模板化字符串时出现错误模板错误：没有名为 'json_query' 的过滤器

Question

有了这个剧本

---
- name: ReadJsonfile
  hosts: localhost
  tasks:
    
    - name: Display the JSON file content
      shell: "cat config.json"
      register: result

    - name: save the Json data to a Variable as a Fact
      set_fact:
        jsondata: "{{ result.stdout | from_json }}"

    - name: setDomainName
      set_fact:
        domain_name: "{{ jsondata | json_query(jmesquery) }}"
      vars:
        jmesquery: '[].domain[].name'

我的 Linux 服务器上有两个用户：user1 和 user2

python3.8、pip、ansible-core、ansible-base 和 jmespath 已安装。

我用 user1 登录，上面的剧本运行没问题

ansible-playbook test.yml

但是，当我使用 user2 和运行登录时，出现以下错误

TASK [setDomainName] ****************************************************************************************** Monday 21 March 2022 01:16:40 -0500 (0:00:00.140) 0:00:04.221 ********** fatal: [localhost]: FAILED! => {"msg": "template error while templating string: No filter named 'json_query'.. String: {{ jsondata | json_query(jmesquery) }}"}

注意： 当运行和 user1 时，剧本工作正常。错误是运行只有 user2 时。

我使用 user2 进行设置的方式有问题吗？

以下是 user2

的详细信息

[user2@myhost Migrator]$ ansible --version
ansible [core 2.12.3]
  config file = /etc/ansible/ansible.cfg
  configured module search path = ['/home/user2/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /home/user2/.local/lib/python3.8/site-packages/ansible
  ansible collection location = /home/user2/.ansible/collections:/usr/share/ansible/collections
  executable location = /bin/ansible
  python version = 3.8.12 (default, Mar 21 2022, 00:59:19) [GCC 4.8.5 20150623 (Red Hat 4.8.5-44)]
  jinja version = 3.0.3
  libyaml = True


[user2@myhost Migrator]$ ansible-playbook --version
ansible-playbook [core 2.12.3]
  config file = /etc/ansible/ansible.cfg
  configured module search path = ['/home/user2/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /home/user2/.local/lib/python3.8/site-packages/ansible
  ansible collection location = /home/user2/.ansible/collections:/usr/share/ansible/collections
  executable location = /bin/ansible-playbook
  python version = 3.8.12 (default, Mar 21 2022, 00:59:19) [GCC 4.8.5 20150623 (Red Hat 4.8.5-44)]
  jinja version = 3.0.3
  libyaml = True

[user2@myhost Migrator]$ pip --version
bash: pip: command not found

[user2@myhost Migrator]$ pip3 --version
WARNING: pip is being invoked by an old script wrapper. This will fail in a future version of pip.
Please see https://github.com/pypa/pip/issues/5599 for advice on fixing the underlying issue.
To avoid this problem you can invoke Python with '-m pip' instead of running pip directly.
pip 21.3.1 from /home/user2/.local/lib/python3.6/site-packages/pip (python 3.6)

[user2@myhost Migrator]$ pip3 install jmespath
WARNING: pip is being invoked by an old script wrapper. This will fail in a future version of pip.
Please see https://github.com/pypa/pip/issues/5599 for advice on fixing the underlying issue.
To avoid this problem you can invoke Python with '-m pip' instead of running pip directly.
Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: jmespath in /usr/local/lib/python3.6/site-packages (0.10.0)
[user2@myhost Migrator]$

[user2@myhost Migrator]$ python3.8 --version
Python 3.8.12

JmesPath 安装如下：

$ sudo pip3.8 install jmespath
Collecting jmespath
  Downloading jmespath-1.0.0-py3-none-any.whl (23 kB)
Installing collected packages: jmespath
Successfully installed jmespath-1.0.0
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv

你能提出解决问题的建议吗？

Answer 1

因为您确实使用 pip 包 ansible-core 和 ansible-base 安装了 Ansible，所以您没有集合 community.general，这个过滤器是其中的一部分。

您有多种选择：

使用有问题的用户登录时，安装丢失的集合：
```
ansible-galaxy collection install community.general
```

安装完整的 Ansible 包：

pip uninstall ansible-core ansible-base
pip install ansible

重新安装共享文件夹中的集合，选项 -p

ansible-galaxy collection install community.general \
    -p /usr/share/ansible/collections

模板化字符串时出现错误模板错误：没有名为 'json_query' 的过滤器

Getting error template error while templating string: No filter named 'json_query'

installation

ansible

runtime-error

jmespath

json-query