ansible 安装和简单使用

A yum -y install ansible

B 打通管理节点到各个被管理节点的免密码ssh

cat .ssh/id_rsa.pub > .ssh/authorized_keys

authorized_keys 分发给各个server

C 添加主机配置

vi /etc/hosts

192.168.31.182 centos7_1

192.168.31.22 centos7_2

192.168.31.189 centos7_3

192.168.31.193 centos7_4

vi /etc/ansible/hosts

[testdb]

centos7_1

centos7_2

centos7_3

centos7_4

# 测试是否能 ping 通

ansible all -m ping

# 在所有节点上执行命令

ansible all -a "hostname"

使用 paybook 语言

将目标机器进行分组

[testdb]

test1

test2

test3

对不同的组执行命令

ansible testdb -a "hostname"

ansible ywdb -a "hostname"

ansible <pattern_goes_here> -m <module_name> -a <arguments>

ansible webservers -m service -a "name=httpd state=restarted"

组里面也可以进一步定义包含哪些机器不包含哪些机器

webservers:dbservers:&staging:!phoenix

webservers:!{{excluded}}:&{{required}}

# 在指定的节点上或者多个节点上

[root@test12 ~]# ansible testdb[0] -a "hostname"

test1 | SUCCESS | rc=0 >>

test1

[root@test12 ~]# ansible testdb[0:8] -a "hostname"

test4 | SUCCESS | rc=0 >>

test4

test5 | SUCCESS | rc=0 >>

test5

test3 | SUCCESS | rc=0 >>

test3

# 拷贝文件

ansible atlanta -m copy -a "src=/etc/hosts dest=/tmp/hosts"

# 修改文件权限

ansible webservers -m file -a "dest=/srv/foo/a.txt mode=600"

ansible webservers -m file -a "dest=/srv/foo/b.txt mode=600 owner=mdehaan group=mdehaan"

ansible testdb[0] -m file -a "dest=/tmp/hosts mode=600"

ansible testdb[0] -m file -a "dest=/tmp/hosts mode=600 owner=mysql group=dba"

# 创建目录

ansible webservers -m file -a "dest=/path/to/c mode=755 owner=mdehaan group=mdehaan state=directory"

ansible testdb[0] -m file -a "dest=/tmp/hostsss mode=755 owner=mysql group=dba state=directory"

# 删除目录

ansible webservers -m file -a "dest=/path/to/c state=absent"

ansible testdb[0] -m file -a "dest=/tmp/hostsss state=absent"

# 安装软件

## 确认包是否安装

ansible webservers -m yum -a "name=acme state=present"

ansible testdb[0] -m yum -a "name=python state=present"

## 确认安装包的版本、

ansible webservers -m yum -a "name=acme-1.5 state=present"

ansible testdb[0] -m yum -a "name=python-2.7 state=present"

## 确认一个包还没有安装

ansible webservers -m yum -a "name=acme state=absent"

ansible testdb[0] -m yum -a "name=python3 state=absent"

## 管理用户

ansible all -m user -a "name=foo password=<crypted password here>"

ansible all -m user -a "name=foo state=absent"

## git 部署webapp

ansible webservers -m git -a "repo=git://foo.example.org/repo.git dest=/srv/myapp version=HEAD"

## 服务管理

ansible testdb[0] -m service -a "name=ntpd state=started"

ansible testdb[0] -m service -a "name=ntpd state=stoped"

ansible testdb[0] -m service -a "name=ntpd state=started"

来源：https://www.cnblogs.com/mhabbyo/p/10601371.html

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ansible