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ansible 初级使用yum install ansible -y设置本机免密钥登录到 192.168.1.21ssh-copy-id 192.168.1.21vim /etc/ansible/hosts 添加2行[web]192.168.1.21命令行操作方法,:ansible 主机组或ip -m 指定模块 -a 模块对应的参数ansible 192.168.1.21 -m shell -a "echo hello"192.168.1.21 | SUCCESS | rc=0 >>helloansible 192.168.1.21 -m setup # 主机所有信息 ansible 192.168.1.21 -m setup -a "filter=ansible_hostname" # 用setup模块取得主机名192.168.1.21 | SUCCESS => { "ansible_facts": { "ansible_hostname": "21hostname" }, "changed": false}ansible web -m shell -a "echo hello"192.168.1.21 | SUCCESS | rc=0 >>hello编写简单的play-bookcat test.yml---- hosts: 192.168.1.21 tasks: - name: just test ansible shell: echo hello - name: get hostname setup: filter=ansible_hostname 执行 ansible-play test.ymlPLAY [192.168.1.21] ********************************************************************************************************************************************************TASK [Gathering Facts] *****************************************************************************************************************************************************ok: [192.168.1.21]TASK [just test ansible] ***************************************************************************************************************************************************changed: [192.168.1.21]TASK [get hostname] ********************************************************************************************************************************************************ok: [192.168.1.21]PLAY RECAP *****************************************************************************************************************************************************************192.168.1.21 : ok=3 changed=1 unreachable=0 failed=0 如需要指定其他ip,可以---- hosts: all # 这改成all tasks: - name: just test ansible shell: echo hello - name: get hostname setup: filter=ansible_hostnameansible-playbook -i '192.168.1.21,' test.yml # -i 指定执行清单 记得192.168.1.21, 后面有逗号.play-book 中传入默认变量---- hosts: 192.168.1.146 remote_user: root vars: - hello: hello-world # 设定hello 变量的默认值为 hello-world gather_facts: false # 可选参数 tasks: - name: var test shell: echo { { hello }} > /dev/pts/0ansible-play a.yml 输出为hello-worldansible-play a.yml -e hello=xiaoming 输出为小明ansible play-book 一个套路,记得最基本的方法,使用其他模块一样的。play-book 中做条件判断- name: check kafka shell: pip list | grep kafka | wc -l ignore_errors: True register: check_kafka- name: pip install kafka-1.3.5 shell: pip install { { item }} with_items: - kafka when: check_kafka.stdout == "0" 判断是否已经安装了kafka 没安装则安装,已安装则跳过。- name: install zabbix-agent for centos-7 yum: name=zabbix22-agent.x86_64 state=present when: ansible_os_family == "RedHat" and ansible_distribution_major_version == "7" 判断是否是redhat或centos 7 版本,来安装对应的包。
转载于:https://blog.51cto.com/19941018/2067632