修改文件内容
按照下方所述，创建一个名为 /home/greg/ansible/issue.yml
的 playbook：
该 playbook 将在 所有清单主机 上运行
该 playbook 会将 /etc/issue
的内容替换为下方所示的一行文本：
在 dev
主机组中的主机上，这行文本显示为：Development
在 test
主机组中的主机上，这行文本显示为：Test
在 prod
主机组中的主机上，这行文本显示为：Production
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| [greg@control ansible]$ vim /home/greg/ansible/issue.yml
---
- name: 修改文件内容
hosts: all
tasks:
- name: Copy using inline content
copy:
content: 'Development'
dest: /etc/issue
when: inventory_hostname in groups['dev']
- name: Copy using inline content
copy:
content: 'Test'
dest: /etc/issue
when: inventory_hostname in groups['test']
- name: Copy using inline content
copy:
content: 'Production'
dest: /etc/issue
when: inventory_hostname in groups['prod']
[greg@control ansible]$ ansible-playbook issue.yml
[greg@control ansible]$ ansible dev -a 'cat /etc/issue'
node1 | CHANGED | rc=0 >>
Development
[greg@control ansible]$ ansible test -a 'cat /etc/issue'
node2 | CHANGED | rc=0 >>
Test
[greg@control ansible]$ ansible prod -a 'cat /etc/issue'
node4 | CHANGED | rc=0 >>
Production
node3 | CHANGED | rc=0 >>
Production
|