Ansible：如何检查本地和远程文件的sha1校验和

Question

Ansible：如何检查本地和远程文件的sha1校验和

5

我希望能够根据本地目录中的文件列表进行校验和。然后能够获取这些文件的校验和，并将其与远程系统上相同文件的校验和进行比较。

我知道我可以使用以下命令进行获取：

# Local File
- stat:
   path: "{{ playbook_dir }}/roles/common/files/myfile.dat"
   checksum_algorithm: sha1
  delegate_to: localhost
  run_once: true
  register: localsha_result

# Remote file
- stat:
   path: "{{ rmt_dest_dir }}/myfile.dat"
   checksum_algorithm: sha1
  register: sha_result

我尝试循环遍历我想要生成校验和的文件：

# Gather Files
- name: gather names of files
  local_action: shell  ls {{ playbook_dir }}/roles/common/files/*.dat | awk -F '/' '{ print $NF }'
  register: datfiles

# Local File 
- stat:
   path: "{{ playbook_dir }}/roles/common/files/{{ item }}"
   checksum_algorithm: sha1
  with_items: "{{ datfiles.stdout_lines }}"
  delegate_to: localhost
  run_once: true
  register: localsha_result

# Remote file
- stat:
   path: "{{ rmt_dest_dir }}/{{ item }}"
   checksum_algorithm: sha1
  with_items: "{{ datfiles.stdout_lines }}"
  register: sha_result

- name: check sha1
  fail: msg="SHA1 checksum fails"
  when: not sha_result.stat.checksum is defined or not sha_result.stat.checksum == "{{ item.stat.checksum }}"
with_items: "{{ datfiles.stdout_lines}}"

- Cale

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- Konstantin Suvorov · Accepted Answer

您只需要完成两个任务：（1）注册本地校验和，（2）比较远程校验和并将其与相应的本地校验和进行比较即可完成此操作：

---
- hosts: test-server
  tasks:
    - stat:
        path: "{{ item }}"
        checksum_algorithm: sha1
      delegate_to: localhost
      with_fileglob: /tmp/*.dat
      register: local_files
    - stat:
        path: "/tmp/{{ item.stat.path | basename }}"
        checksum_algorithm: sha1
      failed_when: remote_files.stat.checksum != item.stat.checksum
      # failed_when condition checked after every iteration
      #   and remote_files here is a result of individual task
      #   but after loop is finished, remote_files is a cobination
      #   of all iterations results
      with_items: "{{ local_files.results }}"
      register: remote_files
      loop_control:
        label: "{{ item.stat.path | basename }}"