13 Apr 2017
特别需要注意的是，下面内容中的转义符”\“仅仅是为了兼容语法而存在，实际使用过程中，应该要去掉
使用了两个yaml文件，通过include套用，而且两个yaml都有自己的循环
# outer yaml --- - name: yum install libselinux-python yum: name=\{\{ item }} state=present with_items: - epel-release - libselinux-python - "@Development tools" - "@base" - include: "\{\{ item }}.yml" with_items: "\{\{ server_type }}" # inner yaml --- - name: install env packages yum: name=\{\{ inner_item }} state=present with_items: - gcc - gcc-c++ - cmake - ncurses-devel - pcre-devel - openssl - openssl-devel ---
执行时提示
TASK [server_initialize : install env packages] ******************************** [WARNING]: The loop variable 'item' is already in use. You should set the `loop_var` value in the `loop_control` option for the task to something else to avoid variable collisions and unexpected behavior.
给inner yaml的loop_control中配置一个不一样的loop_var
# inner yaml --- - name: install env packages yum: name=\{\{ inner_item }} state=present with_items: - gcc - gcc-c++ - cmake - ncurses-devel - pcre-devel - openssl - openssl-devel loop_control: loop_var: inner_item ---
其实这个bug已经被修复，以前这个bug会把outer yaml中的item变量传递给inner yaml，导致inner yaml中的item变量被覆盖，但是现在不会被覆盖了，不过还是推荐大家注意修改不同的循环变量，以防发生灵异事件