Module: Kitchen::Driver::Oci::Mixin::SshKeys::RSA

Defined in:
lib/kitchen/driver/oci/mixin/ssh_keys.rb

Overview

Mixins required to generate a RSA key pair.

Author:

  • Justin Steele <justin.steele@oracle.com>

Instance Method Summary collapse

Instance Method Details

#generate_key_pair ⇒ Object

Generates an RSA key pair to be used to SSH to the instance and updates the state with the full path to the private key.



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# File 'lib/kitchen/driver/oci/mixin/ssh_keys.rb', line 76

def generate_key_pair
  rsa_key = OpenSSL::PKey::RSA.new(4096)
  write_private_key(rsa_key)
  write_public_key(rsa_key)
  state.store(:ssh_key, private_key_file)
end

#write_private_key(rsa_key) ⇒ Object

Writes the private key.

Parameters:

  • rsa_key (OpenSSL::PKey::RSA) —

    the generated RSA key.



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# File 'lib/kitchen/driver/oci/mixin/ssh_keys.rb', line 86

def write_private_key(rsa_key)
  File.open(private_key_file, "wb") { |k| k.write(rsa_key.to_pem) }
  File.chmod(0600, private_key_file)
end

#write_public_key(rsa_key) ⇒ Object

Writes the encoded private key as a public key.

Parameters:

  • rsa_key (OpenSSL::PKey::RSA) —

    the generated RSA key.



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# File 'lib/kitchen/driver/oci/mixin/ssh_keys.rb', line 94

def write_public_key(rsa_key)
  public_key = ["#{[7].pack("N")}#{algorithm}#{rsa_key.e.to_s(0)}#{rsa_key.n.to_s(0)}"].pack("m0")
  File.open(public_key_file, "wb") { |k| k.write("#{algorithm} #{public_key} #{config[:instance_name]}") }
  File.chmod(0600, public_key_file)
end