mirror of
https://github.com/thegeeklab/ansible-later.git
synced 2024-11-16 10:00:39 +00:00
235 lines
7.4 KiB
Python
235 lines
7.4 KiB
Python
#!/usr/bin/python
|
|
# -*- coding: utf-8 -*-
|
|
|
|
# (c) 2015, Matt Martz <matt@sivel.net>
|
|
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
|
|
|
|
from __future__ import absolute_import, division, print_function
|
|
__metaclass__ = type
|
|
|
|
|
|
ANSIBLE_METADATA = {'metadata_version': '1.1',
|
|
'status': ['preview'],
|
|
'supported_by': 'community'}
|
|
|
|
|
|
DOCUMENTATION = r'''
|
|
---
|
|
module: expect
|
|
version_added: '2.0'
|
|
short_description: Executes a command and responds to prompts.
|
|
description:
|
|
- The C(expect) module executes a command and responds to prompts.
|
|
- The given command will be executed on all selected nodes. It will not be
|
|
processed through the shell, so variables like C($HOME) and operations
|
|
like C("<"), C(">"), C("|"), and C("&") will not work.
|
|
options:
|
|
command:
|
|
description:
|
|
- The command module takes command to run.
|
|
required: true
|
|
creates:
|
|
description:
|
|
- A filename, when it already exists, this step will B(not) be run.
|
|
removes:
|
|
description:
|
|
- A filename, when it does not exist, this step will B(not) be run.
|
|
chdir:
|
|
description:
|
|
- Change into this directory before running the command.
|
|
responses:
|
|
description:
|
|
- Mapping of expected string/regex and string to respond with. If the
|
|
response is a list, successive matches return successive
|
|
responses. List functionality is new in 2.1.
|
|
required: true
|
|
timeout:
|
|
description:
|
|
- Amount of time in seconds to wait for the expected strings. Use
|
|
C(null) to disable timeout.
|
|
default: 30
|
|
echo:
|
|
description:
|
|
- Whether or not to echo out your response strings.
|
|
default: false
|
|
requirements:
|
|
- python >= 2.6
|
|
- pexpect >= 3.3
|
|
notes:
|
|
- If you want to run a command through the shell (say you are using C(<),
|
|
C(>), C(|), etc), you must specify a shell in the command such as
|
|
C(/bin/bash -c "/path/to/something | grep else").
|
|
- The question, or key, under I(responses) is a python regex match. Case
|
|
insensitive searches are indicated with a prefix of C(?i).
|
|
- By default, if a question is encountered multiple times, its string
|
|
response will be repeated. If you need different responses for successive
|
|
question matches, instead of a string response, use a list of strings as
|
|
the response. The list functionality is new in 2.1.
|
|
- The M(expect) module is designed for simple scenarios. For more complex
|
|
needs, consider the use of expect code with the M(shell) or M(script)
|
|
modules. (An example is part of the M(shell) module documentation)
|
|
author: "Matt Martz (@sivel)"
|
|
'''
|
|
|
|
EXAMPLES = r'''
|
|
- name: Case insensitive password string match
|
|
expect:
|
|
command: passwd username
|
|
responses:
|
|
(?i)password: "MySekretPa$$word"
|
|
# you don't want to show passwords in your logs
|
|
no_log: true
|
|
|
|
- name: Generic question with multiple different responses
|
|
expect:
|
|
command: /path/to/custom/command
|
|
responses:
|
|
Question:
|
|
- response1
|
|
- response2
|
|
- response3
|
|
'''
|
|
|
|
import datetime
|
|
import os
|
|
import traceback
|
|
|
|
try:
|
|
import pexpect
|
|
HAS_PEXPECT = True
|
|
except ImportError:
|
|
HAS_PEXPECT = False
|
|
|
|
from ansible.module_utils.basic import AnsibleModule
|
|
from ansible.module_utils._text import to_native, to_text
|
|
|
|
|
|
def response_closure(module, question, responses):
|
|
resp_gen = (u'%s\n' % to_text(r).rstrip(u'\n') for r in responses)
|
|
|
|
def wrapped(info):
|
|
try:
|
|
return next(resp_gen)
|
|
except StopIteration:
|
|
module.fail_json(msg="No remaining responses for '%s', "
|
|
"output was '%s'" %
|
|
(question,
|
|
info['child_result_list'][-1]))
|
|
|
|
return wrapped
|
|
|
|
|
|
def main():
|
|
module = AnsibleModule(
|
|
argument_spec=dict(
|
|
command=dict(required=True),
|
|
chdir=dict(type='path'),
|
|
creates=dict(type='path'),
|
|
removes=dict(type='path'),
|
|
responses=dict(type='dict', required=True),
|
|
timeout=dict(type='int', default=30),
|
|
echo=dict(type='bool', default=False),
|
|
)
|
|
)
|
|
|
|
if not HAS_PEXPECT:
|
|
module.fail_json(msg='The pexpect python module is required')
|
|
|
|
chdir = module.params['chdir']
|
|
args = module.params['command']
|
|
creates = module.params['creates']
|
|
removes = module.params['removes']
|
|
responses = module.params['responses']
|
|
timeout = module.params['timeout']
|
|
echo = module.params['echo']
|
|
|
|
events = dict()
|
|
for key, value in responses.items():
|
|
if isinstance(value, list):
|
|
response = response_closure(module, key, value)
|
|
else:
|
|
response = u'%s\n' % to_text(value).rstrip(u'\n')
|
|
|
|
events[to_text(key)] = response
|
|
|
|
if args.strip() == '':
|
|
module.fail_json(rc=256, msg="no command given")
|
|
|
|
if chdir:
|
|
chdir = os.path.abspath(chdir)
|
|
os.chdir(chdir)
|
|
|
|
if creates:
|
|
# do not run the command if the line contains creates=filename
|
|
# and the filename already exists. This allows idempotence
|
|
# of command executions.
|
|
if os.path.exists(creates):
|
|
module.exit_json(
|
|
cmd=args,
|
|
stdout="skipped, since %s exists" % creates,
|
|
changed=False,
|
|
rc=0
|
|
)
|
|
|
|
if removes:
|
|
# do not run the command if the line contains removes=filename
|
|
# and the filename does not exist. This allows idempotence
|
|
# of command executions.
|
|
if not os.path.exists(removes):
|
|
module.exit_json(
|
|
cmd=args,
|
|
stdout="skipped, since %s does not exist" % removes,
|
|
changed=False,
|
|
rc=0
|
|
)
|
|
|
|
startd = datetime.datetime.now()
|
|
|
|
try:
|
|
try:
|
|
# Prefer pexpect.run from pexpect>=4
|
|
out, rc = pexpect.run(args, timeout=timeout, withexitstatus=True,
|
|
events=events, cwd=chdir, echo=echo,
|
|
encoding='utf-8')
|
|
except TypeError:
|
|
# Use pexpect.runu in pexpect>=3.3,<4
|
|
out, rc = pexpect.runu(args, timeout=timeout, withexitstatus=True,
|
|
events=events, cwd=chdir, echo=echo)
|
|
except (TypeError, AttributeError) as e:
|
|
# This should catch all insufficient versions of pexpect
|
|
# We deem them insufficient for their lack of ability to specify
|
|
# to not echo responses via the run/runu functions, which would
|
|
# potentially leak sensentive information
|
|
module.fail_json(msg='Insufficient version of pexpect installed '
|
|
'(%s), this module requires pexpect>=3.3. '
|
|
'Error was %s' % (pexpect.__version__, to_native(e)))
|
|
except pexpect.ExceptionPexpect as e:
|
|
module.fail_json(msg='%s' % to_native(e), exception=traceback.format_exc())
|
|
|
|
endd = datetime.datetime.now()
|
|
delta = endd - startd
|
|
|
|
if out is None:
|
|
out = ''
|
|
|
|
result = dict(
|
|
cmd=args,
|
|
stdout=out.rstrip('\r\n'),
|
|
rc=rc,
|
|
start=str(startd),
|
|
end=str(endd),
|
|
delta=str(delta),
|
|
changed=True,
|
|
)
|
|
|
|
if rc is None:
|
|
module.fail_json(msg='command exceeded timeout', **result)
|
|
elif rc != 0:
|
|
module.fail_json(msg='non-zero return code', **result)
|
|
|
|
module.exit_json(**result)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|