必需的

一个基本的角色，用于检查变量是否已设置以及路径是否存在。此角色旨在在剧本中首先运行，以便快速失败，而不是等待需要该变量或路径的任务执行时才失败。

要求

无

角色变量

没有默认的变量设置，但如果发现以下任一项，则会进行指定的断言。

# 如果设置，则检查变量是否已定义且长度不为零
required_vars
# 如果设置，则检查本地路径是否存在
required_local_paths
# 如果设置，则检查每个远程主机的路径是否存在
required_remote_paths

依赖关系

无

示例剧本

- name: 验证先决条件
  include_role:
    name: nick_invision.required
  vars:
    required_vars:
      - an_important_var
      - another_important_var

- name: 验证先决条件
  include_role:
    name: nick_invision.required
  vars:
    required_local_paths:
      - ~/something/locally/important.txt
      - something/locally/relatively/important.txt
      - /something/locally/absolutely/important.txt

- name: 验证先决条件
  include_role:
    name: nick_invision.required
  vars:
    required_remote_paths:
      - ~/something/remote/important.txt
      - something/remote/relatively/important.txt
      - /something/remote/absolutely/important.txt

- name: 验证先决条件
  include_role:
    name: nick_invision.required
  vars:
    required_vars:
      - an_important_var
      - another_important_var
    required_local_paths:
      - ~/something/locally/important.txt
      - something/locally/relatively/important.txt
      - /something/locally/absolutely/important.txt
    required_remote_paths:
      - ~/something/remote/important.txt
      - something/remote/relatively/important.txt
      - /something/remote/absolutely/important.txt

许可证

MIT