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# (c) 2017, Dag Wieers <dag@wieers.com> # # This file is part of Ansible # # Ansible is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # Ansible is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with Ansible. If not, see <http://www.gnu.org/licenses/>. # CI-required python3 boilerplate from __future__ import (absolute_import, division, print_function) __metaclass__ = type import time from datetime import datetime, timedelta from ansible.module_utils._text import to_text from ansible.plugins.action import ActionBase from ansible.utils.display import Display display = Display() class TimedOutException(Exception): pass class ActionModule(ActionBase): TRANSFERS_FILES = False _VALID_ARGS = frozenset(('connect_timeout', 'delay', 'sleep', 'timeout')) DEFAULT_CONNECT_TIMEOUT = 5 DEFAULT_DELAY = 0 DEFAULT_SLEEP = 1 DEFAULT_TIMEOUT = 600 def do_until_success_or_timeout(self, what, timeout, connect_timeout, what_desc, sleep=1): max_end_time = datetime.utcnow() + timedelta(seconds=timeout) e = None while datetime.utcnow() < max_end_time: try: what(connect_timeout) if what_desc: display.debug("wait_for_connection: %s success" % what_desc) return except Exception as e: error = e # PY3 compatibility to store exception for use outside of this block if what_desc: display.debug("wait_for_connection: %s fail (expected), retrying in %d seconds..." % (what_desc, sleep)) time.sleep(sleep) raise TimedOutException("timed out waiting for %s: %s" % (what_desc, error)) def run(self, tmp=None, task_vars=None): if task_vars is None: task_vars = dict() connect_timeout = int(self._task.args.get('connect_timeout', self.DEFAULT_CONNECT_TIMEOUT)) delay = int(self._task.args.get('delay', self.DEFAULT_DELAY)) sleep = int(self._task.args.get('sleep', self.DEFAULT_SLEEP)) timeout = int(self._task.args.get('timeout', self.DEFAULT_TIMEOUT)) if self._play_context.check_mode: display.vvv("wait_for_connection: skipping for check_mode") return dict(skipped=True) result = super(ActionModule, self).run(tmp, task_vars) del tmp # tmp no longer has any effect def ping_module_test(connect_timeout): ''' Test ping module, if available ''' display.vvv("wait_for_connection: attempting ping module test") # re-run interpreter discovery if we ran it in the first iteration if self._discovered_interpreter_key: task_vars['ansible_facts'].pop(self._discovered_interpreter_key, None) # call connection reset between runs if it's there try: self._connection.reset() except AttributeError: pass ping_result = self._execute_module(module_name='ansible.legacy.ping', module_args=dict(), task_vars=task_vars) # Test module output if ping_result['ping'] != 'pong': raise Exception('ping test failed') start = datetime.now() if delay: time.sleep(delay) try: # If the connection has a transport_test method, use it first if hasattr(self._connection, 'transport_test'): self.do_until_success_or_timeout(self._connection.transport_test, timeout, connect_timeout, what_desc="connection port up", sleep=sleep) # Use the ping module test to determine end-to-end connectivity self.do_until_success_or_timeout(ping_module_test, timeout, connect_timeout, what_desc="ping module test", sleep=sleep) except TimedOutException as e: result['failed'] = True result['msg'] = to_text(e) elapsed = datetime.now() - start result['elapsed'] = elapsed.seconds # remove a temporary path we created self._remove_tmp_path(self._connection._shell.tmpdir) return result