ansible AttributeError: 'list' object has no attribute 'startswith'

Question

我是运行 ansible 并试图使这个任务工作，它失败并出现以下错误：

An exception occurred during task execution. To see the full traceback, use -vvv. The error was: AttributeError: 'list' object has no attribute 'startswith' fatal: [test-1]: FAILED! => {"failed": true, "msg": "Unexpected failure during module execution.", "stdout": ""} msg: Unexpected failure during module execution.

密码是：

  - name: Register env Type
    shell: facter configured_setup
    register: setup

  - name: foo tasks
    shell: {{some_script}} -t -a {{hosts}} -i {{inventory_hostname}}
    register: test
    when: setup.stdout == "something"

  - name: fetch group_vars
    fetch:
      src:
       - { "{{ item }}", when: setup.stdout == "something" }
      dest: "{{group_vars}}"
      flat: yes
    with_items:
      - "{{ test.stdout_lines[0] }}"
      - "{{ test.stdout_lines[1] }}"

“fetch group_vars”是一个总是失败的任务，知道它是如何工作的吗？我想做的是添加更多源文件以从不同的设置器中获取。所以我想在“src:”下有更多的行，说 - { filename, when setup.stdout =="something else" }

完整的错误是：

An exception occurred during task execution. The full traceback is: Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/ansible/executor/task_executor.py", line 96, in run item_results = self._run_loop(items) File "/usr/lib/python2.7/site-packages/ansible/executor/task_executor.py", line 252, in _run_loop res = self._execute(variables=task_vars) File "/usr/lib/python2.7/site-packages/ansible/executor/task_executor.py", line 446, in _execute result = self._handler.run(task_vars=variables) File "/usr/lib/python2.7/site-packages/ansible/plugins/action/fetch.py", line 62, in run source = self._remote_expand_user(source) File "/usr/lib/python2.7/site-packages/ansible/plugins/action/init.py", line 460, in _remote_expand_user if not path.startswith('~'): # FIXME: Windows paths may start with "~ instead of just ~ AttributeError: 'list' object has no attribute 'startswith'

fatal: [test-1]: FAILED! => {"failed": true, "msg": "Unexpected failure during module execution.", "stdout": ""} msg: Unexpected failure during module execution.

Answer 1

抓取的ansible documentation clearly states，抓取一个文件，而不是文件列表。尽管可以对应用程序进行编程以处理从 YAML 文档加载的标量和序列，但这不是自动的，而且几乎肯定会反映在文档中。

由于您已经有了更高级别的序列，只需扩展它即可。

- name: Register env Type
  shell: facter configured_setup
  register: setup

- name: transparency tasks
  shell: {{some_script}} -t -a {{hosts}} -i {{inventory_hostname}}
  register: test
  when: setup.stdout == "something"

- name: fetch group_vars
  fetch:
    src: { "{{ item }}", when: setup.stdout == "something" }
    dest: "{{group_vars}}"
    flat: yes
  with_items:
    - "{{ test.stdout_lines[0] }}"
    - "{{ test.stdout_lines[1] }}"

- name: fetch group_vars2
  fetch:
    src: { filename, when setup.stdout =="something else" }
    dest: "{{group_vars}}"
    flat: yes
  with_items:
    - "{{ test.stdout_lines[0] }}"
    - "{{ test.stdout_lines[1] }}"

您可以通过使用 YAML 的锚点和 merge:

来减少重复性

- name: Register env Type
  shell: facter configured_setup
  register: setup

- name: transparency tasks
  shell: {{some_script}} -t -a {{hosts}} -i {{inventory_hostname}}
  register: test
  when: setup.stdout == "something"

- &fetchtask
  name: fetch group_vars
  fetch: &fetchsrc
    src: { "{{ item }}", when: setup.stdout == "something" }
    dest: "{{group_vars}}"
    flat: yes
  with_items:
    - "{{ test.stdout_lines[0] }}"
    - "{{ test.stdout_lines[1] }}"

- <<: *fetchtask
  name: fetch group_vars2
  fetch:
    <<: *fetchsrc
    src: { filename, when setup.stdout =="something else" }

Ansible 可能会在将文档交给 YAML 解析器之前扩展 {{...}}，否则 "transparency task" 中 shell 的值会引发错误。但是您可能仍然应该引用 dest

的值

Answer 2

所以我最终这样做了（这是有效的）：

  - name: fetch group_vars test
    fetch:
      src: "{{ item }}"
      dest: "{{group_vars}}"
      flat: yes
    with_items:
      - "{{ test.stdout_lines[0] }}"
      - "{{ test.stdout_lines[1] }}"
    when: setup.stdout == "something" and {{something_else}} == True

我还注意到ansible中可能存在与寄存器相关的错误。使用when语句时，即使不满足条件，register语句也会生效：

  - name: test tasks something enabled
    shell: /tmp/{{populate_script}} -u -a {{hosts}} -r
    register: variable
    when: setup.stdout == "test" and something == True

  - name: test tasks something disabled
    shell: /tmp/{{populate_script}} -u -a {{hosts}}
    register: variable
    when: setup.stdout == "test" and something == False

只会满足其中一个条件，如果满足第一个条件，则第二个条件将覆盖“变量”

ansible AttributeError: 'list' object has no attribute 'startswith'

ansible AttributeError: 'list' object has no attribute 'startswith'

ansible

ansible-2.x