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ansible/lib/ansible/callbacks.py

519 lines
19 KiB
Python

# (C) 2012-2013, Michael DeHaan, <michael.dehaan@gmail.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/>.
import utils
import sys
import getpass
import os
import subprocess
import os.path
from ansible.color import stringc
cowsay = None
if os.getenv("ANSIBLE_NOCOWS") is not None:
cowsay = None
elif os.path.exists("/usr/bin/cowsay"):
cowsay = "/usr/bin/cowsay"
elif os.path.exists("/usr/games/cowsay"):
cowsay = "/usr/games/cowsay"
elif os.path.exists("/usr/local/bin/cowsay"):
# BSD path for cowsay
cowsay = "/usr/local/bin/cowsay"
# ****************************************************************************
# 1.1 DEV NOTES
# FIXME -- in order to make an ideal callback system, all of these should have
# access to the current task and/or play and host objects. We need to this
# while keeping present callbacks functionally intact and will do so.
# ****************************************************************************
def call_callback_module(method_name, *args, **kwargs):
for callback_plugin in utils.plugins.callback_loader.all():
methods = [
getattr(callback_plugin, method_name, None),
getattr(callback_plugin, 'on_any', None)
]
for method in methods:
if method is not None:
method(*args, **kwargs)
def vv(msg, host=None):
return verbose(msg, host=host, caplevel=1)
def vvv(msg, host=None):
return verbose(msg, host=host, caplevel=2)
def verbose(msg, host=None, caplevel=2):
if utils.VERBOSITY > caplevel:
if host is None:
print stringc(msg, 'blue')
else:
print stringc("<%s> %s" % (host, msg), 'blue')
class AggregateStats(object):
''' holds stats about per-host activity during playbook runs '''
def __init__(self):
self.processed = {}
self.failures = {}
self.ok = {}
self.dark = {}
self.changed = {}
self.skipped = {}
def _increment(self, what, host):
''' helper function to bump a statistic '''
self.processed[host] = 1
prev = (getattr(self, what)).get(host, 0)
getattr(self, what)[host] = prev+1
def compute(self, runner_results, setup=False, poll=False, ignore_errors=False):
''' walk through all results and increment stats '''
for (host, value) in runner_results.get('contacted', {}).iteritems():
if not ignore_errors and (('failed' in value and bool(value['failed'])) or
('rc' in value and value['rc'] != 0)):
self._increment('failures', host)
elif 'skipped' in value and bool(value['skipped']):
self._increment('skipped', host)
elif 'changed' in value and bool(value['changed']):
if not setup and not poll:
self._increment('changed', host)
self._increment('ok', host)
else:
if not poll or ('finished' in value and bool(value['finished'])):
self._increment('ok', host)
for (host, value) in runner_results.get('dark', {}).iteritems():
self._increment('dark', host)
def summarize(self, host):
''' return information about a particular host '''
return dict(
ok = self.ok.get(host, 0),
failures = self.failures.get(host, 0),
unreachable = self.dark.get(host,0),
changed = self.changed.get(host, 0),
skipped = self.skipped.get(host, 0)
)
########################################################################
def regular_generic_msg(hostname, result, oneline, caption):
''' output on the result of a module run that is not command '''
if not oneline:
return "%s | %s >> %s\n" % (hostname, caption, utils.jsonify(result,format=True))
else:
return "%s | %s >> %s\n" % (hostname, caption, utils.jsonify(result))
def banner(msg):
if cowsay:
cmd = subprocess.Popen([cowsay, "-W", "60", msg],
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
(out, err) = cmd.communicate()
return "%s\n" % out
else:
return "\n%s ********************* " % msg
def command_generic_msg(hostname, result, oneline, caption):
''' output the result of a command run '''
rc = result.get('rc', '0')
stdout = result.get('stdout','')
stderr = result.get('stderr', '')
msg = result.get('msg', '')
hostname = hostname.encode('utf-8')
caption = caption.encode('utf-8')
if not oneline:
buf = "%s | %s | rc=%s >>\n" % (hostname, caption, result.get('rc',0))
if stdout:
buf += stdout
if stderr:
buf += stderr
if msg:
buf += msg
return buf + "\n"
else:
if stderr:
return "%s | %s | rc=%s | (stdout) %s (stderr) %s" % (hostname, caption, rc, stdout, stderr)
else:
return "%s | %s | rc=%s | (stdout) %s" % (hostname, caption, rc, stdout)
def host_report_msg(hostname, module_name, result, oneline):
''' summarize the JSON results for a particular host '''
failed = utils.is_failed(result)
msg = ''
if module_name in [ 'command', 'shell', 'raw' ] and 'ansible_job_id' not in result and result.get('parsed',True) != False:
if not failed:
msg = command_generic_msg(hostname, result, oneline, 'success')
else:
msg = command_generic_msg(hostname, result, oneline, 'FAILED')
else:
if not failed:
msg = regular_generic_msg(hostname, result, oneline, 'success')
else:
msg = regular_generic_msg(hostname, result, oneline, 'FAILED')
return msg
###############################################
class DefaultRunnerCallbacks(object):
''' no-op callbacks for API usage of Runner() if no callbacks are specified '''
def __init__(self):
pass
def on_failed(self, host, res, ignore_errors=False):
call_callback_module('runner_on_failed', host, res, ignore_errors=ignore_errors)
def on_ok(self, host, res):
call_callback_module('runner_on_ok', host, res)
def on_error(self, host, msg):
call_callback_module('runner_on_error', host, msg)
def on_skipped(self, host, item=None):
call_callback_module('runner_on_skipped', host, item=item)
def on_unreachable(self, host, res):
call_callback_module('runner_on_unreachable', host, res)
def on_no_hosts(self):
call_callback_module('runner_on_no_hosts')
def on_async_poll(self, host, res, jid, clock):
call_callback_module('runner_on_async_poll', host, res, jid, clock)
def on_async_ok(self, host, res, jid):
call_callback_module('runner_on_async_ok', host, res, jid)
def on_async_failed(self, host, res, jid):
call_callback_module('runner_on_async_failed', host, res, jid)
def on_file_diff(self, host, before_string, after_string):
if before_string and after_string:
call_callback_module('runner_on_file_diff', before_string, after_string)
########################################################################
class CliRunnerCallbacks(DefaultRunnerCallbacks):
''' callbacks for use by /usr/bin/ansible '''
def __init__(self):
# set by /usr/bin/ansible later
self.options = None
self._async_notified = {}
def on_failed(self, host, res, ignore_errors=False):
self._on_any(host,res)
super(CliRunnerCallbacks, self).on_failed(host, res, ignore_errors=ignore_errors)
def on_ok(self, host, res):
self._on_any(host,res)
super(CliRunnerCallbacks, self).on_ok(host, res)
def on_unreachable(self, host, res):
if type(res) == dict:
res = res.get('msg','')
print "%s | FAILED => %s" % (host, res)
if self.options.tree:
utils.write_tree_file(
self.options.tree, host,
utils.jsonify(dict(failed=True, msg=res),format=True)
)
super(CliRunnerCallbacks, self).on_unreachable(host, res)
def on_skipped(self, host, item=None):
print "%s | skipped" % (host)
super(CliRunnerCallbacks, self).on_skipped(host, item)
def on_error(self, host, err):
print >>sys.stderr, "err: [%s] => %s\n" % (host, err)
super(CliRunnerCallbacks, self).on_error(host, err)
def on_no_hosts(self):
print >>sys.stderr, "no hosts matched\n"
super(CliRunnerCallbacks, self).on_no_hosts()
def on_async_poll(self, host, res, jid, clock):
if jid not in self._async_notified:
self._async_notified[jid] = clock + 1
if self._async_notified[jid] > clock:
self._async_notified[jid] = clock
print "<job %s> polling, %ss remaining"%(jid, clock)
super(CliRunnerCallbacks, self).on_async_poll(host, res, jid, clock)
def on_async_ok(self, host, res, jid):
print "<job %s> finished on %s => %s"%(jid, host, utils.jsonify(res,format=True))
super(CliRunnerCallbacks, self).on_async_ok(host, res, jid)
def on_async_failed(self, host, res, jid):
print "<job %s> FAILED on %s => %s"%(jid, host, utils.jsonify(res,format=True))
super(CliRunnerCallbacks, self).on_async_failed(host,res,jid)
def _on_any(self, host, result):
result2 = result.copy()
result2.pop('invocation', None)
print host_report_msg(host, self.options.module_name, result2, self.options.one_line)
if self.options.tree:
utils.write_tree_file(self.options.tree, host, utils.jsonify(result2,format=True))
def on_file_diff(self, host, before_string, after_string):
if before_string and after_string:
if self.options.diff:
print utils.get_diff(before_string, after_string)
super(CliRunnerCallbacks, self).on_file_diff(host, before_string, after_string)
########################################################################
class PlaybookRunnerCallbacks(DefaultRunnerCallbacks):
''' callbacks used for Runner() from /usr/bin/ansible-playbook '''
def __init__(self, stats, verbose=utils.VERBOSITY):
self.verbose = verbose
self.stats = stats
self._async_notified = {}
def on_unreachable(self, host, results):
item = None
if type(results) == dict:
item = results.get('item', None)
if item:
msg = "fatal: [%s] => (item=%s) => %s" % (host, item, results)
else:
msg = "fatal: [%s] => %s" % (host, results)
print stringc(msg, 'red')
super(PlaybookRunnerCallbacks, self).on_unreachable(host, results)
def on_failed(self, host, results, ignore_errors=False):
results2 = results.copy()
results2.pop('invocation', None)
item = results2.get('item', None)
parsed = results2.get('parsed', True)
module_msg = ''
if not parsed:
module_msg = results2.pop('msg', None)
stderr = results2.pop('stderr', None)
stdout = results2.pop('stdout', None)
returned_msg = results2.pop('msg', None)
if item:
msg = "failed: [%s] => (item=%s) => %s" % (host, item, utils.jsonify(results2))
else:
msg = "failed: [%s] => %s" % (host, utils.jsonify(results2))
print stringc(msg, 'red')
if stderr:
print stringc("stderr: %s" % stderr, 'red')
if stdout:
print stringc("stdout: %s" % stdout, 'red')
if returned_msg:
print stringc("msg: %s" % returned_msg, 'red')
if not parsed and module_msg:
print stringc("invalid output was: %s" % module_msg, 'red')
if ignore_errors:
print stringc("...ignoring", 'cyan')
super(PlaybookRunnerCallbacks, self).on_failed(host, results, ignore_errors=ignore_errors)
def on_ok(self, host, host_result):
item = host_result.get('item', None)
host_result2 = host_result.copy()
host_result2.pop('invocation', None)
changed = host_result.get('changed', False)
ok_or_changed = 'ok'
if changed:
ok_or_changed = 'changed'
# show verbose output for non-setup module results if --verbose is used
msg = ''
if not self.verbose or host_result2.get("verbose_override",None) is not None:
if item:
msg = "%s: [%s] => (item=%s)" % (ok_or_changed, host, item)
else:
if 'ansible_job_id' not in host_result or 'finished' in host_result:
msg = "%s: [%s]" % (ok_or_changed, host)
else:
# verbose ...
if item:
msg = "%s: [%s] => (item=%s) => %s" % (ok_or_changed, host, item, utils.jsonify(host_result2))
else:
if 'ansible_job_id' not in host_result or 'finished' in host_result2:
msg = "%s: [%s] => %s" % (ok_or_changed, host, utils.jsonify(host_result2))
if msg != '':
if not changed:
print stringc(msg, 'green')
else:
print stringc(msg, 'yellow')
super(PlaybookRunnerCallbacks, self).on_ok(host, host_result)
def on_error(self, host, err):
item = err.get('item', None)
msg = ''
if item:
msg = "err: [%s] => (item=%s) => %s" % (host, item, err)
else:
msg = "err: [%s] => %s" % (host, err)
msg = stringc(msg, 'red')
print >>sys.stderr, msg
super(PlaybookRunnerCallbacks, self).on_error(host, err)
def on_skipped(self, host, item=None):
msg = ''
if item:
msg = "skipping: [%s] => (item=%s)" % (host, item)
else:
msg = "skipping: [%s]" % host
print stringc(msg, 'cyan')
super(PlaybookRunnerCallbacks, self).on_skipped(host, item)
def on_no_hosts(self):
print stringc("FATAL: no hosts matched or all hosts have already failed -- aborting\n", 'red')
super(PlaybookRunnerCallbacks, self).on_no_hosts()
def on_async_poll(self, host, res, jid, clock):
if jid not in self._async_notified:
self._async_notified[jid] = clock + 1
if self._async_notified[jid] > clock:
self._async_notified[jid] = clock
msg = "<job %s> polling, %ss remaining"%(jid, clock)
print stringc(msg, 'cyan')
super(PlaybookRunnerCallbacks, self).on_async_poll(host,res,jid,clock)
def on_async_ok(self, host, res, jid):
msg = "<job %s> finished on %s"%(jid, host)
print stringc(msg, 'cyan')
super(PlaybookRunnerCallbacks, self).on_async_ok(host, res, jid)
def on_async_failed(self, host, res, jid):
msg = "<job %s> FAILED on %s"%(jid, host)
print stringc(msg, 'red')
super(PlaybookRunnerCallbacks, self).on_async_failed(host,res,jid)
def on_file_diff(self, host, before_string, after_string):
if before_string and after_string:
print utils.get_diff(before_string, after_string)
super(PlaybookRunnerCallbacks, self).on_file_diff(host, before_string, after_string)
########################################################################
class PlaybookCallbacks(object):
''' playbook.py callbacks used by /usr/bin/ansible-playbook '''
def __init__(self, verbose=False):
self.verbose = verbose
def on_start(self):
call_callback_module('playbook_on_start')
def on_notify(self, host, handler):
call_callback_module('playbook_on_notify', host, handler)
def on_no_hosts_matched(self):
print stringc("skipping: no hosts matched", 'cyan')
call_callback_module('playbook_on_no_hosts_matched')
def on_no_hosts_remaining(self):
print stringc("\nFATAL: all hosts have already failed -- aborting", 'red')
call_callback_module('playbook_on_no_hosts_remaining')
def on_task_start(self, name, is_conditional):
msg = "TASK: [%s]" % name
if is_conditional:
msg = "NOTIFIED: [%s]" % name
print banner(msg)
call_callback_module('playbook_on_task_start', name, is_conditional)
def on_vars_prompt(self, varname, private=True, prompt=None, encrypt=None, confirm=False, salt_size=None, salt=None, default=None):
if prompt:
msg = "%s: " % prompt
else:
msg = 'input for %s: ' % varname
def prompt(prompt, private):
if private:
return getpass.getpass(prompt)
return raw_input(prompt)
if confirm:
while True:
result = prompt(msg, private)
second = prompt("confirm " + msg, private)
if result == second:
break
print "***** VALUES ENTERED DO NOT MATCH ****"
else:
result = prompt(msg, private)
# if result is false and default is not None
if not result and default:
result = default
if encrypt:
result = utils.do_encrypt(result,encrypt,salt_size,salt)
call_callback_module( 'playbook_on_vars_prompt', varname, private=private, prompt=prompt,
encrypt=encrypt, confirm=confirm, salt_size=salt_size, salt=None, default=default
)
return result
def on_setup(self):
print banner("GATHERING FACTS")
call_callback_module('playbook_on_setup')
def on_import_for_host(self, host, imported_file):
msg = "%s: importing %s" % (host, imported_file)
print stringc(msg, 'cyan')
call_callback_module('playbook_on_import_for_host', host, imported_file)
def on_not_import_for_host(self, host, missing_file):
msg = "%s: not importing file: %s" % (host, missing_file)
print stringc(msg, 'cyan')
call_callback_module('playbook_on_not_import_for_host', host, missing_file)
def on_play_start(self, pattern):
print banner("PLAY [%s]" % pattern)
call_callback_module('playbook_on_play_start', pattern)
def on_stats(self, stats):
call_callback_module('playbook_on_stats', stats)