編寫高效的服務器運維YAML腳本需要遵循一些最佳實踐和原則。以下是一些建議:
#
添加注釋,解釋代碼的作用。&
和*
來定義和引用重復的結構。try-catch
塊捕獲可能的異常并進行處理。---
name: Server Maintenance Script
description: A script to perform routine server maintenance tasks.
version: '1.0'
author: Your Name
date: 2023-04-01
variables:
server_list:
- "server1.example.com"
- "server2.example.com"
backup_dir: "/var/backups"
log_file: "/var/log/maintenance.log"
tasks:
- name: Update system packages
hosts: all
become: yes
tasks:
- name: Update apt cache
ansible.builtin.apt:
update_cache: yes
cache_valid_time: 3600
register: apt_update_result
- name: Install updates
ansible.builtin.apt:
upgrade: dist
when: apt_update_result.changed
- name: Backup configuration files
hosts: "{{ server_list }}"
become: yes
tasks:
- name: Create backup directory if it doesn't exist
ansible.builtin.file:
path: "{{ backup_dir }}"
state: directory
- name: Backup configuration files
ansible.builtin.copy:
src: "/etc/"
dest: "{{ backup_dir }}/config-{{ ansible_date }}"
remote_src: yes
register: backup_result
- name: Log backup result
ansible.builtin.lineinfile:
path: "{{ log_file }}"
line: "Backup completed on {{ ansible_date }} for {{ inventory_hostname }}"
create: yes
通過遵循這些原則和實踐,你可以編寫出高效、可靠且易于維護的服務器運維YAML腳本。
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