Class: SSH

Inherits:
Object
  • Object
show all
Defined in:
lib/danarchy_sys/ssh.rb

Class Method Summary collapse

Class Method Details

.new(connector, opts = {}) ⇒ Object 



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# File 'lib/danarchy_sys/ssh.rb', line 5

def self.new(connector, opts = {})
  # connector: { ipv4: "str", ssh_user: "str", ssh_key: "str" }
  # options: { command: "str", timeout: int, quiet: true|false }
  opts[:timeout] ||= 30
  opts[:quiet]   ||= false
  pid, stdout, stderr = nil
  ssh  = "ssh -i '#{connector[:ssh_key]}' #{connector[:ssh_user]}@#{connector[:ipv4]} "
  ssh += "-o StrictHostKeyChecking=no "
  ssh += "-o ConnectTimeout=#{opts[:timeout]} " if opts[:timeout]
  
  if opts[:command]
    puts "Running '#{opts[:command]}' on '#{connector[:ipv4]}'" unless opts[:quiet]
    ssh += Shellwords.shellescape(opts[:command])

    Open3.popen3(ssh) do |i, o, e, t|
      pid = t.pid
      (out, err) = o.read, e.read
      stdout = !out.empty? ? out : nil
      stderr = !err.empty? ? err : nil
    end
  else
    return system(ssh)
  end

  if opts[:quiet] == false
    puts "------\nErrored at: #{caller_locations.first.label} Line: #{caller_locations.first.lineno}\nSTDERR: ", stderr, '------' if stderr
    puts "------\nSTDOUT: ", stdout, '------' if stdout
  end
  { pid: pid, stdout: stdout, stderr: stderr }
end