Class: MarathonDeploy::Application

Inherits:
Object
  • Object
show all
Defined in:
lib/marathon_deploy/application.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = { :force => false, :deployfile => 'deploy.yml', :remove_elements => []}) ⇒ Application

Models an application to be added converted to json and send to the marathon-api

Parameters:

  • options (Hash) (defaults to: { :force => false, :deployfile => 'deploy.yml', :remove_elements => []}) —

    hash for the application object

Options Hash (options):

  • :force (Boolean) —

    force a deployment by including an environment variable containing a random string value in the json marathon payload

  • :deployfile (String) —

    file template and path. default deploy.yml in current directory



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# File 'lib/marathon_deploy/application.rb', line 16

def initialize(options={ :force => false, :deployfile => 'deploy.yml', :remove_elements => []})

  deployfile = options[:deployfile]
  
  if (!File.exist?(deployfile))
    message = "\'#{File.expand_path(deployfile)}\' not found."
    raise Error::IOError, message, caller
  end

  extension = File.extname(deployfile)
  
  case extension
    when '.json'
      @json = YamlJson.read_json_w_macros(deployfile)
    when '.yaml','.yml'
      @json = YamlJson.yaml2json(deployfile)
    else
      message = "File extension #{extension} is not supported for deployment file #{deployfile}"
      raise Error::UnsupportedFileExtension, message, caller
  end 

  # JSON fix for marathon
  # marathon require ENV variables to be quoted
  @json['env'].each do |key, value|
    if (value.is_a? Numeric)
      @json['env'][key] = value.to_json
    end
  end
  
  missing_attributes = MarathonDefaults.missing_attributes(@json) 
  
  if(!missing_attributes.empty?)
    message = "#{deployfile} is missing required marathon API attributes: #{missing_attributes.join(',')}"
    raise Error::MissingMarathonAttributesError, message, caller
  end
  
  missing_envs = MarathonDefaults.missing_envs(@json)
  if(!missing_envs.empty?)
    message = "#{deployfile} is missing required environment variables: #{missing_envs.join(',')}"
    raise Error::MissingMarathonAttributesError, message, caller
  end
   
  @deployfile = deployfile                
  @json =  Utils.deep_symbolize(@json)  
    
  add_identifier if (options[:force])
  remove_elements(options[:remove_elements])
    
  inject_envs = ENV.select { |k,v| /^#{MarathonDeploy::MarathonDefaults::ENVIRONMENT_VARIABLE_PREFIX}/.match(k)  }
  cleaned_envs = Hash[inject_envs.map { |k,v| [k.gsub(/^#{MarathonDeploy::MarathonDefaults::ENVIRONMENT_VARIABLE_PREFIX}/,''), v ] }]   
  self.add_envs cleaned_envs.to_h unless cleaned_envs.empty?
end

Instance Attribute Details

#id ⇒ Object (readonly)

Returns the value of attribute id.



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# File 'lib/marathon_deploy/application.rb', line 10

def id
  @id
end

#json ⇒ Object (readonly)

Returns the value of attribute json.



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# File 'lib/marathon_deploy/application.rb', line 10

def json
  @json
end

Instance Method Details

#add_envs(envs) ⇒ Object 



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# File 'lib/marathon_deploy/application.rb', line 104

def add_envs(envs)
  if (envs.is_a?(Hash))
    envs.each do |key,value|
      if (value.is_a? Numeric)
        @json[:env][key] = value.to_json
      else
        @json[:env][key] = value
      end
    end 
  else
    raise Error::BadFormatError, "argument must be a hash", caller
  end
end

#add_identifier ⇒ Object 



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# File 'lib/marathon_deploy/application.rb', line 77

def add_identifier
  random = Utils.random
  # Time.now.to_i
  @json[:env]['UNIQUE_ID'] = "#{id}_#{random}"
end

#env ⇒ JSON

Returns list of ENV variables for this application.

Returns:

  • (JSON) —

    list of ENV variables for this application



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# File 'lib/marathon_deploy/application.rb', line 96

def env
  @json[:env]
end

#health_checks ⇒ Object 



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# File 'lib/marathon_deploy/application.rb', line 73

def health_checks
  @json[:healthChecks]
end

#instances ⇒ Object 



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# File 'lib/marathon_deploy/application.rb', line 118

def instances
  @json[:instances]  
end

#overlay_preproduction_settings ⇒ Object 



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# File 'lib/marathon_deploy/application.rb', line 69

def overlay_preproduction_settings
  @json = MarathonDefaults.overlay_preproduction_settings(@json)
end

#remove_elements(remove_array) ⇒ Object 



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# File 'lib/marathon_deploy/application.rb', line 83

def remove_elements(remove_array)
  if (remove_array.is_a?(Array))
    remove_array.each do |element|
      @json.delete(element)
    end
  end
end

#to_s ⇒ Object 



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# File 'lib/marathon_deploy/application.rb', line 91

def to_s
  JSON.pretty_generate(@json)
end