这篇文章给大家介绍集群管理工具ansible常用命令有哪些，内容非常详细，感兴趣的小伙伴们可以参考借鉴，希望对大家能有所帮助。
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集群管理工具ansible常用命令
使用ansible过程如下：
主控端：安装ansible
# install the epel-release RPM if needed on CentOS, RHEL, or Scientific Linux
[root@tidb01 ~]# yum install epel-release
[root@tidb01 ~]# yum -y install ansible
[root@tidb01 ~]# ansible --version
ansible 2.9.10
config file = /etc/ansible/ansible.cfg
configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
ansible python module location = /usr/lib/python2.7/site-packages/ansible
executable location = /usr/bin/ansible
python version = 2.7.5 (default, Apr 11 2018, 07:36:10) [GCC 4.8.5 20150623 (Red Hat 4.8.5-28)]
配置hosts，添加被管控的主机
[root@tidb01 ~]# cat /etc/ansible/hosts
[servers]
192.168.30.101
192.168.30.102
#192.168.30.103
#192.168.30.104
192.168.30.105
#192.168.30.106
生成密钥
[root@tidb01 ~]# ssh-keygen
使用ssh-copy-id命令来复制ansible公钥到各个节点
[root@tidb01 ~]# ssh-copy-id root@192.168.30.101
[root@tidb01 ~]# ssh-copy-id root@192.168.30.102
[root@tidb01 ~]# ssh-copy-id root@192.168.30.105
执行ping命令
[root@tidb01 ~]# ansible servers -m ping
#或：[root@tidb01 ~]# ansible servers -i /etc/ansible/hosts -m ping
#或：[root@tidb01 ~]# ansible -m ping servers
#或：[root@tidb01 ~]# ansible -m ping all
192.168.30.102 | SUCCESS => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": false,
"ping": "pong"
}
192.168.30.105 | SUCCESS => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": false,
"ping": "pong"
}
192.168.30.101 | SUCCESS => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": false,
"ping": "pong"
}指定用户，执行ping命令
[root@tidb01 ~]# ssh-copy-id chen@192.168.30.101
[root@tidb01 ~]# ssh-copy-id chen@192.168.30.102
[root@tidb01 ~]# ssh-copy-id chen@192.168.30.105
[root@tidb01 ~]# ansible all -m ping -u chen
192.168.30.105 | SUCCESS => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": false,
"ping": "pong"
}
192.168.30.102 | SUCCESS => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": false,
"ping": "pong"
}
192.168.30.101 | SUCCESS => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": false,
"ping": "pong"
}执行命令echo hello
[root@tidb01 ~]# ansible -a "echo hello" servers
192.168.30.105 | CHANGED | rc=0 >>
hello
192.168.30.101 | CHANGED | rc=0 >>
hello
192.168.30.102 | CHANGED | rc=0 >>
hello
执行命令date -R
[root@tidb01 ~]# ansible -m command -a "date -R" servers
192.168.30.102 | CHANGED | rc=0 >>
Sun, 28 Jun 2020 09:15:55 +0800
192.168.30.105 | CHANGED | rc=0 >>
Sun, 28 Jun 2020 09:15:54 +0800
192.168.30.101 | CHANGED | rc=0 >>
Sun, 28 Jun 2020 09:15:56 +0800
执行命令uptime
[root@tidb01 ~]# ansible -m command -a "uptime" servers
192.168.30.102 | CHANGED | rc=0 >>
09:17:21 up 23 min, 2 users, load average: 0.00, 0.01, 0.05
192.168.30.105 | CHANGED | rc=0 >>
09:17:21 up 22 min, 2 users, load average: 0.24, 0.06, 0.07
192.168.30.101 | CHANGED | rc=0 >>
09:17:22 up 11 min, 2 users, load average: 0.08, 0.09, 0.07
执行命令touch /root/cjc.log
[root@tidb01 ~]# ansible -m command -a "touch /root/cjc.log" servers
[WARNING]: Consider using the file module with state=touch rather than running 'touch'. If
you need to use command because file is insufficient you can add 'warn: false' to this command
task or set 'command_warnings=False' in ansible.cfg to get rid of this message.
192.168.30.102 | CHANGED | rc=0 >>
192.168.30.105 | CHANGED | rc=0 >>
192.168.30.101 | CHANGED | rc=0 >>
执行命令ls /root/cjc.log
[root@tidb01 ~]# ansible -m command -a "ls /root/cjc.log" servers
192.168.30.105 | CHANGED | rc=0 >>
/root/cjc.log
192.168.30.102 | CHANGED | rc=0 >>
/root/cjc.log
192.168.30.101 | CHANGED | rc=0 >>
/root/cjc.log
执行命令getenforce
[root@tidb01 ~]# ansible -m command -a "getenforce" servers
192.168.30.102 | CHANGED | rc=0 >>
Disabled
192.168.30.105 | CHANGED | rc=0 >>
Disabled
192.168.30.101 | CHANGED | rc=0 >>
Disabled
或：
[root@tidb01 ~]# ansible -a "getenforce" servers
192.168.30.105 | CHANGED | rc=0 >>
Disabled
192.168.30.102 | CHANGED | rc=0 >>
Disabled
192.168.30.101 | CHANGED | rc=0 >>
Disabled
指定其中一个主机执行命令
[root@tidb01 ~]# ansible -a "getenforce" 192.168.30.101
192.168.30.101 | CHANGED | rc=0 >>
Disabled
执行命令df -h
[root@tidb01 ~]# ansible -a "df -h /" servers
192.168.30.102 | CHANGED | rc=0 >>
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_cjc-lv_root 18G 7.1G 11G 40% /
192.168.30.105 | CHANGED | rc=0 >>
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_cjc-lv_root 18G 7.0G 11G 40% /
192.168.30.101 | CHANGED | rc=0 >>
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_srv-lv_root 25G 8.1G 17G 33% /
执行命令free -m
[root@tidb01 ~]# ansible -a "free -m" servers
192.168.30.105 | CHANGED | rc=0 >>
total used free shared buff/cache available
Mem: 974 411 116 8 446 350
Swap: 2043 0 2043
192.168.30.102 | CHANGED | rc=0 >>
total used free shared buff/cache available
Mem: 974 414 156 8 403 350
Swap: 2043 0 2043
192.168.30.101 | CHANGED | rc=0 >>
total used free shared buff/cache available
Mem: 974 413 98 8 462 367
Swap: 3071 0 3071
执行命令，查看sshd进程
[root@tidb01 ~]# ansible -m shell -a 'ps -ef|grep sshd|grep -v grep' servers
192.168.30.105 | CHANGED | rc=0 >>
root 1374 1 0 08:54 ? 00:00:00 /usr/sbin/sshd -D
root 2090 1374 0 08:56 ? 00:00:00 sshd: root@pts/0
root 8581 1374 0 10:38 ? 00:00:00 sshd: root@pts/1
192.168.30.102 | CHANGED | rc=0 >>
root 1370 1 0 08:54 ? 00:00:00 /usr/sbin/sshd -D
root 2089 1370 0 08:56 ? 00:00:00 sshd: root@pts/0
root 9041 1370 0 10:38 ? 00:00:00 sshd: root@pts/2
root 10181 1370 0 10:41 ? 00:00:00 sshd: root@pts/1
192.168.30.101 | CHANGED | rc=0 >>
root 1009 1 0 09:06 ? 00:00:00 /usr/sbin/sshd -D
root 1242 1009 0 09:06 ? 00:00:00 sshd: root@pts/1
root 8590 1009 0 10:38 ? 00:00:00 sshd: root@pts/2
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