无法通过 Ansible 将 Cloud Formation 部署为 Jinja 模板

Question

我的角色main.yml如下所示cat ansible/playbooks/roles/patching-cf-ssm/tasks/main.yml---- include_vars: "{{playbook_dir}}/vars/patching-config.yml"  ignore_errors: yes- name: Create a Cloudformation Stack Windows  cloudformation:    stack_name: "something pleasant-static"    state: "present"    region: "{{ AWS_REGION }}"    disable_rollback: true    template_body: "{{ lookup('template', '../../cloudformation/patching/PatchBaseline.yaml.j2') }}"  #when: OStype == "WINDOWS"  with_items: "{{ my_os_baseline }}"最后，Jinja 模板如下：[ansible@ip-172-31-40-59 awsManagedServiceInstance]$ cat cloudformation/patching/PatchBaseline.yaml.j2---Resources:  WindowsBaseline:    Type: AWS::SSM::PatchBaseline    Properties:      Name: My-Managed-{{item.OS}}-Baseline      Description: {{item.OS}} Baseline for {{item.SEVERITY}} with Rating {{item.PatchFilters_Values}}      OperatingSystem: {{ item.OS }}      PatchGroups:        - {{ item.PatchGroup | indent( width=7, indentfirst=True ) }}        # - WinProdLastFri09PM01        # - WinProdLastSat09PM01        # - WinNonProdDayOne09PM01        # - WinNonProdDayTwo09PM01      ApprovalRules:        PatchRules:          - PatchFilterGroup:              PatchFilters:                - Values:                  {{ item.PatchFilters_Values | indent( width=14, indentfirst=True ) }}                  Key: {{ item.SEVERITY }}                - Values:                  {{ item.CLASSIFICATION_Values | indent( width=14, indentfirst=True ) }}                  Key: CLASSIFICATION                - Values:                    - APPLICATION                  Key: PATCH_SET            ApproveAfterDays: 7            ComplianceLevel: CRITICAL不幸的是，我收到如下错误：fatal: [localhost]: FAILED! => {"msg": "An unhandled exception occurred while running the lookup plugin 'template'. Error was a <type 'exceptions.AttributeError'>, original message: 'list' object has no attribute 'splitlines'"}不知道它首先意味着什么以及如何解决它。

Answer 1

    - {{ item.PatchGroup | indent( width=7, indentfirst=True ) }}

您正在将 a 发送list到需要换行符分隔字符串的函数中

您可以轻松重现该爆炸：

- debug:
    msg: '{{ ["alpha", "beta"] | indent( width=7, indentfirst=True ) }}'

然后同样微不足道的解决方法join是list

- debug:
    msg: '{{ ["alpha", "beta"] | join("\n") | indent( width=7, indentfirst=True ) }}'