系统环境
# uname -a Linux puppetserver25 2.6.32-431.el6.x86_64 #1 SMP Sun Nov 10 22:19:54 EST 2013 x86_64 x86_64 x86_64 GNU/Linux # cat /etc/issue Red Hat Enterprise Linux Server release 6.5 (Santiago) Kernel \r on an \m # python -V Python 2.6.6
所需要的rpm包
ansible-2.2.1.0-1.el6.noarch.rpm libyaml-0.1.3-4.el6_6.x86_64.rpm python-argparse-1.2.1-2.1.el6.noarch.rpm python-crypto2.6-2.6.1-2.el6.x86_64.rpm python-httplib2-0.7.7-1.el6.noarch.rpm python-jinja2-26-2.6-3.el6.noarch.rpm python-keyczar-0.71c-1.el6.noarch.rpm python-six-1.9.0-2.el6.noarch.rpm PyYAML-3.10-3.1.el6.x86_64.rpm sshpass-1.05-1.el6.x86_64.rpm
服务器如果可以出公网可以使用pip或者yum安装ansible
1.安装ansible
yum install ansible -y
2.配置ansible，优化配置，提高ansible性能【/etc/ansible/ansible.cfg】
[defaults] forks = 150 transport = paramiko #使用facter缓存，默认使用内存，支持redis gathering = implicit fact_caching_timeout = 86400 fact_caching = jsonfile fact_caching_connection = /etc/ansible/facts/cache host_key_checking = False remote_user = test deprecation_warnings = False callback_plugins = /etc/ansible/callback_plugins retry_files_enabled = False [privilege_escalation] become=True become_method=sudo become_user=root become_ask_pass=False [paramiko_connection] [ssh_connection] ssh_args = -C -o ControlMaster=auto -o ControlPersist=60s -o StrictHostKeyChecking=no pipelining = True [accelerate] [selinux] [colors]
优化ssh，提高ansible性能
$ more ~/.ssh/config Host * Compression yes ServerAliveInterval 60 ServerAliveCountMax 5 ControlMaster auto ControlPath ~/.ssh/%[email protected]%h-%p ControlPersist 4h
3.启用ansible的callback_plugins 显示ansible-playbook的执行时间
$ more callback_plugins/profile_tasks.py
import datetime
import os
import time
from ansible.plugins.callback import CallbackBase
class CallbackModule(CallbackBase):
"""
A plugin for timing tasks
"""
def __init__(self):
super(CallbackModule, self).__init__()
self.stats = {}
self.current = None
def playbook_on_task_start(self, name, is_conditional):
"""
Logs the start of each task
"""
if os.getenv("ANSIBLE_PROFILE_DISABLE") is not None:
return
if self.current is not None:
# Record the running time of the last executed task
self.stats[self.current] = time.time() - self.stats[self.current]
# Record the start time of the current task
self.current = name
self.stats[self.current] = time.time()
def playbook_on_stats(self, stats):
"""
Prints the timings
"""
if os.getenv("ANSIBLE_PROFILE_DISABLE") is not None:
return
# Record the timing of the very last task
if self.current is not None:
self.stats[self.current] = time.time() - self.stats[self.current]
# Sort the tasks by their running time
results = sorted(
self.stats.items(),
key=lambda value: value[1],
reverse=True,
)
# Just keep the top 10
results = results[:10]
# Print the timings
for name, elapsed in results:
print(
"{0:-<70}{1:->9}".format(
‘{0} ‘.format(name),
‘ {0:.02f}s‘.format(elapsed),
)
)
total_seconds = sum([x[1] for x in self.stats.items()])
print("\nPlaybook finished: {0}, {1} total tasks. {2} elapsed. \n".format(
time.asctime(),
len(self.stats.items()),
datetime.timedelta(seconds=(int(total_seconds)))
)
)
执行的效果如下
test connection --------------------------------------------------------- 1.17s Playbook finished: Wed Feb 15 13:09:06 2017, 1 total tasks. 0:00:01 elapsed.
4.编写ansible的动态inventory脚本
$ more inventory.py
#!/usr/bin/env python
import argparse
import sys
try:
import json
except ImportError:
import simplejson as json
def RFile():
with open(‘hostlist.txt‘, ‘r+‘) as f:
result=[]
for line in f.readlines():
host = line.strip().split()
if host:
result.append(host)
return result
host_list = RFile()
def groupList():
group_list = []
for host in host_list:
group_list.append(host[1])
print (json.dumps({"all":group_list},indent=4))
def hostList(key):
host_dict = {}
for host in host_list:
host_dict[host[1]] = {"ansible_ssh_host": host[1],"ansible_ssh_port":9999, "ansible_ssh_user":"test","ansible_ssh_pass":
"test","hostname":host[0]}
print (json.dumps(host_dict[key], indent=4))
if len(sys.argv) == 2 and (sys.argv[1] == ‘--list‘):
groupList()
elif len(sys.argv) == 3 and (sys.argv[1] == ‘--host‘):
hostList(sys.argv[2])
else:
print "Usage: %s --list or --host <hostname>" % sys.argv[0]
sys.exit(1)
主机列表如下 more hostlist.txt backup01.cn 10.44.245.85
测试playbook：test.yml
$ more test.yml - hosts: all remote_user: test gather_facts: no become: yes become_method: sudo tasks: - name: test connection ping:
执行结果如下：
$ ansible-playbook -i inventory.py test.yml PLAY [all] ********************************************************************* TASK [test connection] ********************************************************* ok: [10.44.245.85] PLAY RECAP ********************************************************************* 10.44.245.85 : ok=1 changed=0 unreachable=0 failed=0 test connection --------------------------------------------------------- 1.17s Playbook finished: Wed Feb 15 13:20:09 2017, 1 total tasks. 0:00:01 elapsed.
时间： 2024-12-17 21:19:02