ansible

更详细参考第16章 使用Ansible服务实现自动化运维 | 《Linux就该这么学》 (linuxprobe.com)

yum install -y epel-release

yum install -y ansible

node-8执行操作

ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa -q

for ((host_id=8;host_id<=10;host_id++));do ssh-copy-id node-${host_id} ;done

cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.1.8     node-8
192.168.1.9     node-9
192.168.1.10    node-10

   Ansible常用变量汇总

参数	                作用
ansible_ssh_host	受管主机名
ansible_ssh_port	端口号
ansible_ssh_user	默认账号
ansible_ssh_pass	默认密码
ansible_shell_type	Shell终端类型

vim /etc/ansible/hosts
[es]
192.168.1.8
192.168.1.9
192.168.1.10

ansible all -m ping
192.168.1.8 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    },
    "changed": false,
    "ping": "pong"
}
192.168.1.9 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    },
    "changed": false,
    "ping": "pong"
}
192.168.1.10 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    },
    "changed": false,
    "ping": "pong"
}

ansible all -m shell -a 'cat /etc/hosts'
192.168.1.9 | CHANGED | rc=0 >>
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.1.8     node-8
192.168.1.9     node-9
192.168.1.10    node-10
192.168.1.8 | CHANGED | rc=0 >>
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.1.8     node-8
192.168.1.9     node-9
192.168.1.10    node-10
192.168.1.10 | CHANGED | rc=0 >>
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.1.8     node-8
192.168.1.9     node-9
192.168.1.10    node-10

ansible all -m shell -a 'id'
192.168.1.9 | CHANGED | rc=0 >>
uid=0(root) gid=0(root) 组=0(root) 环境=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
192.168.1.10 | CHANGED | rc=0 >>
uid=0(root) gid=0(root) 组=0(root) 环境=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
192.168.1.8 | CHANGED | rc=0 >>
uid=0(root) gid=0(root) 组=0(root) 环境=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023

 ansible-playbook packages.yml

PLAY [安装软件包] ***********************************************************************************************************

TASK [Gathering Facts] *************************************************************************************************
ok: [192.168.1.10]
ok: [192.168.1.9]
ok: [192.168.1.8]

TASK [one] *************************************************************************************************************
ok: [192.168.1.8]
changed: [192.168.1.10]
changed: [192.168.1.9]

PLAY RECAP *************************************************************************************************************
192.168.1.10               : ok=2    changed=1    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0
192.168.1.8                : ok=2    changed=0    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0
192.168.1.9                : ok=2    changed=1    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0

[root@node-8 ~]# cat packages.yml
---
- name: 安装软件包
  hosts: es
  tasks:
          - name: one
            yum:
                    name: vim
                    state: latest