如何在模板的文件中循环

Question

需要逐个遍历所有主机的源文件。

​

- hosts: epson*
  become: yes

  tasks:
  - name: replace id
    vars:
      id: abc
    template:
      src: epson1.j2
      dest: /home/epson.config

HOSTS FILE
[epson1]
1.1.1.1
[epson2]
1.1.1.1
[epson3]
1.1.1.1
and many more

epson1.j2
create element edge0 {
   state="ENABLED"
   id="{{ id }}"}

epson2.j2
create element edge1 {
   state="ENABLED"
   id="{{ id }}"}

我有很多模板文件，比如epson1.j2、epson2.j2等等。现在，我可以为一个主机和一个文件执行模板变量替换。如何为所有主机的所有文件执行此操作。

like - host:epson1, src: epson1.j2, dest: /home/epson.config
host:epson2, src: epson2.j2, dest: /home/epson.config
host:epson3, src: epson3.j2, dest: /home/epson.config

need looping inside src for every hosts

Answer 1

您应该能够简单地通过使用inventory_hostname神奇变量来完成此任务。

- hosts: epson*
  become: yes

  tasks:
  - name: replace id
    vars:
      id: abc
    template:
      src: {{ inventory_hostname }}.j2
      dest: /home/epson.config

该播放将为每台主机运行一次，并使用正确的.j2。