我必須從文本檔案中讀取每一行并將其添加到 yaml 中。這是我的劇本
- hosts: localhost
tasks:
- name: Register a file content as a variable
ansible.builtin.shell: cat /home/packages.txt
register: result
- name: Print the transformed variable
ansible.builtin.debug:
msg: '{{ item }}'
loop: '{{ result.stdout | list }}'
- name: install
shell: yum install '{{ item }}'
loop: '{{ result.stdout | list }}'
packages.txt 包含
nginx
vim
grafana
當我運行它時，沒有安裝軟體包。這是控制臺輸出，
TASK [Register a file content as a variable] **********************************************************************************
changed: [localhost]
TASK [Print the transformed variable] *****************************************************************************************
TASK [install] ****************************************************************************************************************
PLAY RECAP ********************************************************************************************************************
localhost : ok=2 changed=1 unreachable=0 failed=0 skipped=2 rescued=0 ignored=0
要求是通過這個 ansible playbook 從文本檔案中安裝這些包
uj5u.com熱心網友回復：
給定檔案
shell> cat packages.txt
nginx
vim
grafana
在本地主機上，只需迭代串列，例如下面的劇本
shell> cat test.yml
- hosts: localhost
tasks:
- name: install
package: "{{ item }}"
loop: "{{ lookup('file', 'packages.txt').split('\n') }}"
給
shell> ansible-playbook test.yml --check
PLAY [localhost] *****************************************************
TASK [install] *******************************************************
ok: [localhost] => (item=nginx)
ok: [localhost] => (item=vim)
ok: [localhost] => (item=grafana)
PLAY RECAP ***********************************************************
localhost: ok=1 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
在遠程主機上（僅在本地主機上進行查找），迭代stdout_lines，例如
- name: Register a file content as a variable
command: cat packages.txt
register: result
- name: install
package: "{{ item }}"
loop: "{{ result.stdout_lines }}"
或者，如果您想避免使用命令或shell模塊，請使用fetch。例如，在下面的劇本中
shell> cat test.yml
- hosts: test_11
tasks:
- name: Create directory files
file:
state: directory
path: files
- name: Get file
fetch:
src: packages.txt
dest: files
- name: install
package:
name: "{{ item }}"
loop: "{{ lookup('file', path).split('\n') }}"
vars:
path: 'files/{{ inventory_hostname }}/packages.txt'
創建目錄檔案并首先從遠程主機獲取檔案。這將創建檔案
shell> cat files/test_11/packages.txt
nginx
vim
grafana
然后迭代檔案中的行
TASK [install] ***************************************************
changed: [test_11] => (item=nginx)
changed: [test_11] => (item=vim)
changed: [test_11] => (item=grafana)
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