Class: Ciborg::Sobo

Inherits:
Object
  • Object
show all
Defined in:
lib/ciborg/sobo.rb

Defined Under Namespace

Classes: CommandFailed

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(ip, key, user = 'ubuntu') ⇒ Sobo

Returns a new instance of Sobo.



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# File 'lib/ciborg/sobo.rb', line 10

def initialize(ip, key, user='ubuntu')
  @ip = ip
  @key = key
  @user = user
end

Instance Attribute Details

#ip ⇒ Object (readonly)

Returns the value of attribute ip.



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# File 'lib/ciborg/sobo.rb', line 7

def ip
  @ip
end

#key ⇒ Object (readonly)

Returns the value of attribute key.



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# File 'lib/ciborg/sobo.rb', line 7

def key
  @key
end

#timeout ⇒ Object 



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# File 'lib/ciborg/sobo.rb', line 16

def timeout
  @timeout || 10000
end

#user ⇒ Object (readonly)

Returns the value of attribute user.



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# File 'lib/ciborg/sobo.rb', line 7

def user
  @user
end

Instance Method Details

#backtick(command) ⇒ Object 



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# File 'lib/ciborg/sobo.rb', line 29

def backtick(command)
  ssh_popen4!(command)[0]
end

#ssh_popen4!(command, streaming_output = false) ⇒ Object 



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# File 'lib/ciborg/sobo.rb', line 33

def ssh_popen4!(command, streaming_output = false)
  ssh = Net::SSH.start(ip, user, :keys => [key], :timeout => timeout, paranoid: false)
  stdout_data = ""
  stderr_data = ""
  exit_code = nil
  exit_signal = nil

  ssh.open_channel do |channel|
    channel.exec("/bin/bash -lc #{Shellwords.escape(command)}") do |ch, success|
      unless success
        raise "FAILED: couldn't execute command (ssh.channel.exec)"
      end

      channel.on_data do |ch,data|
        if streaming_output
          STDOUT << data
          STDOUT.flush
        end
        stdout_data += data
      end

      channel.on_extended_data do |ch,type,data|
        if streaming_output
          STDERR << data
          STDERR.flush
        end
        stderr_data += data
      end

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

      channel.on_request("exit-signal") do |ch, data|
        exit_signal = data.read_long
      end
    end
  end
  ssh.loop
  [stdout_data, stderr_data, exit_code, exit_signal]
end

#system(command) ⇒ Object 



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# File 'lib/ciborg/sobo.rb', line 20

def system(command)
  ssh_popen4!(command, true)[2]
end

#system!(command) ⇒ Object

Raises:



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# File 'lib/ciborg/sobo.rb', line 24

def system!(command)
  result = ssh_popen4!(command, true)
  raise(CommandFailed, "Failed: #{command}\n#{result[0]}\n\n#{result[1]}") unless result[2] == 0
end

#upload(from, to, opts = "--exclude .git") ⇒ Object 



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# File 'lib/ciborg/sobo.rb', line 75

def upload(from, to, opts = "--exclude .git")
  Kernel.system(%Q{rsync --rsh="ssh -o 'StrictHostKeyChecking no' -i #{key}" --archive --compress --delete #{from} #{user}@#{ip}:#{to} #{opts}})
end