Module: AsCombinedMetrics::Cli::Config

Defined in:
lib/as-combined-metrics/config.rb

Instance Method Summary collapse

Instance Method Details

#load_config ⇒ Object

Raises:



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# File 'lib/as-combined-metrics/config.rb', line 6

def load_config
  logger.progname = "#{Module.nesting.first.to_s} #{__method__}"
  raise ConfigError, "Config file not found" if !File.exists?(options[:config_file])

  sha1_config = Digest::SHA1.hexdigest(File.read(options[:config_file]))

  if File.exists?("#{options[:config_file]}.bkp")
    sha1_config_bkp = Digest::SHA1.hexdigest(File.read("#{options[:config_file]}.bkp")) 
  else
    sha1_config_bkp = nil
  end

  if sha1_config != sha1_config_bkp
    logger.info { set_color  "Backing up original config file to #{options[:config_file]}.bkp", :white }
    FileUtils.cp(options[:config_file], "#{options[:config_file]}.bkp")  
  else
    logger.info {set_color "Skipping backup because the backup is identical to the config file", :white }
  end

  begin
    logger.info { set_color "Loading config file (#{options[:config_file]})", :white }
    @config = YAML.load_file(options[:config_file])

    # Symbolize keys recursively for config
    @config.deep_symbolize_keys!
    logger.debug "config: #{@config}"
    
    if options[:scalein_only] && !@config.has_key?(:ScaleIn)
      raise ConfigError, "Could not find the proper mode for ScaleIn in the config file"
    elsif options[:scaleout_only] && !@config.has_key?(:ScaleOut)
      raise ConfigError, "Could not find the proper mode for ScaleOut in the config file"
    elsif !@config.has_key?(:ScaleIn) || !@config.has_key?(:ScaleOut)
      raise ConfigError, "Could not find the proper mode for ScaleIn or ScaleOut in the config file"
    end

  rescue Exception, ConfigError => e
    logger.fatal {set_color "Error reading config file: #{e}", :red}
    puts e.backtrace
    exit 1
  end
  process
end

#process ⇒ Object 



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# File 'lib/as-combined-metrics/config.rb', line 49

def process
  logger.progname = "#{Module.nesting.first.to_s} #{__method__}"
  if @config.has_key?(:autoscale_group_name)
    @config[:autoscale_group_name].each {|g| validate_as_group(g)}
  elsif @config[:cloudformation][:enabled]
    verify_stack_name

    @config[:cloudformation][:logical_resource_ids].each do | resource |
      logger.debug "logical_resource_id: #{resource}"
      describe_stack(resource)
    end
  end
end