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log_ara.py
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log_ara.py
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# Copyright (c) 2017 Red Hat, Inc.
#
# This file is part of ARA: Ansible Run Analysis.
#
# ARA 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.
#
# ARA 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 ARA. If not, see <http://www.gnu.org/licenses/>.
from __future__ import (absolute_import, division, print_function)
import flask
import itertools
import logging
import os
from ansible import __version__ as ansible_version
from ansible.plugins.callback import CallbackBase
from ara import models
from ara.models import db
from ara.webapp import create_app
from datetime import datetime
from distutils.version import LooseVersion
from oslo_serialization import jsonutils
# To retrieve Ansible CLI options
try:
from __main__ import cli
except ImportError:
cli = None
LOG = logging.getLogger('ara.callback')
app = create_app()
class IncludeResult(object):
"""
This is used by the v2_playbook_on_include callback to synthesize a task
result for calling log_task.
"""
def __init__(self, host, path):
self._host = host
self._result = {'included_file': path}
class CallbackModule(CallbackBase):
"""
Saves data from an Ansible run into a database
"""
CALLBACK_VERSION = 2.0
CALLBACK_TYPE = 'notification'
CALLBACK_NAME = 'ara'
def __init__(self):
super(CallbackModule, self).__init__()
if not flask.current_app:
ctx = app.app_context()
ctx.push()
self.taskresult = None
self.task = None
self.play = None
self.playbook = None
self.stats = None
self.loop_items = []
self.play_counter = itertools.count()
self.task_counter = itertools.count()
if cli:
self._options = cli.options
else:
self._options = None
def get_or_create_host(self, hostname):
try:
host = (models.Host.query
.filter_by(name=hostname)
.filter_by(playbook_id=self.playbook.id)
.one())
except models.NoResultFound:
host = models.Host(name=hostname, playbook=self.playbook)
db.session.add(host)
db.session.commit()
return host
def get_or_create_file(self, path):
try:
if self.playbook.id:
file_ = (models.File.query
.filter_by(path=path)
.filter_by(playbook_id=self.playbook.id)
.one())
return file_
except models.NoResultFound:
pass
file_ = models.File(path=path, playbook=self.playbook)
db.session.add(file_)
db.session.commit()
try:
with open(path, 'r') as fd:
data = fd.read()
sha1 = models.content_sha1(data)
content = models.FileContent.query.get(sha1)
if content is None:
content = models.FileContent(content=data)
file_.content = content
except IOError:
LOG.warn('failed to open %s for reading', path)
return file_
def log_task(self, result, status, **kwargs):
"""
'log_task' is called when an individual task instance on a single
host completes. It is responsible for logging a single
'TaskResult' record to the database.
"""
LOG.debug('logging task result for task %s (%s), host %s',
self.task.name, self.task.id, result._host.get_name())
# An include_role task might end up putting an IncludeRole object
# inside the result object which we don't need
# https://github.com/ansible/ansible/issues/30385
if 'include_role' in result._result:
del result._result['include_role']
result.task_start = self.task.time_start
result.task_end = datetime.now()
host = self.get_or_create_host(result._host.get_name())
# Use Ansible's CallbackBase._dump_results in order to strip internal
# keys, respect no_log directive, etc.
if self.loop_items:
# NOTE (dmsimard): There is a known issue in which Ansible can send
# callback hooks out of order and "exit" the task before all items
# have returned, this can cause one of the items to be missing
# from the task result in ARA.
# https://github.com/ansible/ansible/issues/24207
results = [self._dump_results(result._result)]
for item in self.loop_items:
results.append(self._dump_results(item._result))
results = jsonutils.loads(jsonutils.dumps(results))
else:
results = jsonutils.loads(self._dump_results(result._result))
self.taskresult = models.TaskResult(
task=self.task,
host=host,
time_start=result.task_start,
time_end=result.task_end,
result=jsonutils.dumps(results),
status=status,
changed=result._result.get('changed', False),
failed=result._result.get('failed', False),
skipped=result._result.get('skipped', False),
unreachable=result._result.get('unreachable', False),
ignore_errors=kwargs.get('ignore_errors', False),
)
db.session.add(self.taskresult)
db.session.commit()
if self.task.action == 'setup' and 'ansible_facts' in result._result:
values = jsonutils.dumps(result._result['ansible_facts'])
facts = models.HostFacts(values=values)
host.facts = facts
db.session.add(facts)
db.session.commit()
def log_stats(self, stats):
"""
Logs playbook statistics to the database.
"""
LOG.debug('logging stats')
hosts = sorted(stats.processed.keys())
for hostname in hosts:
host = self.get_or_create_host(hostname)
host_stats = stats.summarize(hostname)
db.session.add(models.Stats(
playbook=self.playbook,
host=host,
changed=host_stats['changed'],
unreachable=host_stats['unreachable'],
failed=host_stats['failures'],
ok=host_stats['ok'],
skipped=host_stats['skipped']
))
db.session.commit()
def close_task(self):
"""
Marks the completion time of the currently active task.
"""
if self.task is not None:
LOG.debug('closing task %s (%s)',
self.task.name,
self.task.id)
self.task.stop()
db.session.add(self.task)
db.session.commit()
self.task = None
self.loop_items = []
def close_play(self):
"""
Marks the completion time of the currently active play.
"""
if self.play is not None:
LOG.debug('closing play %s (%s)', self.play.name, self.play.id)
self.play.stop()
db.session.add(self.play)
db.session.commit()
self.play = None
def close_playbook(self):
"""
Marks the completion time of the currently active playbook.
"""
if self.playbook is not None:
LOG.debug('closing playbook %s', self.playbook.path)
self.playbook.stop()
self.playbook.complete = True
db.session.add(self.playbook)
db.session.commit()
def v2_runner_item_on_ok(self, result):
self.loop_items.append(result)
def v2_runner_item_on_failed(self, result):
self.loop_items.append(result)
def v2_runner_item_on_skipped(self, result):
self.loop_items.append(result)
def v2_runner_retry(self, result):
self.loop_items.append(result)
def v2_runner_on_ok(self, result, **kwargs):
self.log_task(result, 'ok', **kwargs)
def v2_runner_on_unreachable(self, result, **kwargs):
self.log_task(result, 'unreachable', **kwargs)
def v2_runner_on_failed(self, result, **kwargs):
self.log_task(result, 'failed', **kwargs)
def v2_runner_on_skipped(self, result, **kwargs):
self.log_task(result, 'skipped', **kwargs)
def v2_playbook_on_task_start(self, task, is_conditional,
is_handler=False):
self.close_task()
LOG.debug('starting task %s (action %s)',
task.name, task.action)
pathspec = task.get_path()
if pathspec:
path, lineno = pathspec.split(':', 1)
lineno = int(lineno)
file_ = self.get_or_create_file(path)
else:
path = self.playbook.path
lineno = 1
file_ = self.get_or_create_file(self.playbook.path)
self.task = models.Task(
name=task.get_name(),
sortkey=next(self.task_counter),
action=task.action,
play=self.play,
playbook=self.playbook,
tags=jsonutils.dumps(task._attributes['tags']),
file=file_,
lineno=lineno,
is_handler=is_handler)
self.task.start()
db.session.add(self.task)
db.session.commit()
def v2_playbook_on_handler_task_start(self, task):
self.v2_playbook_on_task_start(task, False, is_handler=True)
def v2_playbook_on_start(self, playbook):
path = os.path.abspath(playbook._file_name)
if self._options is not None:
options = self._options.__dict__.copy()
else:
options = {}
# Potentially sanitize some user-specified keys
for parameter in app.config['ARA_IGNORE_PARAMETERS']:
if parameter in options:
msg = "Parameter not saved by ARA due to configuration"
options[parameter] = msg
LOG.debug('starting playbook %s', path)
self.playbook = models.Playbook(
ansible_version=ansible_version,
path=path,
options=options
)
self.playbook.start()
db.session.add(self.playbook)
db.session.commit()
file_ = self.get_or_create_file(path)
file_.is_playbook = True
# We need to persist the playbook id so it can be used by the modules
data = {
'playbook': {
'id': self.playbook.id
}
}
tmpfile = os.path.join(app.config['ARA_TMP_DIR'], 'ara.json')
with open(tmpfile, 'w') as file:
file.write(jsonutils.dumps(data))
def v2_playbook_on_play_start(self, play):
self.close_task()
self.close_play()
LOG.debug('starting play %s', play.name)
if self.play is not None:
self.play.stop()
self.play = models.Play(
name=play.name,
sortkey=next(self.play_counter),
playbook=self.playbook
)
self.play.start()
db.session.add(self.play)
db.session.commit()
def v2_playbook_on_stats(self, stats):
self.log_stats(stats)
self.close_task()
self.close_play()
self.close_playbook()
LOG.debug('closing database')
db.session.close()
def v2_playbook_on_include(self, included_file):
# Before Ansible 2.2.0.0, "include" tasks were not sent to the
# callbacks as "native" tasks.
if LooseVersion(ansible_version) < LooseVersion('2.2.0'):
for host in included_file._hosts:
LOG.debug('log include file for host %s', host)
self.log_task(IncludeResult(host, included_file._filename),
'ok')