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community.general/plugins/callback/counter_enabled.py
patchback[bot] ebda14ba41
Enable counter_enabled.py to support batch mode (#3709) (#3731) 
* Enable counter_enabled.py to support serial mode

Enable counter_enabled.py to support batch playbook executions using the serial tag in plays. Currently, the host counter gets reset at the beginning of every task. However, during batch executions we want it to keep track of the previous batch executions and print the host counter based on the previous runs. This proposal keeps track of how many servers have been updated in previous batches and starts the host counter at that tracked value.

```
- hosts: allthethings
  gather_facts: no
  serial:
    - 3
    - 15%
    - 20%
    - 35%
    - 55%
    - 90%
    - 100%
  tasks:
    - name: Ping Hello!
      ping:
        data: "Hello!!!!"
```

* Reset task counter on play start

Reset task counter on play start for batch mode playbook executions.

* Add changelog fragment

* change changelog fragment after feedback

Co-authored-by: Felix Fontein <felix@fontein.de>

Co-authored-by: Felix Fontein <felix@fontein.de>
(cherry picked from commit f5b4dcc564)

Co-authored-by: Nabheet Sandhu <nabheet@users.noreply.github.com>
2021-11-15 22:13:12 +01:00

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# -*- coding: utf-8 -*-
# (c) 2018, Ivan Aragones Muniesa <ivan.aragones.muniesa@gmail.com>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
'''
Counter enabled Ansible callback plugin (See DOCUMENTATION for more information)
'''
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
DOCUMENTATION = '''
author: Unknown (!UNKNOWN)
name: counter_enabled
type: stdout
short_description: adds counters to the output items (tasks and hosts/task)
description:
- Use this callback when you need a kind of progress bar on a large environments.
- You will know how many tasks has the playbook to run, and which one is actually running.
- You will know how many hosts may run a task, and which of them is actually running.
extends_documentation_fragment:
- default_callback
requirements:
- set as stdout callback in ansible.cfg (stdout_callback = counter_enabled)
'''
from ansible import constants as C
from ansible.plugins.callback import CallbackBase
from ansible.utils.color import colorize, hostcolor
from ansible.template import Templar
from ansible.playbook.task_include import TaskInclude
class CallbackModule(CallbackBase):
'''
This is the default callback interface, which simply prints messages
to stdout when new callback events are received.
'''
CALLBACK_VERSION = 2.0
CALLBACK_TYPE = 'stdout'
CALLBACK_NAME = 'community.general.counter_enabled'
_task_counter = 1
_task_total = 0
_host_counter = 1
_host_total = 0
_current_batch_total = 0
_previous_batch_total = 0
def __init__(self):
super(CallbackModule, self).__init__()
self._playbook = ""
self._play = ""
def _all_vars(self, host=None, task=None):
# host and task need to be specified in case 'magic variables' (host vars, group vars, etc)
# need to be loaded as well
return self._play.get_variable_manager().get_vars(
play=self._play,
host=host,
task=task
)
def v2_playbook_on_start(self, playbook):
self._playbook = playbook
def v2_playbook_on_play_start(self, play):
name = play.get_name().strip()
if not name:
msg = u"play"
else:
msg = u"PLAY [%s]" % name
self._play = play
self._display.banner(msg)
self._play = play
self._previous_batch_total = self._current_batch_total
self._current_batch_total = self._previous_batch_total + len(self._all_vars()['vars']['ansible_play_batch'])
self._host_total = len(self._all_vars()['vars']['ansible_play_hosts_all'])
self._task_total = len(self._play.get_tasks()[0])
self._task_counter = 1
def v2_playbook_on_stats(self, stats):
self._display.banner("PLAY RECAP")
hosts = sorted(stats.processed.keys())
for host in hosts:
stat = stats.summarize(host)
self._display.display(u"%s : %s %s %s %s %s %s" % (
hostcolor(host, stat),
colorize(u'ok', stat['ok'], C.COLOR_OK),
colorize(u'changed', stat['changed'], C.COLOR_CHANGED),
colorize(u'unreachable', stat['unreachable'], C.COLOR_UNREACHABLE),
colorize(u'failed', stat['failures'], C.COLOR_ERROR),
colorize(u'rescued', stat['rescued'], C.COLOR_OK),
colorize(u'ignored', stat['ignored'], C.COLOR_WARN)),
screen_only=True
)
self._display.display(u"%s : %s %s %s %s %s %s" % (
hostcolor(host, stat, False),
colorize(u'ok', stat['ok'], None),
colorize(u'changed', stat['changed'], None),
colorize(u'unreachable', stat['unreachable'], None),
colorize(u'failed', stat['failures'], None),
colorize(u'rescued', stat['rescued'], None),
colorize(u'ignored', stat['ignored'], None)),
log_only=True
)
self._display.display("", screen_only=True)
# print custom stats
if self._plugin_options.get('show_custom_stats', C.SHOW_CUSTOM_STATS) and stats.custom:
# fallback on constants for inherited plugins missing docs
self._display.banner("CUSTOM STATS: ")
# per host
# TODO: come up with 'pretty format'
for k in sorted(stats.custom.keys()):
if k == '_run':
continue
self._display.display('\t%s: %s' % (k, self._dump_results(stats.custom[k], indent=1).replace('\n', '')))
# print per run custom stats
if '_run' in stats.custom:
self._display.display("", screen_only=True)
self._display.display('\tRUN: %s' % self._dump_results(stats.custom['_run'], indent=1).replace('\n', ''))
self._display.display("", screen_only=True)
def v2_playbook_on_task_start(self, task, is_conditional):
args = ''
# args can be specified as no_log in several places: in the task or in
# the argument spec. We can check whether the task is no_log but the
# argument spec can't be because that is only run on the target
# machine and we haven't run it there yet at this time.
#
# So we give people a config option to affect display of the args so
# that they can secure this if they feel that their stdout is insecure
# (shoulder surfing, logging stdout straight to a file, etc).
if not task.no_log and C.DISPLAY_ARGS_TO_STDOUT:
args = ', '.join(('%s=%s' % a for a in task.args.items()))
args = ' %s' % args
self._display.banner("TASK %d/%d [%s%s]" % (self._task_counter, self._task_total, task.get_name().strip(), args))
if self._display.verbosity >= 2:
path = task.get_path()
if path:
self._display.display("task path: %s" % path, color=C.COLOR_DEBUG)
self._host_counter = self._previous_batch_total
self._task_counter += 1
def v2_runner_on_ok(self, result):
self._host_counter += 1
delegated_vars = result._result.get('_ansible_delegated_vars', None)
if self._play.strategy == 'free' and self._last_task_banner != result._task._uuid:
self._print_task_banner(result._task)
if isinstance(result._task, TaskInclude):
return
elif result._result.get('changed', False):
if delegated_vars:
msg = "changed: %d/%d [%s -> %s]" % (self._host_counter, self._host_total, result._host.get_name(), delegated_vars['ansible_host'])
else:
msg = "changed: %d/%d [%s]" % (self._host_counter, self._host_total, result._host.get_name())
color = C.COLOR_CHANGED
else:
if delegated_vars:
msg = "ok: %d/%d [%s -> %s]" % (self._host_counter, self._host_total, result._host.get_name(), delegated_vars['ansible_host'])
else:
msg = "ok: %d/%d [%s]" % (self._host_counter, self._host_total, result._host.get_name())
color = C.COLOR_OK
self._handle_warnings(result._result)
if result._task.loop and 'results' in result._result:
self._process_items(result)
else:
self._clean_results(result._result, result._task.action)
if self._run_is_verbose(result):
msg += " => %s" % (self._dump_results(result._result),)
self._display.display(msg, color=color)
def v2_runner_on_failed(self, result, ignore_errors=False):
self._host_counter += 1
delegated_vars = result._result.get('_ansible_delegated_vars', None)
self._clean_results(result._result, result._task.action)
if self._play.strategy == 'free' and self._last_task_banner != result._task._uuid:
self._print_task_banner(result._task)
self._handle_exception(result._result)
self._handle_warnings(result._result)
if result._task.loop and 'results' in result._result:
self._process_items(result)
else:
if delegated_vars:
self._display.display("fatal: %d/%d [%s -> %s]: FAILED! => %s" % (self._host_counter, self._host_total,
result._host.get_name(), delegated_vars['ansible_host'],
self._dump_results(result._result)),
color=C.COLOR_ERROR)
else:
self._display.display("fatal: %d/%d [%s]: FAILED! => %s" % (self._host_counter, self._host_total,
result._host.get_name(), self._dump_results(result._result)),
color=C.COLOR_ERROR)
if ignore_errors:
self._display.display("...ignoring", color=C.COLOR_SKIP)
def v2_runner_on_skipped(self, result):
self._host_counter += 1
if self._plugin_options.get('show_skipped_hosts', C.DISPLAY_SKIPPED_HOSTS): # fallback on constants for inherited plugins missing docs
self._clean_results(result._result, result._task.action)
if self._play.strategy == 'free' and self._last_task_banner != result._task._uuid:
self._print_task_banner(result._task)
if result._task.loop and 'results' in result._result:
self._process_items(result)
else:
msg = "skipping: %d/%d [%s]" % (self._host_counter, self._host_total, result._host.get_name())
if self._run_is_verbose(result):
msg += " => %s" % self._dump_results(result._result)
self._display.display(msg, color=C.COLOR_SKIP)
def v2_runner_on_unreachable(self, result):
self._host_counter += 1
if self._play.strategy == 'free' and self._last_task_banner != result._task._uuid:
self._print_task_banner(result._task)
delegated_vars = result._result.get('_ansible_delegated_vars', None)
if delegated_vars:
self._display.display("fatal: %d/%d [%s -> %s]: UNREACHABLE! => %s" % (self._host_counter, self._host_total,
result._host.get_name(), delegated_vars['ansible_host'],
self._dump_results(result._result)),
color=C.COLOR_UNREACHABLE)
else:
self._display.display("fatal: %d/%d [%s]: UNREACHABLE! => %s" % (self._host_counter, self._host_total,
result._host.get_name(), self._dump_results(result._result)),
color=C.COLOR_UNREACHABLE)
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