Ansible-playbook是日常应用中使用频率最高的工具,其工作机制是通过读取预先编写好的playbook文件实现批量管理,要实现的功能和命令ansible是一样的,可以理解为按一定条件组成的ansible任务集。
ansible-playbook命令后跟YML格式的playbook文件,执行事先编排好的任务集,命令使用方式如下:
ansible-playbook playbook.yml
具体示例如下:
//执行gw.yml这个playbook中定义的所有任务集
ansible-playbook gw.yml
Playbook具有编写简单、可定制性高、灵活方便同时可固化日常所有操作的特点,运维熟练掌握。
[root@localhost~]# ansible-playbook -h
Usage:ansible-playbook playbook.yml
Options:
-k, --ask-pass ask for SSH password
--ask-su-pass ask for su password
-K, --ask-sudo-pass ask for sudo password
--ask-vault-pass ask for vault password
-C, --check don't make any changes; instead, tryto predict some
of the changes that mayoccur
-c CONNECTION, --connection=CONNECTION
connection type to use(default=smart)
-D, --diff when changing (small) files and templates,show the
differences in thosefiles; works great with --check
-e EXTRA_VARS, --extra-vars=EXTRA_VARS
set additionalvariables as key=value or YAML/JSON
--force-handlers run handlers even if a task fails
-f FORKS, --forks=FORKS
specify number ofparallel processes to use
(default=5)
-h, --help show this help message and exit
-i INVENTORY, --inventory-file=INVENTORY
specify inventory hostfile
(default=/etc/ansible/hosts)
-l SUBSET, --limit=SUBSET
further limit selectedhosts to an additional pattern
--list-hosts outputs a list of matching hosts; does notexecute
anything else
--list-tasks list all tasks that would be executed
-M MODULE_PATH, --module-path=MODULE_PATH
specify path(s) tomodule library
(default=/usr/share/ansible/)
--private-key=PRIVATE_KEY_FILE
use this file toauthenticate the connection
--skip-tags=SKIP_TAGS
only run plays andtasks whose tags do not match these
values
--start-at-task=START_AT
start the playbook atthe task matching this name
--step one-step-at-a-time: confirmeach task before running
-S, --su run operations with su
-R SU_USER, --su-user=SU_USER
run operations with suas this user (default=root)
-s, --sudo run operations with sudo (nopasswd)
-U SUDO_USER, --sudo-user=SUDO_USER
desired sudo user(default=root)
--syntax-check perform a syntax check on the playbook,but do not
execute it
-t TAGS, --tags=TAGS only run plays and tasks tagged with thesevalues
-T TIMEOUT, --timeout=TIMEOUT
override the SSHtimeout in seconds (default=10)
-u REMOTE_USER, --user=REMOTE_USER
connect as this user(default=root)
--vault-password-file=VAULT_PASSWORD_FILE
vault password file
-v, --verbose verbose mode (-vvv for more, -vvvv toenable
connection debugging)
--version show program's version number andexit