Module: IspUnity

Defined in:
lib/isp_unity.rb,
lib/isp_unity/version.rb,
lib/isp_unity/routing_table.rb

Defined Under Namespace

Classes: IspUnityException

Constant Summary collapse

PATH = 
YAML.load_file( config_file )[ENV['GEM_ENV']
ConfigFilePath = 
File.join(PATH['config_file_path'])
RoutingTablePath = 
PATH['rt_table_path'].to_s
VERSION = 
"0.0.5"

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.isp_config_list ⇒ Object (readonly)

Returns the value of attribute isp_config_list.



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# File 'lib/isp_unity/routing_table.rb', line 10

def isp_config_list
  @isp_config_list
end

Class Method Details

.config ⇒ Object 



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# File 'lib/isp_unity/routing_table.rb', line 12

def config
  # If file is exists then it reads that otherwise log an error 
  if File.exist?(ConfigFilePath)
    begin
      configurations = JSON.parse(File.read(ConfigFilePath))   
      IspUnityLog.info(I18n.t('file.read.success'))
    rescue Exception => e
      IspUnityLog.debug("#{e}")
      IspUnityLog.error(I18n.t('file.read.error'))
      raise IspUnityException.new(I18n.t('file.read.error'))
    end

    @isp_config_list = [] 
    isp_list = configurations['isp']
    $ip_cluster = configurations['public_dns']
    $skip_sticky_session = configurations['skip_sticky_session']
    $priority_for_sticky = configurations['priority_for_sticky'].split(',') if configurations['priority_for_sticky']

    if isp_list 
      isp_list.each do|data|
        if data['enabled'] == 'true'
          ip_addr = SystemCall.get_ip(data['interface'].to_s)
          if ip_addr
            data['ip_address'] = SystemCall.get_ip(data['interface'])
            @isp_config_list.push(Isp.new(data)) 
          else
            puts I18n.t('no_ip_addr') + data['name']
            IspUnityLog.error(I18n.t('no_ip_addr') + data['name'] )
          end
        end
      end
      IspUnityLog.info('Isp Object succesfully created!')
    else
      raise IspUnityException.new(I18n.t('file.enter_isp'))
      IspUnityLog.error(I18n.t('file.read.no_isp_found'))
    end

    routing_table = File.read(RoutingTablePath)
    IspUnityLog.info(I18n.t('routing_table.read.success'))
    begin
      @isp_config_list.each do|isp_list|
        unless routing_table.include?(isp_list.name)
          File.open(RoutingTablePath, 'a') {|f| f.write("#{rand(100)}  #{isp_list.name} \n")}
        end
        IspUnityLog.info(I18n.t('isp.created'))
      end
    rescue Exception => e
      IspUnityLog.debug("#{e}")
      IspUnityLog.error(I18n.t('routing_table.read.error'))
      raise IspUnityException.new(I18n.t('routing_table.read.error'))
    end
  else
    @isp_config_list = []
    puts "Please make ensure that configuration file has copied on /etc dir"
    IspUnityLog.error('Please make ensure that configuration file has copied on /etc dir')
  end
end

.monitor ⇒ Object 



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# File 'lib/isp_unity.rb', line 64

def monitor
  IspUnity.config
  online_isps = []
  IspUnity.isp_config_list.each do |isp|
    online_isps << isp  if LoadBalance.is_alive(isp) 
  end

  #Failover case
  unless  online_isps == isp_config_list

    #LOAD BALANCE
    LoadBalance.build_commands(IspUnity.isp_config_list)
    IspUnityLog.info(I18n.t('load_balance.build_commands'))
    SystemCall.execute(LoadBalance.commands)
    IspUnityLog.info(I18n.t('system_call.execute.load_balance.success'))

    #Flush route
    SystemCall.execute('/sbin/ip route flush cache')

    #Change sticky session 
    offline_isps = isp_lists - online_isps
    StickySession.change_rule(offline_isps, online_isps)
  
  end
end

.setup ⇒ Object 



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# File 'lib/isp_unity.rb', line 32

def setup
  IspUnity.config
  isp_lists = IspUnity.isp_config_list
  IspUnityLog.info(I18n.t('file.write'))
  Route.build_commands(isp_lists)
  route_command = Route.commands
  IspUnityLog.info(I18n.t('route.build_commands'))
  IspUnityLog.debug("Route Command: #{route_command}")
  if SystemCall.execute(route_command)
    IspUnityLog.info(I18n.t('system_call.execute.route.success'))

    #RULE COMMAND
    Rule.build_commands(isp_lists)
    rule_command = Rule.commands
    IspUnityLog.info(I18n.t('rule.build_commands'))
    IspUnityLog.debug("Rule Command: #{rule_command}")
    SystemCall.execute(rule_command)
    IspUnityLog.info(I18n.t('system_call.execute.rule.success'))

    #LOAD BALANCE
    LoadBalance.build_commands(isp_lists)
    load_balance_command = LoadBalance.commands
    IspUnityLog.info(I18n.t('load_balance.build_commands'))
    IspUnityLog.debug("Load Balance Command: #{load_balance_command}")
    SystemCall.execute(load_balance_command)
    IspUnityLog.info(I18n.t('system_call.execute.load_balance.success'))

    #Sticky Session
    StickySession.execute(isp_lists) if $skip_sticky_session
  end
end