community.general/lib/ansible/plugins/callback/mail.py
Dag Wieers e9270fb100 mail callback: Exception info less important
So it seems on failure the last raised (but handled) exception is being
added to the task failure result, which makes it often unrelated to the
actual failure.

Since we assumed the exception was always related, using the exception
information for the subject is plain wrong (and let me to debug
completely unrelated ghost issues).

Also the exception details are now moved back in the output. Maybe we
should not show it unless there's no other information ? But at least it
should not be the mail's subject.
2018-04-30 21:45:10 -04:00

233 lines
8.2 KiB
Python

# -*- coding: utf-8 -*-
# Copyright: (c) 2012, Dag Wieers <dag@wieers.com>
# 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
DOCUMENTATION = '''
callback: mail
type: notification
short_description: Sends failure events via email
description:
- This callback will report failures via email
version_added: '2.0'
author:
- Dag Wieers (@dagwieers)
requirements:
- whitelisting in configuration
options:
mta:
description: Mail Transfer Agent, server that accepts SMTP
env:
- name: SMTPHOST
ini:
- section: callback_mail
key: smtphost
version_added: '2.5'
default: localhost
mtaport:
description: Mail Transfer Agent Port, port at which server SMTP
ini:
- section: callback_mail
key: smtpport
version_added: '2.5'
default: 25
to:
description: Mail recipient
ini:
- section: callback_mail
key: to
version_added: '2.5'
default: root
sender:
description: Mail sender
ini:
- section: callback_mail
key: sender
version_added: '2.5'
cc:
description: CC'd recipient
ini:
- section: callback_mail
key: cc
version_added: '2.5'
bcc:
description: BCC'd recipient
ini:
- section: callback_mail
key: bcc
version_added: '2.5'
note:
- "TODO: expand configuration options now that plugins can leverage Ansible's configuration"
'''
import json
import os
import re
import smtplib
from ansible.module_utils.six import string_types
from ansible.module_utils._text import to_bytes
from ansible.plugins.callback import CallbackBase
class CallbackModule(CallbackBase):
''' This Ansible callback plugin mails errors to interested parties. '''
CALLBACK_VERSION = 2.0
CALLBACK_TYPE = 'notification'
CALLBACK_NAME = 'mail'
CALLBACK_NEEDS_WHITELIST = True
def __init__(self, display=None):
super(CallbackModule, self).__init__(display=display)
self.sender = None
self.to = 'root'
self.smtphost = os.getenv('SMTPHOST', 'localhost')
self.smtpport = 25
self.cc = None
self.bcc = None
def set_options(self, task_keys=None, var_options=None, direct=None):
super(CallbackModule, self).set_options(task_keys=task_keys, var_options=var_options, direct=direct)
self.sender = self.get_option('sender')
self.to = self.get_option('to')
self.smtphost = self.get_option('mta')
self.smtpport = int(self.get_option('mtaport'))
self.cc = self.get_option('cc')
self.bcc = self.get_option('bcc')
def mail(self, subject='Ansible error mail', body=None):
if body is None:
body = subject
smtp = smtplib.SMTP(self.smtphost, port=self.smtpport)
b_sender = to_bytes(self.sender)
b_to = to_bytes(self.to)
b_cc = to_bytes(self.cc)
b_bcc = to_bytes(self.bcc)
b_subject = to_bytes(subject)
b_body = to_bytes(body)
b_content = b'From: %s\n' % b_sender
b_content += b'To: %s\n' % b_to
if self.cc:
b_content += b'Cc: %s\n' % b_cc
b_content += b'Subject: %s\n\n' % b_subject
b_content += b_body
b_addresses = b_to.split(b',')
if self.cc:
b_addresses += b_cc.split(b',')
if self.bcc:
b_addresses += b_bcc.split(b',')
for b_address in b_addresses:
smtp.sendmail(b_sender, b_address, b_content)
smtp.quit()
def subject_msg(self, multiline, failtype, linenr):
return '%s: %s' % (failtype, multiline.strip('\r\n').splitlines()[linenr])
def indent(self, multiline, indent=8):
return re.sub('^', ' ' * indent, multiline, flags=re.MULTILINE)
def body_blob(self, multiline, texttype):
''' Turn some text output in a well-indented block for sending in a mail body '''
intro = 'with the following %s:\n\n' % texttype
blob = ''
for line in multiline.strip('\r\n').splitlines():
blob += '%s\n' % line
return intro + self.indent(blob) + '\n'
def mail_result(self, result, failtype):
host = result._host.get_name()
if not self.sender:
self.sender = '"Ansible: %s" <root>' % host
# Add subject
if self.itembody:
subject = self.itemsubject
elif result._result.get('failed_when_result') is True:
subject = "Failed due to 'failed_when' condition"
elif result._result.get('msg'):
subject = self.subject_msg(result._result['msg'], failtype, 0)
elif result._result.get('stderr'):
subject = self.subject_msg(result._result['stderr'], failtype, -1)
elif result._result.get('stdout'):
subject = self.subject_msg(result._result['stdout'], failtype, -1)
elif result._result.get('exception'): # Unrelated exceptions are added to output :-/
subject = self.subject_msg(result._result['exception'], failtype, -1)
else:
subject = '%s: %s' % (failtype, result._task.name or result._task.action)
# Make playbook name visible (e.g. in Outlook/Gmail condensed view)
body = 'Playbook: %s\n' % os.path.basename(self.playbook._file_name)
if result._task.name:
body += 'Task: %s\n' % result._task.name
body += 'Module: %s\n' % result._task.action
body += 'Host: %s\n' % host
body += '\n'
# Add task information (as much as possible)
body += 'The following task failed:\n\n'
if 'invocation' in result._result:
body += self.indent('%s: %s\n' % (result._task.action, json.dumps(result._result['invocation']['module_args'], indent=4)))
elif result._task.name:
body += self.indent('%s (%s)\n' % (result._task.name, result._task.action))
else:
body += self.indent('%s\n' % result._task.action)
body += '\n'
# Add item / message
if self.itembody:
body += self.itembody
elif result._result.get('failed_when_result') is True:
body += "due to the following condition:\n\n" + self.indent('failed_when:\n- ' + '\n- '.join(result._task.failed_when)) + '\n\n'
elif result._result.get('msg'):
body += self.body_blob(result._result['msg'], 'message')
# Add stdout / stderr / exception / warnings / deprecations
if result._result.get('stdout'):
body += self.body_blob(result._result['stdout'], 'standard output')
if result._result.get('stderr'):
body += self.body_blob(result._result['stderr'], 'error output')
if result._result.get('exception'): # Unrelated exceptions are added to output :-/
body += self.body_blob(result._result['exception'], 'exception')
if result._result.get('warnings'):
for i in range(len(result._result.get('warnings'))):
body += self.body_blob(result._result['warnings'][i], 'exception %d' % (i + 1))
if result._result.get('deprecations'):
for i in range(len(result._result.get('deprecations'))):
body += self.body_blob(result._result['deprecations'][i], 'exception %d' % (i + 1))
body += 'and a complete dump of the error:\n\n'
body += self.indent('%s: %s' % (failtype, json.dumps(result._result, indent=4)))
self.mail(subject=subject, body=body)
def v2_playbook_on_start(self, playbook):
self.playbook = playbook
self.itembody = ''
def v2_runner_on_failed(self, result, ignore_errors=False):
if ignore_errors:
return
self.mail_result(result, 'Failed')
def v2_runner_on_unreachable(self, result):
self.mail_result(result, 'Unreachable')
def v2_runner_on_async_failed(self, result):
self.mail_result(result, 'Async failure')
def v2_runner_item_on_failed(self, result):
# Pass item information to task failure
self.itemsubject = result._result['msg']
self.itembody += self.body_blob(json.dumps(result._result, indent=4), "failed item dump '%(item)s'" % result._result)