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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
# Use win_ping on winrm/powershell, else use ping
if getattr(self._connection._shell, "_IS_WINDOWS", False):
ping_result = self._execute_module(module_name='win_ping', module_args=dict(), task_vars=task_vars)
else:
ping_result = self._execute_module(module_name='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
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