168 lines
7.9 KiB
YAML
168 lines
7.9 KiB
YAML
---
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- name: 磁盘空间分析 - 使用 ncdu 工具
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hosts: all
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become: yes
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vars:
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ncdu_scan_paths:
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- "/"
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- "/var"
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- "/opt"
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- "/home"
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output_dir: "/tmp/disk-analysis"
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tasks:
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- name: 安装 ncdu 工具
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package:
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name: ncdu
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state: present
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register: ncdu_install
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- name: 创建输出目录
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file:
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path: "{{ output_dir }}"
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state: directory
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mode: '0755'
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- name: 检查磁盘空间使用情况
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shell: df -h
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register: disk_usage
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- name: 显示当前磁盘使用情况
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debug:
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msg: |
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=== {{ inventory_hostname }} 磁盘使用情况 ===
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{{ disk_usage.stdout }}
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- name: 使用 ncdu 扫描根目录并生成报告
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shell: |
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ncdu -x -o {{ output_dir }}/ncdu-root-{{ inventory_hostname }}.json /
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async: 300
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poll: 0
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register: ncdu_root_scan
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- name: 使用 ncdu 扫描 /var 目录
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shell: |
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ncdu -x -o {{ output_dir }}/ncdu-var-{{ inventory_hostname }}.json /var
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async: 180
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poll: 0
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register: ncdu_var_scan
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when: ansible_mounts | selectattr('mount', 'equalto', '/var') | list | length > 0 or '/var' in ansible_mounts | map(attribute='mount') | list
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- name: 使用 ncdu 扫描 /opt 目录
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shell: |
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ncdu -x -o {{ output_dir }}/ncdu-opt-{{ inventory_hostname }}.json /opt
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async: 120
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poll: 0
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register: ncdu_opt_scan
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when: ansible_mounts | selectattr('mount', 'equalto', '/opt') | list | length > 0 or '/opt' in ansible_mounts | map(attribute='mount') | list
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- name: 等待根目录扫描完成
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async_status:
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jid: "{{ ncdu_root_scan.ansible_job_id }}"
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register: ncdu_root_result
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until: ncdu_root_result.finished
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retries: 60
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delay: 5
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- name: 等待 /var 目录扫描完成
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async_status:
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jid: "{{ ncdu_var_scan.ansible_job_id }}"
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register: ncdu_var_result
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until: ncdu_var_result.finished
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retries: 36
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delay: 5
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when: ncdu_var_scan is defined and ncdu_var_scan.ansible_job_id is defined
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- name: 等待 /opt 目录扫描完成
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async_status:
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jid: "{{ ncdu_opt_scan.ansible_job_id }}"
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register: ncdu_opt_result
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until: ncdu_opt_result.finished
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retries: 24
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delay: 5
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when: ncdu_opt_scan is defined and ncdu_opt_scan.ansible_job_id is defined
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- name: 生成磁盘使用分析报告
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shell: |
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echo "=== {{ inventory_hostname }} 磁盘分析报告 ===" > {{ output_dir }}/disk-report-{{ inventory_hostname }}.txt
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echo "生成时间: $(date)" >> {{ output_dir }}/disk-report-{{ inventory_hostname }}.txt
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echo "" >> {{ output_dir }}/disk-report-{{ inventory_hostname }}.txt
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echo "=== 磁盘使用情况 ===" >> {{ output_dir }}/disk-report-{{ inventory_hostname }}.txt
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df -h >> {{ output_dir }}/disk-report-{{ inventory_hostname }}.txt
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echo "" >> {{ output_dir }}/disk-report-{{ inventory_hostname }}.txt
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echo "=== 最大的目录 (前10个) ===" >> {{ output_dir }}/disk-report-{{ inventory_hostname }}.txt
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du -h --max-depth=2 / 2>/dev/null | sort -hr | head -10 >> {{ output_dir }}/disk-report-{{ inventory_hostname }}.txt
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echo "" >> {{ output_dir }}/disk-report-{{ inventory_hostname }}.txt
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echo "=== /var 目录最大文件 ===" >> {{ output_dir }}/disk-report-{{ inventory_hostname }}.txt
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find /var -type f -size +100M -exec ls -lh {} \; 2>/dev/null | head -10 >> {{ output_dir }}/disk-report-{{ inventory_hostname }}.txt
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echo "" >> {{ output_dir }}/disk-report-{{ inventory_hostname }}.txt
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echo "=== /tmp 目录使用情况 ===" >> {{ output_dir }}/disk-report-{{ inventory_hostname }}.txt
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du -sh /tmp/* 2>/dev/null | sort -hr | head -5 >> {{ output_dir }}/disk-report-{{ inventory_hostname }}.txt
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echo "" >> {{ output_dir }}/disk-report-{{ inventory_hostname }}.txt
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echo "=== 日志文件大小 ===" >> {{ output_dir }}/disk-report-{{ inventory_hostname }}.txt
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find /var/log -name "*.log" -type f -size +50M -exec ls -lh {} \; 2>/dev/null >> {{ output_dir }}/disk-report-{{ inventory_hostname }}.txt
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- name: 显示分析报告
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shell: cat {{ output_dir }}/disk-report-{{ inventory_hostname }}.txt
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register: disk_report
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- name: 输出磁盘分析结果
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debug:
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msg: "{{ disk_report.stdout }}"
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- name: 检查是否有磁盘使用率超过 80%
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shell: df -h | awk 'NR>1 {gsub(/%/, "", $5); if($5 > 80) print $0}'
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register: high_usage_disks
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- name: 警告高磁盘使用率
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debug:
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msg: |
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⚠️ 警告: {{ inventory_hostname }} 发现高磁盘使用率!
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{{ high_usage_disks.stdout }}
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when: high_usage_disks.stdout != ""
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- name: 创建清理建议
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shell: |
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echo "=== {{ inventory_hostname }} 清理建议 ===" > {{ output_dir }}/cleanup-suggestions-{{ inventory_hostname }}.txt
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echo "" >> {{ output_dir }}/cleanup-suggestions-{{ inventory_hostname }}.txt
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echo "1. 检查日志文件:" >> {{ output_dir }}/cleanup-suggestions-{{ inventory_hostname }}.txt
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find /var/log -name "*.log" -type f -size +100M -exec echo " 大日志文件: {}" \; 2>/dev/null >> {{ output_dir }}/cleanup-suggestions-{{ inventory_hostname }}.txt
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echo "" >> {{ output_dir }}/cleanup-suggestions-{{ inventory_hostname }}.txt
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echo "2. 检查临时文件:" >> {{ output_dir }}/cleanup-suggestions-{{ inventory_hostname }}.txt
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find /tmp -type f -size +50M -exec echo " 大临时文件: {}" \; 2>/dev/null >> {{ output_dir }}/cleanup-suggestions-{{ inventory_hostname }}.txt
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echo "" >> {{ output_dir }}/cleanup-suggestions-{{ inventory_hostname }}.txt
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echo "3. 检查包缓存:" >> {{ output_dir }}/cleanup-suggestions-{{ inventory_hostname }}.txt
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if [ -d /var/cache/apt ]; then
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echo " APT 缓存大小: $(du -sh /var/cache/apt 2>/dev/null | cut -f1)" >> {{ output_dir }}/cleanup-suggestions-{{ inventory_hostname }}.txt
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fi
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if [ -d /var/cache/yum ]; then
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echo " YUM 缓存大小: $(du -sh /var/cache/yum 2>/dev/null | cut -f1)" >> {{ output_dir }}/cleanup-suggestions-{{ inventory_hostname }}.txt
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fi
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echo "" >> {{ output_dir }}/cleanup-suggestions-{{ inventory_hostname }}.txt
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echo "4. 检查容器相关:" >> {{ output_dir }}/cleanup-suggestions-{{ inventory_hostname }}.txt
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if command -v podman >/dev/null 2>&1; then
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echo " Podman 镜像: $(podman images --format 'table {{.Repository}} {{.Tag}} {{.Size}}' 2>/dev/null | wc -l) 个" >> {{ output_dir }}/cleanup-suggestions-{{ inventory_hostname }}.txt
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echo " Podman 容器: $(podman ps -a --format 'table {{.Names}} {{.Status}}' 2>/dev/null | wc -l) 个" >> {{ output_dir }}/cleanup-suggestions-{{ inventory_hostname }}.txt
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fi
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- name: 显示清理建议
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shell: cat {{ output_dir }}/cleanup-suggestions-{{ inventory_hostname }}.txt
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register: cleanup_suggestions
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- name: 输出清理建议
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debug:
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msg: "{{ cleanup_suggestions.stdout }}"
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- name: 保存 ncdu 文件位置信息
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debug:
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msg: |
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📁 ncdu 扫描文件已保存到:
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- 根目录: {{ output_dir }}/ncdu-root-{{ inventory_hostname }}.json
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- /var 目录: {{ output_dir }}/ncdu-var-{{ inventory_hostname }}.json (如果存在)
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- /opt 目录: {{ output_dir }}/ncdu-opt-{{ inventory_hostname }}.json (如果存在)
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💡 使用方法:
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ncdu -f {{ output_dir }}/ncdu-root-{{ inventory_hostname }}.json
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📊 完整报告: {{ output_dir }}/disk-report-{{ inventory_hostname }}.txt
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🧹 清理建议: {{ output_dir }}/cleanup-suggestions-{{ inventory_hostname }}.txt |