Class: Courgette::Executor

Inherits:
Object
  • Object
show all
Defined in:
lib/courgette/executor.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(client, executors, logger) ⇒ Executor

Returns a new instance of Executor.



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# File 'lib/courgette/executor.rb', line 5

def initialize(client, executors, logger)
  @client = client
  @executors = executors
  @logger = logger
end

Instance Attribute Details

#client ⇒ Object (readonly)

Returns the value of attribute client.



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# File 'lib/courgette/executor.rb', line 3

def client
  @client
end

#logger ⇒ Object (readonly)

Returns the value of attribute logger.



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# File 'lib/courgette/executor.rb', line 3

def logger
  @logger
end

Instance Method Details

#fetch_and_update(device) ⇒ Object 



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# File 'lib/courgette/executor.rb', line 21

def fetch_and_update(device)
  begin
    status = client.update_device(device.ip, device.fetch)
    logger.info "#{device} #{status}"
  rescue Timeout::Error
    logger.info "#{device} is unreachable (timeout)"
  rescue Net::SSH::Disconnect
    logger.info "#{device} is unreachable (disconnect)"
  rescue Net::SSH::AuthenticationFailed
    logger.info "#{device} credentials are incorrect"
  rescue Errno::ECONNREFUSED
    logger.info "#{device} is unreachable (connection refused)"
  rescue Net::SSH::Exception => e
    logger.info "#{device} ssh error (#{e.message})"
  rescue => e
    logger.info "#{device} fatal error (#{e.class} - #{e.message})"
  end
end

#launch!(filter) ⇒ Object 



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# File 'lib/courgette/executor.rb', line 11

def launch!(filter)
  Parallel.each(client.devices.select { |device| filter.call(device) }, in_threads: @executors) do |device|
    begin
    Timeout::timeout(240) { fetch_and_update(device) }
    rescue
    logger.info "#{device} execution too long (timeout)"
    end
  end
end