Module: OpsWorks

Defined in:
lib/opsworks.rb

Instance Method Summary collapse

Instance Method Details

#create_and_launch_stack(stack_description) ⇒ Object 



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# File 'lib/opsworks.rb', line 27

def create_and_launch_stack(stack_description)
  stack_id = create_stack(stack_description)
  launch_stack(stack_id)
  deploy_apps(stack_id)
  stack_id
end

#create_and_launch_stack_in_order(stack_description, layers_by_order) ⇒ Object 



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# File 'lib/opsworks.rb', line 34

def create_and_launch_stack_in_order(stack_description, layers_by_order)
  stack_id = create_stack(stack_description)
  launch_stack_in_order(stack_id, layers_by_order)
  deploy_apps(stack_id)
  stack_id
end

#create_stack(stack_description) ⇒ Object 



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# File 'lib/opsworks.rb', line 41

def create_stack(stack_description)
  opsworks_client = AWS::OpsWorks::Client::V20130218.new

  response = opsworks_client.create_stack(stack_description.stack_description)
  stack_id = response[:stack_id]

  stack_description.layer_descriptions.each do |layer_description|
    layer_description[:layer][:stack_id] = stack_id

    response = opsworks_client.create_layer(layer_description[:layer])
    layer_id = response[:layer_id]

    layer_description[:instances].each do |instance_description|
      instance_description[:stack_id] = stack_id
      instance_description[:layer_ids] = [layer_id]
      response = opsworks_client.create_instance(instance_description)
    end
  end

  stack_description.app_descriptions.each do |app_description|
    app_description[:stack_id] = stack_id
    response = opsworks_client.create_app(app_description)
  end

  stack_id
end

#deploy_apps(stack_id) ⇒ Object 



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# File 'lib/opsworks.rb', line 106

def deploy_apps(stack_id)
  deployment_ids = []
  opsworks_client = AWS::OpsWorks::Client::V20130218.new
  response = opsworks_client.describe_apps(:stack_id => stack_id)
  response[:apps].each do |app|

    puts "DEPLOYING THE APP: #{app}"
    response = opsworks_client.create_deployment(:stack_id => stack_id,
                                                 :app_id => app[:app_id],
                                                 :command => {
                                                   :name => 'deploy',
                                                   :args => deployment_args_factory(app)
                                                 })
    deployment_ids << response[:deployment_id]
  end

  max_attempts = 250
  num_attempts = 0

  deployments_complete = false
  until deployments_complete
    response = opsworks_client.describe_deployments(:deployment_ids => deployment_ids)
    deployments_complete = response[:deployments].inject(true) do |status, deployment|
      puts "Deployment status: #{deployment[:status]}"

      if deployment[:status] == 'failed'
        raise 'deployment failed'
      end

      status and (deployment[:status] == 'successful')
    end
    num_attempts += 1
    if num_attempts >= max_attempts
      raise 'stuck waiting on configure command max attempts'
    end
    sleep 10
  end
  deployment_ids
end

#discover_private_ips(stack_id, layer_name) ⇒ Object 



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# File 'lib/opsworks.rb', line 146

def discover_private_ips(stack_id, layer_name)
  opsworks_client = AWS::OpsWorks::Client::V20130218.new
  response = opsworks_client.describe_layers( :stack_id => stack_id)
  layer = response[:layers].find { |layer| layer[:name] == layer_name }
  raise "layer #{layer_name} not found in stack: #{stack_id}" if layer.nil?

  response = opsworks_client.describe_instances( :layer_id => layer[:layer_id] )
  response[:instances].collect { |instance| instance[:private_ip] }
end

#discover_public_ips(stack_id, layer_name) ⇒ Object 



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# File 'lib/opsworks.rb', line 156

def discover_public_ips(stack_id, layer_name)
  opsworks_client = AWS::OpsWorks::Client::V20130218.new
  response = opsworks_client.describe_layers( :stack_id => stack_id)
  layer = response[:layers].find { |layer| layer[:name] == layer_name }
  raise "layer #{layer_name} not found in stack: #{stack_id}" if layer.nil?

  response = opsworks_client.describe_instances( :layer_id => layer[:layer_id] )
  response[:instances].collect { |instance| instance[:public_ip] }
end

#launch_stack(stack_id) ⇒ Object 



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# File 'lib/opsworks.rb', line 68

def launch_stack(stack_id)
  opsworks_client = AWS::OpsWorks::Client::V20130218.new

  opsworks_client.start_stack(:stack_id => stack_id)

  wait_on_setup(stack_id)

  wait_on_all_configures(stack_id)
end

#launch_stack_in_order(stack_id, layers_by_order) ⇒ Object 



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# File 'lib/opsworks.rb', line 79

def launch_stack_in_order(stack_id, layers_by_order)
  opsworks_client = AWS::OpsWorks::Client::V20130218.new

  layers_by_order.each do |layer_names|
    layer_names.each do |layer_name|

      response = opsworks_client.describe_layers( :stack_id => stack_id)
      layer = response[:layers].find { |layer| layer[:shortname] == layer_name }
      raise "layer #{layer_name} not found in stack: #{stack_id}" if layer.nil?

      response = opsworks_client.describe_instances( :layer_id => layer[:layer_id])
      response[:instances].each do |instance|
        opsworks_client.start_instance( :instance_id => instance[:instance_id])
      end
    end

    layer_names.each do |layer_name|
      response = opsworks_client.describe_layers( :stack_id => stack_id)
      layer = response[:layers].find { |layer| layer[:shortname] == layer_name }
      raise "layer #{layer_name} not found in stack: #{stack_id}" if layer.nil?

      wait_on_layer_setup(layer[:layer_id])
      wait_on_layer_configures(layer[:layer_id])
    end
  end
end