def _save_other_sudoers(sudoers):
sudoers_file = '/etc/sudoers.d/waagent'
if sudoers is None:
return
ext_utils.append_file_contents(sudoers_file, "\n".join(sudoers))
os.chmod("/etc/sudoers.d/waagent", 0o440)
def _set_user_account_pub_key(protect_settings, hutil):
ovf_xml = None
ovf_env = None
try:
ovf_xml = ext_utils.get_file_contents('/var/lib/waagent/ovf-env.xml')
ovf_env = ovf_utils.OvfEnv.parse(ovf_xml, Configuration)
except (EnvironmentError, ValueError, KeyError, AttributeError):
pass
if ovf_xml is None or ovf_env is None:
# default ovf_env with empty data
ovf_env = ovf_utils.OvfEnv()
logger.log("could not load ovf-env.xml")
# user name must be provided if set ssh key or password
if not protect_settings or 'username' not in protect_settings:
return
user_name = protect_settings['username']
user_pass = protect_settings.get('password')
cert_txt = protect_settings.get('ssh_key')
expiration = protect_settings.get('expiration')
no_convert = False
if not user_pass and not cert_txt and not ovf_env.SshPublicKeys:
raise Exception("No password or ssh_key is specified.")
if user_pass is not None and len(user_pass) == 0:
user_pass = None
hutil.log("empty passwords are not allowed, ignoring password reset")
# Reset user account and password, password could be empty
sudoers = _get_other_sudoers(user_name)
error_string = MyDistro.create_account(user_name, user_pass, expiration,
None)
_save_other_sudoers(sudoers)
if error_string is not None:
err_msg = "Failed to create the account or set the password"
ext_utils.add_extension_event(name=hutil.get_name(),
op=constants.WALAEventOperation.Enable,
is_success=False,
message="(02101)" + err_msg)
raise Exception(err_msg + " with " + error_string)
hutil.log("Succeeded in creating the account or setting the password.")
# Allow password authentication if user_pass is provided
if user_pass is not None:
ext_utils.add_extension_event(name=hutil.get_name(),
op="scenario",
is_success=True,
message="create-user-with-password")
_allow_password_auth()
# Reset ssh key with the new public key passed in or reuse old public key.
if cert_txt:
if cert_txt and cert_txt.strip().lower().startswith("ssh-rsa"):
no_convert = True
try:
pub_path = os.path.join('/home/', user_name, '.ssh',
'authorized_keys')
ovf_env.UserName = user_name
if no_convert:
if cert_txt:
pub_path = ovf_env.prepare_dir(pub_path, MyDistro)
final_cert_txt = cert_txt
if not cert_txt.endswith("\n"):
final_cert_txt = final_cert_txt + "\n"
ext_utils.append_file_contents(pub_path, final_cert_txt)
MyDistro.set_se_linux_context(
pub_path, 'unconfined_u:object_r:ssh_home_t:s0')
ext_utils.change_owner(pub_path, user_name)
ext_utils.add_extension_event(name=hutil.get_name(),
op="scenario",
is_success=True,
message="create-user")
hutil.log("Succeeded in resetting ssh_key.")
else:
err_msg = "Failed to reset ssh key because the cert content is empty."
ext_utils.add_extension_event(
name=hutil.get_name(),
op=constants.WALAEventOperation.Enable,
is_success=False,
message="(02100)" + err_msg)
else:
# do the certificate conversion
# we support PKCS8 certificates besides ssh-rsa public keys
_save_cert_str_as_file(cert_txt, 'temp.crt')
pub_path = ovf_env.prepare_dir(pub_path, MyDistro)
retcode = ext_utils.run_command_and_write_stdout_to_file([
constants.Openssl, 'x509', '-in', 'temp.crt', '-noout',
'-pubkey'
], "temp.pub")
if retcode > 0:
raise Exception("Failed to generate public key file.")
MyDistro.ssh_deploy_public_key('temp.pub', pub_path)
os.remove('temp.pub')
os.remove('temp.crt')
ext_utils.add_extension_event(name=hutil.get_name(),
op="scenario",
is_success=True,
message="create-user")
hutil.log("Succeeded in resetting ssh_key.")
except Exception as e:
hutil.log(str(e))
ext_utils.add_extension_event(
name=hutil.get_name(),
op=constants.WALAEventOperation.Enable,
is_success=False,
message="(02100)Failed to reset ssh key.")
raise e