Module: Kontena::Machine::CertHelper

Defined in:
lib/kontena/machine/cert_helper.rb

Instance Method Summary collapse

Instance Method Details

#certificate_public_key(cert) ⇒ Object 



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# File 'lib/kontena/machine/cert_helper.rb', line 7

def certificate_public_key(cert)
  cert[/(-----BEGIN CERTIFICATE-----.+?-----END CERTIFICATE-----)/m, 1]
end

#generate_self_signed_cert ⇒ Object 



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# File 'lib/kontena/machine/cert_helper.rb', line 11

def generate_self_signed_cert
  key = OpenSSL::PKey::RSA.new(2048)
  public_key = key.public_key

  subject = "/C=FI/O=Test/OU=Test/CN=Test"

  cert = OpenSSL::X509::Certificate.new
  cert.subject = cert.issuer = OpenSSL::X509::Name.parse(subject)
  cert.not_before = Time.now
  cert.not_after = Time.now + (10 * 365 * 24 * 60 * 60)
  cert.public_key = public_key
  cert.serial = 0x0
  cert.version = 2

  ef = OpenSSL::X509::ExtensionFactory.new
  ef.subject_certificate = cert
  ef.issuer_certificate = cert
  cert.extensions = [
    ef.create_extension("basicConstraints","CA:TRUE", true),
    ef.create_extension("subjectKeyIdentifier", "hash")
  ]
  cert.add_extension ef.create_extension("authorityKeyIdentifier",
                                         "keyid:always,issuer:always")

  cert.sign key, OpenSSL::Digest::SHA1.new

  pem = cert.to_pem
  pem << key.to_s
  pem
end