecycle(msg) ⇒ Object 



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# File 'lib/construi/container.rb', line 47

def log_lifecycle(msg)
  Console.progress msg if log_lifecycle?
end

#log_lifecycle? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/construi/container.rb', line 43

def log_lifecycle?
  @log_lifecycle
end

#run ⇒ Object

Raises:



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

def run
  start
  status_code = @container.wait['StatusCode']

  raise RunError, "Cmd returned status code: #{status_code}" unless status_code == 0

  commit
end

#start ⇒ Object 



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

def start
  log_lifecycle "Starting container: '#{name}'..."
  @container.start!
  attach_stdout
end

#stop ⇒ Object 



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# File 'lib/construi/container.rb', line 25

def stop
  log_lifecycle "Stopping container: '#{name}'..."
  @container.stop
end