Class: CloudfoundryBlueGreenDeploy::BlueGreenDeployConfig

Inherits:
Object
  • Object
show all
Defined in:
lib/cloudfoundry_blue_green_deploy/blue_green_deploy_config.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(cf_manifest, web_app_name, worker_app_names, with_shutter = nil) ⇒ BlueGreenDeployConfig

Returns a new instance of BlueGreenDeployConfig.



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# File 'lib/cloudfoundry_blue_green_deploy/blue_green_deploy_config.rb', line 10

def initialize(cf_manifest, web_app_name, worker_app_names, with_shutter = nil)
  manifest = cf_manifest['applications']

  self.class.valid_name_check(web_app_name, worker_app_names, manifest)

  item = manifest.find { |item| self.class.strip_color(item['name']) == web_app_name }
  if item.nil?
    raise InvalidManifestError.new("Could not find \"#{web_app_name}-green\" nor \"#{web_app_name}-blue\" in the Cloud Foundry manifest:\n" +
                                   "#{cf_manifest.inspect}")
  end

  host = item['host']
  if host.nil?
    raise InvalidManifestError.new(
      "Could not find the \"host\" property associated with the \"#{item['name']}\" application in the Cloud Foundry manifest:\n" +
      "#{cf_manifest.inspect}")
  end

  @domain = item['domain']

  if @domain.nil?
    raise InvalidManifestError.new(
      "Could not find the \"domain\" property associated with the \"#{item['name']}\" application in the Cloud Foundry manifest:\n" +
      "#{cf_manifest.inspect}")
  end

  @web_app_name = web_app_name
  @hot_url = host.slice(0, host.rindex('-'))
  @worker_app_names = worker_app_names
  @with_shutter = with_shutter
  @target_color = nil
end

Instance Attribute Details

#domain ⇒ Object (readonly)

Returns the value of attribute domain.



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# File 'lib/cloudfoundry_blue_green_deploy/blue_green_deploy_config.rb', line 7

def domain
  @domain
end

#hot_url ⇒ Object (readonly)

Returns the value of attribute hot_url.



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# File 'lib/cloudfoundry_blue_green_deploy/blue_green_deploy_config.rb', line 7

def hot_url
  @hot_url
end

#target_color ⇒ Object

Returns the value of attribute target_color.



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# File 'lib/cloudfoundry_blue_green_deploy/blue_green_deploy_config.rb', line 8

def target_color
  @target_color
end

#with_shutter ⇒ Object (readonly)

Returns the value of attribute with_shutter.



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# File 'lib/cloudfoundry_blue_green_deploy/blue_green_deploy_config.rb', line 7

def with_shutter
  @with_shutter
end

#worker_app_names ⇒ Object (readonly)

Returns the value of attribute worker_app_names.



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# File 'lib/cloudfoundry_blue_green_deploy/blue_green_deploy_config.rb', line 7

def worker_app_names
  @worker_app_names
end

Class Method Details

.all_app_names(web_app_name, worker_app_names) ⇒ Object 



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# File 'lib/cloudfoundry_blue_green_deploy/blue_green_deploy_config.rb', line 95

def self.all_app_names(web_app_name, worker_app_names)
  all_app_names = []
  all_app_names <<  colorize_name(web_app_name, 'blue')
  all_app_names <<  colorize_name(web_app_name, 'green')

  worker_app_names.each do |app|
    all_app_names << colorize_name(app, 'green')
    all_app_names << colorize_name(app, 'blue')
  end

  all_app_names
end

.colorize_name(app_name, color) ⇒ Object 



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# File 'lib/cloudfoundry_blue_green_deploy/blue_green_deploy_config.rb', line 91

def self.colorize_name(app_name, color)
  "#{app_name}-#{color}"
end

.get_color_stem(app_name) ⇒ Object 



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# File 'lib/cloudfoundry_blue_green_deploy/blue_green_deploy_config.rb', line 83

def self.get_color_stem(app_name)
  app_name.slice((app_name.rindex('-') + 1)..(app_name.length))
end

.strip_color(app_name_with_color) ⇒ Object 



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# File 'lib/cloudfoundry_blue_green_deploy/blue_green_deploy_config.rb', line 73

def self.strip_color(app_name_with_color)
  app_name_with_color.slice((0..app_name_with_color.rindex('-') - 1))
end

.toggle_app_color(target_app_name) ⇒ Object 



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# File 'lib/cloudfoundry_blue_green_deploy/blue_green_deploy_config.rb', line 77

def self.toggle_app_color(target_app_name)
  new_color = toggle_color(get_color_stem(target_app_name))
  new_app = target_app_name.slice(0..(target_app_name.rindex('-') - 1))
  new_app = "#{new_app}-#{new_color}"
end

.toggle_color(target_color) ⇒ Object 



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# File 'lib/cloudfoundry_blue_green_deploy/blue_green_deploy_config.rb', line 87

def self.toggle_color(target_color)
  target_color == 'green' ? 'blue' : 'green'
end

.valid_name_check(web_app_name, worker_app_names, manifest) ⇒ Object 



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# File 'lib/cloudfoundry_blue_green_deploy/blue_green_deploy_config.rb', line 62

def self.valid_name_check(web_app_name, worker_app_names, manifest)
  all_apps = all_app_names(web_app_name, worker_app_names)
  all_apps.each do |app_name|
    if manifest.none? { |record| record['name'] == app_name }
      raise InvalidManifestError.new("Could not find \"#{app_name}\" in the Cloud Foundry manifest:\n" +
                                     "#{manifest}")

    end
  end
end

Instance Method Details

#is_in_target?(app) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cloudfoundry_blue_green_deploy/blue_green_deploy_config.rb', line 51

def is_in_target?(app)
  self.class.get_color_stem(app) == @target_color
end

#shutter_app_name ⇒ Object 



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# File 'lib/cloudfoundry_blue_green_deploy/blue_green_deploy_config.rb', line 43

def shutter_app_name
  "#{@web_app_name}-shutter"
end

#target_web_app_name ⇒ Object 



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# File 'lib/cloudfoundry_blue_green_deploy/blue_green_deploy_config.rb', line 47

def target_web_app_name
  "#{@web_app_name}-#{@target_color}"
end

#target_worker_app_names ⇒ Object 



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# File 'lib/cloudfoundry_blue_green_deploy/blue_green_deploy_config.rb', line 55

def target_worker_app_names
  @worker_app_names.map do |app|
    "#{app}-#{@target_color}"
  end
end