SSH批量管理项目如何一键一秒钟完成:一秒完成。
1.ssh-keygen非交互式创建秘钥对:
具体命令:ssh-keygen -f ~/.ssh/id_rsa -P '' -q
参数讲解:
ssh-keygen:密钥对创建工具
[-P old_passphrase] 密码
[-f output_keyfile] 输出的秘钥文件
[-q] 不输出信息
[-t dsa ] 指定秘钥类型。
2.ssh-copy-id不需要提示yes/no分发秘钥
具体命令:ssh-copy-id -f -i ~/.ssh/id_rsa.pub -o StrictHostKeyChecking=no 172.16.1.8
参数讲解:
ssh-copy-id -f -i ~/.ssh/id_rsa.pub -o StrictHostKeyChecking=no root172.16.1.8
ssh-copy-id [-f] [-i [identity_file]] [-p port] [[-o
说明:
-f: force mode 强制
[-i [identity_file]] 指定秘钥文件
[[-o
3.sshpass工具:指定密码非人工交互分发秘钥
sshpass -p123456 ssh-copy-id -f -i ~/.ssh/id_rsa.pub "-o StrictHostKeyChecking=no" 172.16.1.7
[root@web02 ~]# sshpass -help
Usage: sshpass [-f|-d|-p|-e] [-hV] command parameters
sshpass -p123456 ssh-copy-id -f -i ~/.ssh/id_rsa.pub "-o StrictHostKeyChecking=no" 172.16.1.7
sshpass [-f|-d|-p|-e] [-hV] command parameters
参数讲解:
-p password Provide password as argument (security unwise) #指定用户密码操作
4.一键配置实践
把web02作为分发服务器:
web02(8)-->m01(61)
web02(8)-->web01(7)
ssh-keygen -f ~/.ssh/id_rsa -P '' -q
ssh-copy-id -f -i ~/.ssh/id_rsa.pub "-o StrictHostKeyChecking=no" 172.16.1.7
sshpass -p123456 ssh-copy-id -f -i ~/.ssh/id_rsa.pub "-o StrictHostKeyChecking=no" 172.16.1.7
#!/bin/bash
#yum install sshpass -y
ssh-keygen -f ~/.ssh/id_rsa -P '' -q
for ip in 7 61
do
sshpass -p123456 ssh-copy-id -f -i ~/.ssh/id_rsa.pub "-o StrictHostKeyChecking=no" 172.16.1.$ip
done
#test
ssh 172.16.1.7 "ifconfig eth0"
ssh 172.16.1.61 "ifconfig eth0"
老男孩Linux58期-ansible自动化管理实践
0.运维发展历史
开发给运维打工:
人肉运维(1万-2万)---自动化(使用自动5000工资)--->平台化(5000元工资)---
开发自动化(2-3万) 开发平台的(2-4万)(Python/Shell)
--->可视化运维(简单化、表现价值)----->智能化(人也不要了)(aiops)
开发可视化(2-5万)(Python/Shell) 开发智能化的产品(机器人)(大数据+人工智能) 机器学习、深度学习。
834万,本科400万
1.ansible介绍
ssh秘钥认证+脚本批量管理,特点:简单、实用,
但是看起来比较LOW,需要人工写脚本,类似实时复制的inotify工具。
2013以前这种方式很普遍。
MySQL高可用 MHA集群,要求所有机器互相秘钥认证。
大数据集群也需要。
2.批量管理工具历史
SSH+脚本 CFEngine、Puppet、saltstack 、ansible
08年以前 07-08年 10-13年 14-17(python开发) 16-(python开发)
sina网
3.为什么用ansible?
简单、方便、容易学习、功能同样强大。
ansible有配置文件,可以多线程直接实现。不需要写脚本,类似实时复制的sersync。
4.什么是ansible?
Ansible是一个用来远程管理服务器的工具软件。
Ansible是一个用来批量部署远程主机上服务的工具。这里“远程主机(Remote Host)”是指任
何可以通过SSH登录的主机,所以它既可以是远程虚拟机或物理机,也可以是本地主机。
Ansible通过SSH协议实现管理节点与远程节点之间的通信。理论上来说,只要能通过SSH登录到
远程主机来完成的操作,都可以通过Ansible实现批量自动化操作。
涉及管理操作:复制文件、安装服务、服务启动停止管理、配置管理等等。
5.为什么要用批量管理工具运维?
提高效率,百度几万台服务器,阿里几十万台服务器。
如何省钱?
SSD+SATA 热点存储 15 15 7
6.Ansible特点
Ansible基于Python语言实现,由Paramiko和PyYAML两个关键模块构建。
Shell、Python是Linux运维学员必会的两门语言。
1)安装部署过程特别简单,学习曲线很平坦。
2)不需要单独安装客户端,只是利用现有的SSHD服务(协议)即可。
3)不需要服务端(no servers)。
4)ansible playbook,采用yaml配置,提前编排自动化任务。
5)ansible功能模块较多,对于自动化的场景支持丰富。
官方:http://docs.ansible.com
7.Ansible架构介绍(见图说明)
1、连接插件connectior plugins用于连接主机 用来连接被管理端
2、核心模块 core modules 连接主机实现操作, 它依赖于具体的模块来做具体的事情
3、自定义模块 custom modules,根据自己的需求编写具体的模块
4、插件 plugins,完成模块功能的补充
5、剧本 playbooks,ansible的配置文件,将多个任务定义在剧本中,由ansible自动执行
6、主机清单 inventor,定义ansible需要操作主机的范围
最重要的一点是 ansible是模块化的 它所有的操作都依赖于模块
(懂Python可以二次开发)
超过13K:
54期郑赫杨 15K 18K 20K
1、自我要求特别高(AQ特别高)。
2、学习特别努力(周六日自习)
3、媳妇硕士,北京市公务员。
4、入学1个月左右 单独学了周末MySQL班,好几个一起学的。
5、中专 99年 7个offer,中下等学生。
建议:期中架构以后学一门周末课程
网络安全课程、python自动化课程、周末MySQL班、GO语言
8.ansible实践环境准备
61(m01)====>31(nfs01)
61(m01) ====>41(backup)
9.安装ansible
m01管理机:
yum install epel-release -y
yum install ansible -y
#如果有libselinux-python就不执行下面的命令了。
#rpm -qa |grep libselinux-python
#yum install libselinux-python -y
其他所有机器:
#rpm -qa |grep libselinux-python
#yum install libselinux-python -y
10.主机列表配置
ssh列表实现方法:
for n in 7 8
do
echo 172.16.1.$n
done
/etc/ansible/hosts主机资产清单文件,用于定义被管理主机的认证信息,
例如ssh登录用户名、密码以及key相关信息。如何配置Inventory文件
1.主机支持主机名通配以及正则表达式,例如web[1:3].oldboy.com代表三台主机
2.主机支持基于非标准的ssh端口,例如web1.oldboyedu.com:6666
3.主机支持指定变量,可对个别主机的特殊配置,如登陆用户\密码
4.主机组支持指定变量[group_name:vars],同时支持嵌套组[game:children]
实践:
cp /etc/ansible/hosts{,.ori}
cat >/etc/ansible/hosts< [oldboy] 172.16.1.31 172.16.1.41 [oldgirl] 172.16.1.31 172.16.1.41 172.16.1.51 EOF cat /etc/ansible/hosts /etc/ansible/ansible.cfg #ansible的配置文件 11.小试牛刀 直接执行如下命令或报错 ansible oldboy -m command -a "free -m" 基于SSH秘钥认证的前提下: 如果没有做SSH秘钥认证,可以把用户名密码写到 /etc/ansible/hosts [oldboy_pass] 172.16.1.7 ansible_ssh_user=root ansible_ssh_pass=123456 172.16.1.8 ansible_ssh_user=root ansible_ssh_pass=123456 ansible oldboy -m command -a "free -m" 要想成功,先解决yes/no的问题。 1、ssh连接一遍。 2、ssh -o 参数 上述命令就是sshpass的封装 ========================================== ansible关闭ssh首次连接时yes/no提示 使用ssh连接时,可以使用-o参数将StrictHostKeyChecking设置为no, 避免使用ssh连接时避免首次连接时让输入yes/no部分的提示。 方法1:修改 /etc/ansible/ansible.cfg中的374行 369 [ssh_connection] 370 371 # ssh arguments to use 372 # Leaving off ControlPersist will result in poor performance, so use 373 # paramiko on older platforms rather than removing it, -C controls compression use 374 #ssh_args = -C -o ControlMaster=auto -o ControlPersist=60s 374行改为: ssh_args = -o ControlMaster=auto -o ControlPersist=60s -o StrictHostKeyChecking=no 方法2:修改 /etc/ansible/ansible.cfg中的71行 70 # uncomment this to disable SSH key host checking 71 #host_key_checking = False 71行的注释取消:host_key_checking = False ========================================== [root@m01 /server/scripts]# > ~/.ssh/known_hosts [root@m01 /server/scripts]# ssh 172.16.1.31 The authenticity of host '172.16.1.31 (172.16.1.31)' can't be established. ECDSA key fingerprint is SHA256:qZSBkrmOv7xO/63qOU1uLXkPyNVHdkqvrNAcAmXqNEk. ECDSA key fingerprint is MD5:23:d0:cb:a9:f4:7c:0b:eb:2d:07:00:e1:a3:12:d8:33. Are you sure you want to continue connecting (yes/no)? ^C [root@m01 /server/scripts]# ansible oldboy -m command -a "free -m" 172.16.1.31 | CHANGED | rc=0 >> total used free shared buff/cache available Mem: 972 88 592 13 291 708 Swap: 767 0 767 172.16.1.41 | CHANGED | rc=0 >> total used free shared buff/cache available Mem: 972 89 572 13 310 706 Swap: 767 0 767 目标:ansible是不是需要免秘钥认证(ssh免秘钥认证)? yes [root@m01 ~]# cat /etc/ansible/hosts [oldboy] 172.16.1.31 172.16.1.7 还原ansible.cfg配置,重启服务器 [root@m01 ~]# ansible oldboy -m command -a "free -m" The authenticity of host '172.16.1.7 (172.16.1.7)' can't be established. ECDSA key fingerprint is SHA256:qZSBkrmOv7xO/63qOU1uLXkPyNVHdkqvrNAcAmXqNEk. ECDSA key fingerprint is MD5:23:d0:cb:a9:f4:7c:0b:eb:2d:07:00:e1:a3:12:d8:33. Are you sure you want to continue connecting (yes/no)? The authenticity of host '172.16.1.31 (172.16.1.31)' can't be established. ECDSA key fingerprint is SHA256:qZSBkrmOv7xO/63qOU1uLXkPyNVHdkqvrNAcAmXqNEk. ECDSA key fingerprint is MD5:23:d0:cb:a9:f4:7c:0b:eb:2d:07:00:e1:a3:12:d8:33. Are you sure you want to continue connecting (yes/no)? 解决yes/no不需要输入问题: 修改ansible.cfg 374行: ssh_args = -o ControlMaster=auto -o ControlPersist=60s -o StrictHostKeyChecking=no 在执行报错: [root@m01 ~]# ansible oldboy -m command -a "free -m" 172.16.1.7 | UNREACHABLE! => { "changed": false, "msg": "Failed to connect to the host via ssh: Warning: Permanently added '172.16.1.7' (ECDSA) to the list of known hosts.\r\nPermission denied (publickey,password).", "unreachable": true } 172.16.1.31 | UNREACHABLE! => { "changed": false, "msg": "Failed to connect to the host via ssh: Warning: Permanently added '172.16.1.31' (ECDSA) to the list of known hosts.\r\nPermission denied (publickey,gssapi-keyex,gssapi-with-mic,password).", "unreachable": true } 解决公钥问题: ssh-keygen -f ~/.ssh/id_rsa -P '' -q for ip in 7 do sshpass -p123456 ssh-copy-id -f -i ~/.ssh/id_rsa.pub "-o StrictHostKeyChecking=no" 172.16.1.$ip done #test ssh 172.16.1.7 "ifconfig eth0" 执行ansible命令: [root@m01 ~]# ansible oldboy -m command -a "free -m" 172.16.1.31 | UNREACHABLE! => { "changed": false, "msg": "Failed to connect to the host via ssh: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).", "unreachable": true } 172.16.1.7 | CHANGED | rc=0 >> total used free shared buff/cache available Mem: 972 69 807 7 95 771 Swap: 767 0 767 for ip in 31 do sshpass -p123456 ssh-copy-id -f -i ~/.ssh/id_rsa.pub "-o StrictHostKeyChecking=no" 172.16.1.$ip done #test ssh 172.16.1.31 "ifconfig eth0" [root@m01 ~]# ansible oldboy -m command -a "free -m" 172.16.1.7 | CHANGED | rc=0 >> total used free shared buff/cache available Mem: 972 69 807 7 95 771 Swap: 767 0 767 172.16.1.31 | CHANGED | rc=0 >> total used free shared buff/cache available Mem: 972 71 804 7 96 768 Swap: 767 0 767 验证:删除公钥,是不是不可以了? 重启后,不行,重启前可以 [root@m01 ~]# ansible oldboy -m command -a "free -m" 172.16.1.7 | UNREACHABLE! => { "changed": false, "msg": "Failed to connect to the host via ssh: Warning: Permanently added '172.16.1.7' (ECDSA) to the list of known hosts.\r\nPermission denied (publickey,password).", "unreachable": true } 172.16.1.31 | UNREACHABLE! => { "changed": false, "msg": "Failed to connect to the host via ssh: Could not create directory '/root/.ssh'.\r\nWarning: Permanently added '172.16.1.31' (ECDSA) to the list of known hosts.\r\nPermission denied (publickey,gssapi-keyex,gssapi-with-mic,password).", "unreachable": true } 修改Host增加用户和密码: [root@m01 ~]# cat /etc/ansible/hosts #[oldboy] #172.16.1.31 #172.16.1.7 [oldboy_pass] 172.16.1.31 ansible_ssh_user=root ansible_ssh_pass=123456 172.16.1.7 ansible_ssh_user=root ansible_ssh_pass=123456 结果: [root@m01 ~]# ansible oldboy_pass -m command -a "free -m" 172.16.1.31 | CHANGED | rc=0 >> total used free shared buff/cache available Mem: 972 79 791 7 101 758 Swap: 767 0 767 172.16.1.7 | CHANGED | rc=0 >> total used free shared buff/cache available Mem: 972 69 806 7 95 771 Swap: 767 0 767 结论:使用SSH连接: 密码认证 host里主机后面加密码 Paramiko模块 重点: 秘钥认证:提前发公钥,才能用ansible. SSHPASS工具 http://docs.ansible.com/ansible/latest/intro_inventory.html#list-of-behavioral-inventory-parameters 特殊端口: [oldboy] 172.16.1.7 ansible_port=52113 ansible_user=root ansible_ssh_pass=123456 172.16.1.8 ansible_port=52113 ansible_user=root ansible_ssh_pass=123456 12.基于SSH秘钥认证的实践 一键创建及分发秘钥: #!/bin/bash ssh-keygen -f ~/.ssh/id_rsa -P '' -q for ip in 7 8 41 31 do sshpass -p123456 ssh-copy-id -i ~/.ssh/id_rsa.pub "-o StrictHostKeyChecking=no" 172.16.1.$ip done [root@m01 ~]# cat /etc/ansible/hosts [oldboy] 172.16.1.31 172.16.1.41 172.16.1.7 [root@m01 ~]# ansible oldboy -m command -a "free -m" #和前面sh cmd.sh "free -m" 11.ansible命令参数 -m MODULE_NAME, 模块名字,默认command -a MODULE_ARGS, 模块参数 -f FORKS 并发进程数,默认5个。 -i INVENTORY(default=/etc/ansible/hosts)指定主机列表文件 =================== ansible ansible-doc ansible-playbook ansible-galaxy =================== 12.ansible模块查看和帮助***** 查找模块 ansible-doc -l #模块就Linux命令了。 查看某个模块的具体参数帮助 ansible-doc -s command #Linux命令参数 12.1 command模块 ***** 1)功能说明: command Executes a command on a remote node 功能说明:执行一个命令在远程节点上 操作实践: ansible oldboy -m command -a "free -m" ansible oldboy -m command -a "df -h" ansible oldboy -m command -a "ls /root" ansible oldboy -m command -a "cat redhat-release" ansible oldboy -m command -a "cat /etc/redhat-release" 最通用的功能。 [root@m01 ~]# ansible oldboy -m command -a "cat /etc/redhat-release" 172.16.1.7 | CHANGED | rc=0 >> CentOS Linux release 7.6.1810 (Core) 172.16.1.31 | CHANGED | rc=0 >> CentOS Linux release 7.6.1810 (Core) 172.16.1.41 | CHANGED | rc=0 >> CentOS Linux release 7.6.1810 (Core) [root@m01 ~]# cat /server/scripts/cmd.sh for n in 31 41 do echo "=====172.16.1.$n======" ssh 172.16.1.$n "$1" done [root@m01 ~]# sh /server/scripts/cmd.sh "cat /etc/redhat-release" =====172.16.1.31====== CentOS Linux release 7.6.1810 (Core) =====172.16.1.41====== CentOS Linux release 7.6.1810 (Core) 特殊:不支持的东西,例如 > < | &等 $HOME,替代方案用shell模块 ansible oldboy -m shell -a "ps -ef|grep ssh" ansible oldboy -m shell -a "echo oldboy >/tmp/a.log" 2)常用参数说明及实践 [root@m01 ~]# ansible-doc -s command - name: Executes a command on a remote node command: argv: # Allows the user to provide the command as a list vs. a string. Only the string or the list form can be provided, not both. One or the other must be provided. chdir: # Change into this directory before running the command. creates: # A filename or (since 2.0) glob pattern. If it already exists, this step *won't* be run. free_form: # (required) The command module takes a free form command to run. There is no parameter actually named 'free form'. See the examples! removes: # A filename or (since 2.0) glob pattern. If it already exists, this step *will* be run. stdin: # Set the stdin of the command directly to the specified value. warn: # If command_warnings are on in ansible.cfg, do not warn about this particular line if set to `no'. 参数:chdir=/tmp配置相当于cd /tmp [root@m01 ~]# ansible oldboy -m command -a "pwd chdir=/etc" ansible oldboy -m shell -a "cd /etc/;pwd" 参数:creates=/etc 相当于条件测试 [ -e /etc ]||pwd 和下面removes相反 [root@m01 ~]# ansible oldboy -m command -a "pwd creates=/etc" 参数:removes=/root 相当于条件测试 [ -e /root ]&&ls /root ansible oldboy -m command -a "ls /root removes=/root" ansible oldboy -m shell -a "[ -d /etc ]||pwd" [root@m01 ~]# ansible oldboy -m command -a "cat /etc/hosts removes=/etc/hosts" 参数:warn=False 忽略警告 [root@m01 ~]# ansible oldboy -m command -a "chmod 000 /etc/hosts warn=False" 更多官方链接:http://docs.ansible.com/ansible/latest/command_module.html或ansible-doc -s command 12.2 script模块功能说明: 功能说明:在远程节点上运行本地脚本 官方链接:http://docs.ansible.com/ansible/latest/script_module.html 远端可以没有脚本,本地有就行: [root@m01 /server/scripts]# cat setup.sh pwd ls /root for n in {1..100} do echo $n >>/tmp/oldboy.log done 执行: ansible oldboy -m script -a "/server/scripts/setup.sh" 12.3 copy模块功能说明: copy模块功能说明: 功能说明:复制文件到远程主机 官方链接:http://docs.ansible.com/ansible/latest/copy_module.html ansible oldboy -m copy -a "src=/server dest=/ mode=ugo+x group=root owner=root" ansible oldboy -m copy -a "src=/server/scripts/setup dest=/server/scripts mode=ugo+x group=root owner=root backup=yes" 12.4 shell模块功能说明: 功能说明:执行一个命令在远程节点上 官方链接:http://docs.ansible.com/ansible/latest/shell_module.html ansible oldboy -m shell -a "free -m|grep buffer" 远程执行脚本:脚本必须在远端存在 ansible oldboy -m shell -a "/bin/bash /server/scripts/setup.sh" 项目实践作业: 1、写好rsync一键客户端配置,一键服务端配置。 2、写好nfs一键服务端端配置,一键客户端挂载,并且加到自启动文件里(/etc/rc.local,/etc/fstab)。 步骤: 1、远端命令行非交互实现 echo 123456|passwd --stdin oldboy 2、所有步骤放在脚本里实现。 3、管理机上远程执行。 ssh /bin/sh /server/scripts/ins.sh 知识----能力-----价值-----金钱 学习方法: 学习能力 解决思路 任何问题有方法。 12.5 file模块功能说明: 功能说明:设置文件属性 官方链接:http://docs.ansible.com/ansible/latest/file_module.html 替代方案: ansible oldboy -m command -a "chmod 777 /etc/hosts warn=false" ansible oldboy -m command -a "chmod 644 /etc/hosts warn=false" ansible oldboy -m command -a "chown oldboy /etc/hosts warn=false" ansible oldboy -m command -a "chown root /etc/hosts warn=false" 创建目录:mkdir /tmp/oldboy_dir ansible oldboy -m file -a "dest=/tmp/oldboy_dir state=directory" 递归设置权限: ansible oldboy -m file -a "dest=/tmp/oldboy_dir state=directory mode=644 recurse=yes" 创建文件:touch /tmp/oldboy_file ansible oldboy -m file -a "dest=/tmp/oldboy_file state=touch" 删除文件:rm -f /tmp/oldboy_file ansible oldboy -m file -a "dest=/tmp/oldboy_file state=absent" 创建链接文件:ln -s /etc/hosts /tmp/link_file ansible oldboy -m file -a "src=/etc/hosts dest=/tmp/link_file state=link" ansible oldboy -m file -a "dest=/tmp/oldboy_file state=touch owner=oldboy group=oldboy mode=000" ansible oldboy -m file -a "dest=/tmp/oldboy_file state=touch owner=oldboy group=oldboy mode=ugo=rwx" 12.5 yum模块功能说明: 功能说明:yum包管理模块 官方链接:http://docs.ansible.com/ansible/latest/yum_module.html ansible oldboy -m yum -a "name=nginx state=installed" [root@nfs01 oldboy_dir]# rpm -qa nginx nginx-1.10.2-1.el6.x86_64 ###不要用yum卸载,用rpm -e卸载。 12.6 service模块功能说明: 功能说明:启动停止服务 官方链接:http://docs.ansible.com/ansible/latest/service_module.html #相当于 #service crond stop|/etc/init.d/crond stop #chkconfig crond off ansible oldboy -m service -a "name=crond state=stop enabled=no" #相当于/etc/init.d/crond start chkconfig crond on ansible oldboy -m service -a "name=crond state=started enabled=yes" ansible oldboy -m command -a "name=crond state=started enabled=yes" 12.7 cron模块功能说明: 功能说明:管理定时任务条目信息模块 官方链接:http://docs.ansible.com/ansible/latest/cron_module.html 定时任务格式: * * * * * CMD 创建定时任务: ansible oldboy -m cron -a "name='sync time' minute=00 hour=00 job='/usr/sbin/ntpdate time.nist.gov >/dev/null 2>&1'" 结果: #Ansible: sync time 00 00 * * * /usr/sbin/ntpdate time.nist.gov >/dev/null 2>&1 添加如下定时任务: 05 03 * * * /bin/sh /server/scripts/backup.sh /server/scripts/list >/dev/null 2>&1 命令如下: ansible oldboy -m cron -a "name='backup data' minute=05 hour=03 job='/bin/sh /server/scripts/backup.sh /server/scripts/list >/dev/null 2>&1'" 结果: #Ansible: backup data 05 03 * * * /bin/sh /server/scripts/backup.sh /server/scripts/list >/dev/null 2>&1 删除定时任务: ansible oldboy -m cron -a "name='backup data' state=absent" 12.8 playbook 把所有ansible命令放在文件里执行就是playbook。 playbook替代方案1: [root@m01 ~]# cat ansible.sh ansible oldboy -m file -a "dest=/tmp/oldboy_file state=touch" ansible oldboy -m file -a "dest=/tmp/oldboy_file state=touch owner=oldboy group=oldboy mode=ugo=rwx" ansible oldboy -m yum -a "name=nginx state=installed" ansible oldboy -m service -a "name=crond state=started enabled=yes" ansible oldboy -m cron -a "name='sync time' minute=00 hour=00 job='/usr/sbin/ntpdate time.nist.gov >/dev/null 2>&1'" playbook替代方案2: [root@m01 ~]# cat ~/set.sh touch /tmp/oldboy_file chown oldboy.oldboy /tmp/oldboy_file yum install nginx -y /etc/init.d/crond start chkconfig cornd on echo '#sync time oldboy' >>/var/spool/cron/root echo '00 00 * * * /usr/sbin/ntpdate time.nist.gov >/dev/null 2>&1' >>/var/spool/cron/root 执行: ansible oldboy -m script -a "~/set.sh" ansible剧本编写格式说明 ansible剧本遵循PYyaml语法规则进行编写,ymal文件基本编写规则如下说明: 规则一:缩进 yaml使用一个固定的缩进风格表示数据层结构关系,需要每个缩进级别由两个空格组成。切记一定不能使用tab键进行缩进。 规则二:冒号 每个冒号后面一定要有一个空格(以冒号结尾不需要空格,表示文件路径的模版可以不需要空格) 规则三:短横线 想要表示列表项,使用一个短横杠加一个空格。多个项使用同样的缩进级别作为同一个列表的一部分 - name: This command will change the working directory to somedir/ and will only run when /path/to/database doesn't exist. command: /usr/bin/make_database.sh arg1 arg2 args: chdir: somedir/ creates: /path/to/database [root@m01 ~]# cat /etc/ansible/a.yml - hosts: oldboy tasks: - shell: echo hello oldboy linux. >/tmp/a.log ansible oldboy -m command -a "echo hello oldboy linux." =========写成剧本 - hosts: oldboy task: - command: echo hello oldboy linux. =========写成剧本 ansible oldboy -m command -a "pwd chdir=/etc" - hosts: oldboy task: - command: echo hello oldboy linux. 用ansible完成一键部署rsync服务端。