mirror of
https://github.com/ansible-collections/community.general.git
synced 2024-09-14 20:13:21 +02:00
123c7efe5e
* Move licenses to LICENSES/, run add-license.py, add LICENSES/MIT.txt. * Replace 'Copyright:' with 'Copyright' sed -i 's|Copyright:\(.*\)|Copyright\1|' $(rg -l 'Copyright:') Co-authored-by: Maxwell G <gotmax@e.email>
118 lines
4.1 KiB
Python
118 lines
4.1 KiB
Python
# -*- coding: utf-8 -*-
|
|
# (c) 2018 Matt Martz <matt@sivel.net>
|
|
# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
|
|
# SPDX-License-Identifier: GPL-3.0-or-later
|
|
|
|
# Make coding more python3-ish
|
|
from __future__ import (absolute_import, division, print_function)
|
|
__metaclass__ = type
|
|
|
|
DOCUMENTATION = '''
|
|
author: Unknown (!UNKNOWN)
|
|
name: cgroup_memory_recap
|
|
type: aggregate
|
|
requirements:
|
|
- whitelist in configuration
|
|
- cgroups
|
|
short_description: Profiles maximum memory usage of tasks and full execution using cgroups
|
|
description:
|
|
- This is an ansible callback plugin that profiles maximum memory usage of ansible and individual tasks, and displays a recap at the end using cgroups
|
|
notes:
|
|
- Requires ansible to be run from within a cgroup, such as with C(cgexec -g memory:ansible_profile ansible-playbook ...)
|
|
- This cgroup should only be used by ansible to get accurate results
|
|
- To create the cgroup, first use a command such as C(sudo cgcreate -a ec2-user:ec2-user -t ec2-user:ec2-user -g memory:ansible_profile)
|
|
options:
|
|
max_mem_file:
|
|
required: True
|
|
description: Path to cgroups C(memory.max_usage_in_bytes) file. Example C(/sys/fs/cgroup/memory/ansible_profile/memory.max_usage_in_bytes)
|
|
env:
|
|
- name: CGROUP_MAX_MEM_FILE
|
|
ini:
|
|
- section: callback_cgroupmemrecap
|
|
key: max_mem_file
|
|
cur_mem_file:
|
|
required: True
|
|
description: Path to C(memory.usage_in_bytes) file. Example C(/sys/fs/cgroup/memory/ansible_profile/memory.usage_in_bytes)
|
|
env:
|
|
- name: CGROUP_CUR_MEM_FILE
|
|
ini:
|
|
- section: callback_cgroupmemrecap
|
|
key: cur_mem_file
|
|
'''
|
|
|
|
import time
|
|
import threading
|
|
|
|
from ansible.plugins.callback import CallbackBase
|
|
|
|
|
|
class MemProf(threading.Thread):
|
|
"""Python thread for recording memory usage"""
|
|
def __init__(self, path, obj=None):
|
|
threading.Thread.__init__(self)
|
|
self.obj = obj
|
|
self.path = path
|
|
self.results = []
|
|
self.running = True
|
|
|
|
def run(self):
|
|
while self.running:
|
|
with open(self.path) as f:
|
|
val = f.read()
|
|
self.results.append(int(val.strip()) / 1024 / 1024)
|
|
time.sleep(0.001)
|
|
|
|
|
|
class CallbackModule(CallbackBase):
|
|
CALLBACK_VERSION = 2.0
|
|
CALLBACK_TYPE = 'aggregate'
|
|
CALLBACK_NAME = 'community.general.cgroup_memory_recap'
|
|
CALLBACK_NEEDS_WHITELIST = True
|
|
|
|
def __init__(self, display=None):
|
|
super(CallbackModule, self).__init__(display)
|
|
|
|
self._task_memprof = None
|
|
|
|
self.task_results = []
|
|
|
|
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.cgroup_max_file = self.get_option('max_mem_file')
|
|
self.cgroup_current_file = self.get_option('cur_mem_file')
|
|
|
|
with open(self.cgroup_max_file, 'w+') as f:
|
|
f.write('0')
|
|
|
|
def _profile_memory(self, obj=None):
|
|
prev_task = None
|
|
results = None
|
|
try:
|
|
self._task_memprof.running = False
|
|
results = self._task_memprof.results
|
|
prev_task = self._task_memprof.obj
|
|
except AttributeError:
|
|
pass
|
|
|
|
if obj is not None:
|
|
self._task_memprof = MemProf(self.cgroup_current_file, obj=obj)
|
|
self._task_memprof.start()
|
|
|
|
if results is not None:
|
|
self.task_results.append((prev_task, max(results)))
|
|
|
|
def v2_playbook_on_task_start(self, task, is_conditional):
|
|
self._profile_memory(task)
|
|
|
|
def v2_playbook_on_stats(self, stats):
|
|
self._profile_memory()
|
|
|
|
with open(self.cgroup_max_file) as f:
|
|
max_results = int(f.read().strip()) / 1024 / 1024
|
|
|
|
self._display.banner('CGROUP MEMORY RECAP')
|
|
self._display.display('Execution Maximum: %0.2fMB\n\n' % max_results)
|
|
|
|
for task, memory in self.task_results:
|
|
self._display.display('%s (%s): %0.2fMB' % (task.get_name(), task._uuid, memory))
|