Class: Spurious::Server::State::Init

Inherits:
Base
  • Object
show all
Defined in:
lib/spurious/server/state/init.rb

Instance Attribute Summary collapse

Attributes inherited from Base

#config, #connection

Instance Method Summary collapse

Methods inherited from Base

#initialize

Constructor Details

This class inherits a constructor from Spurious::Server::State::Base

Instance Attribute Details

#completed_containers ⇒ Object

Returns the value of attribute completed_containers.



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# File 'lib/spurious/server/state/init.rb', line 11

def completed_containers
  @completed_containers
end

Instance Method Details

#execute! ⇒ Object 



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# File 'lib/spurious/server/state/init.rb', line 13

def execute!
  this = self
  completed_containers = 0

  app_config.each do |name, meta|
    image_meta = { 'fromImage' => meta[:image]}
    image_meta['Env'] = meta[:env] unless meta[:env].nil?

    container_operation = Proc.new do

      begin
        this.send "Creating container with name: #{name}"
        Docker::Container.create("name" => name, "Image" => meta[:image])
      rescue Exception => e
        case e.message
        when /409 Conflict/
          this.error "Container with name: #{name} already exists"
        else
          this.error "Error creating container: #{e.message}"
        end
      end

    end

    container_callback = Proc.new do
      completed_containers = completed_containers + 1
      this.send("#{config.app.length} containers successfully initialized", true) if completed_containers == app_config.length
    end

    image_operation = Proc.new do
      begin
        this.send "Pulling #{name} from the public repo..."
        Docker::Image.create(image_meta)
      rescue Exception => e
        this.error "Error pulling down image: #{e.message}"
      end

    end

    image_callback = Proc.new do
      EM.add_timer(1) do
        EM.defer(container_operation, container_callback)
      end
    end

    EM.add_timer(1) do
      EM.defer(image_operation, image_callback)
    end
  end

end