Class: ChefMetal::Transport::SSH
- Inherits:
-
ChefMetal::Transport
- Object
- ChefMetal::Transport
- ChefMetal::Transport::SSH
- Defined in:
- lib/chef_metal/transport/ssh.rb
Defined Under Namespace
Classes: SSHResult
Instance Attribute Summary collapse
-
#host ⇒ Object
readonly
Returns the value of attribute host.
-
#options ⇒ Object
readonly
Returns the value of attribute options.
-
#ssh_options ⇒ Object
readonly
Returns the value of attribute ssh_options.
-
#username ⇒ Object
readonly
Returns the value of attribute username.
Instance Method Summary collapse
- #available? ⇒ Boolean
- #disconnect ⇒ Object
- #download_file(path, local_path) ⇒ Object
- #execute(command, execute_options = {}) ⇒ Object
-
#initialize(host, username, ssh_options, options) ⇒ SSH
constructor
A new instance of SSH.
- #make_url_available_to_remote(local_url) ⇒ Object
- #read_file(path) ⇒ Object
- #upload_file(local_path, path) ⇒ Object
- #write_file(path, content) ⇒ Object
Constructor Details
#initialize(host, username, ssh_options, options) ⇒ SSH
Returns a new instance of SSH.
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# File 'lib/chef_metal/transport/ssh.rb', line 8 def initialize(host, username, , ) require 'net/ssh' require 'net/scp' @host = host @username = username @ssh_options = @options = end |
Instance Attribute Details
#host ⇒ Object (readonly)
Returns the value of attribute host.
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# File 'lib/chef_metal/transport/ssh.rb', line 17 def host @host end |
#options ⇒ Object (readonly)
Returns the value of attribute options.
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# File 'lib/chef_metal/transport/ssh.rb', line 20 def @options end |
#ssh_options ⇒ Object (readonly)
Returns the value of attribute ssh_options.
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# File 'lib/chef_metal/transport/ssh.rb', line 19 def @ssh_options end |
#username ⇒ Object (readonly)
Returns the value of attribute username.
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# File 'lib/chef_metal/transport/ssh.rb', line 18 def username @username end |
Instance Method Details
#available? ⇒ Boolean
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# File 'lib/chef_metal/transport/ssh.rb', line 123 def available? execute('pwd') true rescue Errno::ETIMEDOUT, Errno::ECONNREFUSED, Errno::ECONNRESET, Net::SSH::AuthenticationFailed, Net::SSH::Disconnect, Net::SSH::HostKeyMismatch Chef::Log.debug("#{username}@#{host} unavailable: could not execute 'pwd' on #{host}: #{$!.inspect}") false end |
#disconnect ⇒ Object
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# File 'lib/chef_metal/transport/ssh.rb', line 112 def disconnect if @session begin Chef::Log.debug("Closing SSH session on #{username}@#{host}") @session.close rescue end @session = nil end end |
#download_file(path, local_path) ⇒ Object
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# File 'lib/chef_metal/transport/ssh.rb', line 70 def download_file(path, local_path) Chef::Log.debug("Downloading file #{path} from #{username}@#{host} to local #{local_path}") download(path, local_path) end |
#execute(command, execute_options = {}) ⇒ Object
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# File 'lib/chef_metal/transport/ssh.rb', line 22 def execute(command, = {}) Chef::Log.info("Executing #{[:prefix]}#{command} on #{username}@#{host}") stdout = '' stderr = '' exitstatus = nil channel = session.open_channel do |channel| # Enable PTY unless otherwise specified, some instances require this unless [:ssh_pty_enable] == false channel.request_pty do |chan, success| raise "could not get pty" if !success && [:ssh_pty_enable] end end channel.exec("#{[:prefix]}#{command}") do |ch, success| raise "could not execute command: #{command.inspect}" unless success channel.on_data do |ch2, data| stdout << data stream_chunk(, data, nil) end channel.on_extended_data do |ch2, type, data| stderr << data stream_chunk(, nil, data) end channel.on_request "exit-status" do |ch, data| exitstatus = data.read_long end end end channel.wait Chef::Log.info("Completed #{command} on #{username}@#{host}: exit status #{exitstatus}") Chef::Log.debug("Stdout was:\n#{stdout}") if stdout != '' && ![:stream] && ![:stream_stdout] Chef::Log.info("Stderr was:\n#{stderr}") if stderr != '' && ![:stream] && ![:stream_stderr] SSHResult.new(command, , stdout, stderr, exitstatus) end |
#make_url_available_to_remote(local_url) ⇒ Object
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# File 'lib/chef_metal/transport/ssh.rb', line 101 def make_url_available_to_remote(local_url) uri = URI(local_url) host = Socket.getaddrinfo(uri.host, uri.scheme, nil, :STREAM)[0][3] if host == '127.0.0.1' || host == '[::1]' # TODO IPv6 Chef::Log.debug("Forwarding local server 127.0.0.1:#{uri.port} to port #{uri.port} on #{username}@#{host}") session.forward.remote(uri.port, "127.0.0.1", uri.port) end local_url end |
#read_file(path) ⇒ Object
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# File 'lib/chef_metal/transport/ssh.rb', line 63 def read_file(path) Chef::Log.debug("Reading file #{path} from #{username}@#{host}") result = StringIO.new download(path, result) result.string end |
#upload_file(local_path, path) ⇒ Object
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# File 'lib/chef_metal/transport/ssh.rb', line 88 def upload_file(local_path, path) if [:prefix] # Make a tempfile on the other side, upload to that, and sudo mv / chown / etc. remote_tempfile = "/tmp/#{File.basename(path)}.#{Random.rand(2**32)}" Chef::Log.debug("Uploading #{local_path} to #{remote_tempfile} on #{username}@#{host}") Net::SCP.new(session).upload!(local_path, remote_tempfile) execute("mv #{remote_tempfile} #{path}") else Chef::Log.debug("Uploading #{local_path} to #{path} on #{username}@#{host}") Net::SCP.new(session).upload!(local_path, path) end end |
#write_file(path, content) ⇒ Object
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# File 'lib/chef_metal/transport/ssh.rb', line 75 def write_file(path, content) if [:prefix] # Make a tempfile on the other side, upload to that, and sudo mv / chown / etc. remote_tempfile = "/tmp/#{File.basename(path)}.#{Random.rand(2**32)}" Chef::Log.debug("Writing #{content.length} bytes to #{remote_tempfile} on #{username}@#{host}") Net::SCP.new(session).upload!(StringIO.new(content), remote_tempfile) execute("mv #{remote_tempfile} #{path}") else Chef::Log.debug("Writing #{content.length} bytes to #{path} on #{username}@#{host}") Net::SCP.new(session).upload!(StringIO.new(content), path) end end |