140 lines
5.4 KiB
Python
140 lines
5.4 KiB
Python
# Copyright 2012, Tim Bielawa <tbielawa@redhat.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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from ansible.callbacks import vv
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from ansible.errors import AnsibleError as ae
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from ansible.runner.return_data import ReturnData
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from ansible.utils import getch, parse_kv
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import ansible.utils.template as template
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from termios import tcflush, TCIFLUSH
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import datetime
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import sys
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import time
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class ActionModule(object):
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''' pauses execution for a length or time, or until input is received '''
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PAUSE_TYPES = ['seconds', 'minutes', 'prompt', '']
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BYPASS_HOST_LOOP = True
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def __init__(self, runner):
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self.runner = runner
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# Set defaults
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self.duration_unit = 'minutes'
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self.prompt = None
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self.seconds = None
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self.result = {'changed': False,
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'rc': 0,
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'stderr': '',
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'stdout': '',
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'start': None,
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'stop': None,
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'delta': None,
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}
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def run(self, conn, tmp, module_name, module_args, inject, complex_args=None, **kwargs):
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''' run the pause action module '''
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# note: this module does not need to pay attention to the 'check'
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# flag, it always runs
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hosts = ', '.join(self.runner.host_set)
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args = {}
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if complex_args:
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args.update(complex_args)
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# extra template call unneeded?
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args.update(parse_kv(template.template(self.runner.basedir, module_args, inject)))
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# Are 'minutes' or 'seconds' keys that exist in 'args'?
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if 'minutes' in args or 'seconds' in args:
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try:
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if 'minutes' in args:
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self.pause_type = 'minutes'
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# The time() command operates in seconds so we need to
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# recalculate for minutes=X values.
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self.seconds = int(args['minutes']) * 60
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else:
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self.pause_type = 'seconds'
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self.seconds = int(args['seconds'])
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self.duration_unit = 'seconds'
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except ValueError, e:
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raise ae("non-integer value given for prompt duration:\n%s" % str(e))
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# Is 'prompt' a key in 'args'?
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elif 'prompt' in args:
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self.pause_type = 'prompt'
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self.prompt = "[%s]\n%s:\n" % (hosts, args['prompt'])
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# Is 'args' empty, then this is the default prompted pause
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elif len(args.keys()) == 0:
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self.pause_type = 'prompt'
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self.prompt = "[%s]\nPress enter to continue:\n" % hosts
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# I have no idea what you're trying to do. But it's so wrong.
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else:
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raise ae("invalid pause type given. must be one of: %s" % \
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", ".join(self.PAUSE_TYPES))
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vv("created 'pause' ActionModule: pause_type=%s, duration_unit=%s, calculated_seconds=%s, prompt=%s" % \
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(self.pause_type, self.duration_unit, self.seconds, self.prompt))
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########################################################################
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# Begin the hard work!
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try:
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self._start()
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if not self.pause_type == 'prompt':
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print "[%s]\nPausing for %s seconds" % (hosts, self.seconds)
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time.sleep(self.seconds)
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else:
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# Clear out any unflushed buffered input which would
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# otherwise be consumed by raw_input() prematurely.
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tcflush(sys.stdin, TCIFLUSH)
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self.result['user_input'] = raw_input(self.prompt)
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except KeyboardInterrupt:
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while True:
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print '\nAction? (a)bort/(c)ontinue: '
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c = getch()
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if c == 'c':
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# continue playbook evaluation
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break
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elif c == 'a':
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# abort further playbook evaluation
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raise ae('user requested abort!')
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finally:
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self._stop()
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return ReturnData(conn=conn, result=self.result)
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def _start(self):
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''' mark the time of execution for duration calculations later '''
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self.start = time.time()
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self.result['start'] = str(datetime.datetime.now())
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if not self.pause_type == 'prompt':
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print "(^C-c = continue early, ^C-a = abort)"
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def _stop(self):
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''' calculate the duration we actually paused for and then
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finish building the task result string '''
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duration = time.time() - self.start
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self.result['stop'] = str(datetime.datetime.now())
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self.result['delta'] = int(duration)
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if self.duration_unit == 'minutes':
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duration = round(duration / 60.0, 2)
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else:
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duration = round(duration, 2)
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self.result['stdout'] = "Paused for %s %s" % (duration, self.duration_unit)
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