community.general/lib/ansible/plugins/action/wait_for_connection.py
Toshio Kuratomi 71f46d69d6 First bit of fixing temporary to have one source of truth (#35747)
* First bit of fixing temporary to have one source of truth

* Fix pep8

* Remove explicit make_tmp_path() in copy

The copy action plugin sets TRANSFER_FILES=True so it does not need to
set the temporary directory explicitly; the base class's run() method
will do that for us.

* Fix for calling a module's run when a shell has already created a temp path.

* Remember to inform the rest of the world when tempdir is removed

* New strategy for how to warn on passing tmp

Now we just warn when calling the parent class run() early.  If the
module does a late call to the parent run() and doesn't make use of the
temporary directory, then we don't check for the possibility that the
user mistakenly is sending tmp in.  If we truly deprecate this (rather
than ignoring it forever) then we might want to switch back to checking
for someone passing a value in as tmp.

* Remove tmp parameter from _execute_module as well

* Port all action plugins to not send tmp explicitly

This is now handled inside of _execute_module via the
_connection._shell.tempdir attribute.

Also update warnings and docs to tell people to set the attribute
instead of using _execute_module's tmp parameter.

* Always set local tempdir variable
2018-02-07 15:11:36 -08:00

118 lines
4.3 KiB
Python

# (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.plugins.action import ActionBase
try:
from __main__ import display
except ImportError:
from ansible.utils.display import Display
display = Display()
class TimedOutException(Exception):
pass
class ActionModule(ActionBase):
TRANSFERS_FILES = False
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:
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, e))
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")
# 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 hasattr(self._connection, '_shell_type') and self._connection._shell_type == 'powershell':
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 success", sleep=sleep)
except TimedOutException as e:
result['failed'] = True
result['msg'] = str(e)
elapsed = datetime.now() - start
result['elapsed'] = elapsed.seconds
return result