class ConnectableServer

Attributes

debug[R]

Public Class Methods

new(hostname, username, options) click to toggle source
# File lib/rbvppc/connectable_server.rb, line 23
def initialize(hostname, username, options)
    options[:protocol] = :ssh if !options.has_key? :protocol
    options[:port] = 22 if (options[:protocol] == :ssh) && (!options.has_key? :port)
    @hostname, @username, @options = hostname, username, options
    @session = nil
    @debug ||= true
end

Public Instance Methods

connect() click to toggle source
# File lib/rbvppc/connectable_server.rb, line 41
def connect
    if (@options[:key] && !@options[:password]) then
        @session = Net::SSH.start(@hostname, @username, :key => @options[:key], :port => @options[:port])
    elsif (@options[:key] && @options[:password])
        @session = Net::SSH.start(@hostname, @username, :key => @options[:key], :passphrase => @options[:password], :port => @options[:port])
    elsif (@options[:key_data] && @options[:passphrase])
        @session = Net::SSH.start(@hostname, @username, :keys => @options[:keys], :key_data => @options[:key_data], :keys_only => @options[:keys_only], :passphrase => @options[:passphrase], :port => @options[:port])    
    else
        @session = Net::SSH.start(@hostname, @username, :password => @options[:password], :port => @options[:port])
    end
    true
end
connected?() click to toggle source
# File lib/rbvppc/connectable_server.rb, line 31
def connected?
    ! @session.nil?
end
disconnect() click to toggle source
# File lib/rbvppc/connectable_server.rb, line 88
def disconnect
  @session.close
  @session = nil
end
execute_cmd(command) click to toggle source
# File lib/rbvppc/connectable_server.rb, line 54
def execute_cmd(command)
    raise StandardError.new("No connection has been established") if !connected?
    stdout_data = ""
    stderr_data = ""
    exit_code = nil
    exit_signal = nil
    @session.open_channel do |channel|
     channel.exec(command) do |ch, success|
      unless success
       abort "FAILED: couldn't execute command (@session.channel.exec)"
      end
      channel.on_data do |ch,data|
       stdout_data+=data
      end

      channel.on_extended_data do |ch,type,data|
       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
  @session.loop
  raise CommandFailure.new(stderr_data, exit_code, exit_signal) if exit_code != 0
  return stdout_data
  # {:stdout => stdout_data, :stderr => stderr_data, :exit_code => exit_code, :exit_signal => exit_signal}
end
toggle_debug() click to toggle source

Debug attribute toggle for childen classes to employ for logging purposes

# File lib/rbvppc/connectable_server.rb, line 37
def toggle_debug
  @debug ^= true
end