Question

是否有可能回溯调用者文件？

下面是我的例子

---
# ./roles/my_role/tasks/main.yml

- include_tasks: install.yml

- include_tasks: configure.yml

我可能会在install.yml中包含更多文件，例如check_docker.yml和install_docker.yml

如果在install_docker.yml中发生故障，如果呼叫跟踪类似install.yml <line number>-> install_docker.yml <line num>，则更容易找出根本原因。

Ansible是否有可能？

Answer 1

请参见Debugging tasks并启用debugger。例如，剧本

shell> cat pb.yml 
- hosts: localhost
  debugger: on_failed
  tasks:
    - include_tasks: install_docker.yml

shell> cat install_docker.yml
- name: Docker failed
  command: /usr/bin/false

给予

shell> ansible-playbook pb.yml 

PLAY [localhost] ****

TASK [Gathering Facts] ****
ok: [localhost]

TASK [include_tasks] ****
included: /export/scratch/tmp/install_docker.yml for localhost

TASK [Docker failed] ****
fatal: [localhost]: FAILED! => changed=true 
  cmd:
  - /usr/bin/false
  delta: '0:00:00.003223'
  end: '2020-10-29 10:55:22.457982'
  msg: non-zero return code
  rc: 1
  start: '2020-10-29 10:55:22.454759'
  stderr: ''
  stderr_lines: <omitted>
  stdout: ''
  stdout_lines: <omitted>
[localhost] TASK: Docker failed (debug)> help

Documented commands (type help <topic>):
========================================
EOF  c  continue  h  help  p  pprint  q  quit  r  redo  u  update_task

[localhost] TASK: Docker failed (debug)>

增加详细程度以获取更多详细信息。例如

shell> ansible-playbook test-26.yml -vvv

  ...

fatal: [localhost]: FAILED! => changed=true 
  cmd:
  - /usr/bin/false
  delta: '0:00:00.002791'
  end: '2020-10-29 10:57:33.372253'
  invocation:
    module_args:
      _raw_params: /usr/bin/false
      _uses_shell: false
      argv: null
      chdir: null
      creates: null
      executable: null
      removes: null
      stdin: null
      stdin_add_newline: true
      strip_empty_ends: true
      warn: true
  msg: non-zero return code
  rc: 1
  start: '2020-10-29 10:57:33.369462'
  stderr: ''
  stderr_lines: <omitted>
  stdout: ''
  stdout_lines: <omitted>
[localhost] TASK: Docker failed (debug)>

发生故障时能否显示呼叫跟踪？

1 个答案: