Class: OnlyofficeDigitaloceanWrapper::SshChecker

Inherits:
Object
  • Object
show all
Includes:
LoggerWrapper
Defined in:
lib/onlyoffice_digitalocean_wrapper/ssh_checker.rb

Overview

Class for check if ssh can be connected

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from LoggerWrapper

#logger

Constructor Details

#initialize(ip) ⇒ SshChecker

Returns a new instance of SshChecker.

Parameters:

  • ip (String) —

    ip of server to check



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# File 'lib/onlyoffice_digitalocean_wrapper/ssh_checker.rb', line 15

def initialize(ip)
  @ip = ip
end

Instance Attribute Details

#ip ⇒ String (readonly)

Returns ip of server.

Returns:

  • (String) —

    ip of server



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# File 'lib/onlyoffice_digitalocean_wrapper/ssh_checker.rb', line 12

def ip
  @ip
end

Instance Method Details

#ssh_up? ⇒ Boolean

Check is ssh available for connection right now

Returns:

  • (Boolean) 


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# File 'lib/onlyoffice_digitalocean_wrapper/ssh_checker.rb', line 39

def ssh_up?
  Net::Telnet.new('Host' => @ip,
                  'Timeout' => 1,
                  'Port' => 22)
  true
rescue StandardError
  false
end

#wait_until_ssh_up(timeout: 60) ⇒ void

This method returns an undefined value.

Wait until ssh server on server is up and available for connection

Parameters:

  • timeout (Integer) (defaults to: 60) —

    how much we should wait for connection

Raises:



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# File 'lib/onlyoffice_digitalocean_wrapper/ssh_checker.rb', line 22

def wait_until_ssh_up(timeout: 60)
  wait_between_tries = 5
  tries = timeout / wait_between_tries
  tries.times do |try|
    if ssh_up?
      logger.info("SSH on `#{@ip}` is up. Waiting finished")
      return true
    end

    logger.info("SSH on `#{@ip}` is not up. Waited for #{try * wait_between_tries} seconds of #{timeout}")
    sleep wait_between_tries
  end
  raise SshCheckerSshUpTimeout, "SSH on `#{@ip}` is not up for #{timeout} seconds. Could not proceed"
end