Class: Ridley::SSH::Worker Private

Inherits:
Object
  • Object
show all
Includes:
Celluloid, Celluloid::Logger
Defined in:
lib/ridley/ssh/worker.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Author:

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Worker

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of Worker

Parameters:

  • options (Hash) (defaults to: {})

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# File 'lib/ridley/ssh/worker.rb', line 15

def initialize(options = {})
  @options = options.deep_symbolize_keys
  @sudo    = @options[:sudo]
  @user    = @options[:user]

  @options[:paranoid] = false
end

Instance Attribute Details

#optionsHashie::Mash (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Hashie::Mash)

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# File 'lib/ridley/ssh/worker.rb', line 12

def options
  @options
end

#sudoObject (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.


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# File 'lib/ridley/ssh/worker.rb', line 9

def sudo
  @sudo
end

#userObject (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.


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# File 'lib/ridley/ssh/worker.rb', line 10

def user
  @user
end

Instance Method Details

#run(host, command) ⇒ Array

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Parameters:

  • host (String)
  • command (String)

Returns:

  • (Array)

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# File 'lib/ridley/ssh/worker.rb', line 27

def run(host, command)
  response = Response.new(host)
  debug "Running SSH command: '#{command}' on: '#{host}' as: '#{user}'"

  Net::SSH.start(host, user, options.slice(*Net::SSH::VALID_OPTIONS)) do |ssh|
    ssh.open_channel do |channel|
      if self.sudo
        channel.request_pty
      end

      channel.exec(command) do |ch, success|
        unless success
          raise "FAILURE: could not execute command"
        end

        channel.on_data do |ch, data|
          response.stdout += data
          info "NODE[#{host}] #{data}" if data.present? and data != "\r\n"
        end

        channel.on_extended_data do |ch, type, data|
          response.stderr += data
          info "NODE[#{host}] #{data}" if data.present? and data != "\r\n"
        end

        channel.on_request("exit-status") do |ch, data|
          response.exit_code = data.read_long
        end

        channel.on_request("exit-signal") do |ch, data|
          response.exit_signal = data.read_string
        end
      end
    end

    ssh.loop
  end

  case response.exit_code
  when 0
    debug "Successfully ran SSH command on: '#{host}' as: '#{user}'"
    [ :ok, response ]
  else
    error "Successfully ran SSH command on: '#{host}' as: '#{user}', but it failed"
    error response.stdout
    [ :error, response ]
  end
rescue => e
  error "Failed to run SSH command on: '#{host}' as: '#{user}'"
  error "#{e.class}: #{e.message}"
  response.exit_code = -1
  response.stderr = e.message
  [ :error, response ]
end