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  • ansible简单入门

    1,结构框架

    Ansible 使用的是无代理体系结构,这种体系结构可以通过防止节点轮询控制机器来减少网络开销。Ansible 提供的结果框架如下所示:

    • Ansible :运行在中央计算机上;
    • Connection Plugins :连接插件,主要用于本地与操作端之间的连接与通信;
    • Host Inventory:指定操作的主机,是一个配置文件里面定义监控的主机;
    • Modules:核心模块、自定义模块等等;
    • Plugins :使用插件来完成记录日志、邮件等功能;
    • Playbooks:执行多任务,通过 SSH 部署模块到节点上,可多个节点也可以单个节点。

    2,安装

    #安装ansible
    [root@ansible ~]# apt install -y ansible
    
    

    3,配置主机清单

    root@DESKTOP-9SJGER3:~# vim /etc/ansible/hosts 
    
    [54.103-compute]
    192.168.54.148  ansible_ssh_user=root ansible_ssh_pass=*********
    192.168.54.150  ansible_ssh_user=root ansible_ssh_pass=*********
    
    [54.103-controller]
    192.168.54.103   ansible_ssh_user=root ansible_ssh_pass=*********
    

    主机连接:

    • ansible_connection 连接到主机的类型,任何可能的连接插件名称,例如,SSH 协议类型中有:sshsmartparamiko

    一般连接:

    • ansible_host 要连接的主机名称。
    • ansible_port ssh 端口号。
    • ansible_user 默认 ssh 用户名。

    具体的 SSH 连接:

    • ansible_ssh_pass ssh密码
    • ansible_ssh_private_key_file 由 ssh 使用的私钥文件。

    4,简单测试、

    1,ping

    root@DESKTOP-9SJGER3:~# ansible 54.103-compute -m ping
    192.168.54.148 | SUCCESS => {
        "ansible_facts": {
            "discovered_interpreter_python": "/usr/bin/python"
        }, 
        "changed": false, 
        "ping": "pong"
    }
    192.168.54.149 | SUCCESS => {
        "ansible_facts": {
            "discovered_interpreter_python": "/usr/bin/python"
        }, 
        "changed": false, 
        "ping": "pong"
    }
    192.168.54.150 | SUCCESS => {
        "ansible_facts": {
            "discovered_interpreter_python": "/usr/bin/python"
        }, 
        "changed": false, 
        "ping": "pong"
    }
    root@DESKTOP-9SJGER3:~# 
    
    root@DESKTOP-9SJGER3:~# ansible all  -m ping
     SUCCESS => {
        "ansible_facts": {
            "discovered_interpreter_python": "/usr/bin/python"
        }, 
        "changed": false, 
        "ping": "pong"
    }
    192.168.54.148 | SUCCESS => {
        "ansible_facts": {
            "discovered_interpreter_python": "/usr/bin/python"
        }, 
        "changed": false, 
        "ping": "pong"
    }
    192.168.54.150 | SUCCESS => {
        "ansible_facts": {
            "discovered_interpreter_python": "/usr/bin/python"
        }, 
        "changed": false, 
        "ping": "pong"
    }
    192.168.54.103 | SUCCESS => {
        "ansible_facts": {
            "discovered_interpreter_python": "/usr/bin/python"
        }, 
        "changed": false, 
        "ping": "pong"
    }
    root@DESKTOP-9SJGER3:~# 
    
    

    2,执行命令

    root@DESKTOP-9SJGER3:~# ansible all -m shell -a 'free -h'
    192.168.54.150 | CHANGED | rc=0 >>
                  total        used        free      shared  buff/cache   available
    Mem:           7.6G        2.7G        211M        350M        4.8G        4.3G
    Swap:          8.0G        2.7M        8.0G
    
    192.168.54.148 | CHANGED | rc=0 >>
                  total        used        free      shared  buff/cache   available
    Mem:           7.6G        2.4G        178M        358M        5.0G        4.6G
    Swap:          8.0G         10M        8.0G
    
    192.168.54.149 | CHANGED | rc=0 >>
                  total        used        free      shared  buff/cache   available
    Mem:           7.6G        3.2G        1.9G        358M        2.5G        3.8G
    Swap:          8.0G        575M        7.4G
    
    192.168.54.103 | CHANGED | rc=0 >>
                  total        used        free      shared  buff/cache   available
    Mem:            15G         13G        330M        703M        1.5G        731M
    Swap:          8.0G        7.6G        387M
    
    
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  • 原文地址:https://www.cnblogs.com/mrwuzs/p/11987089.html
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