如何将字符串拆分为数组并对其进行循环？

Question

我有一个像这样的字符串变量RCD_APIS=backend,api-alerting,api-tracking,api-versioning，其中包含我的泊坞窗图像的名称。我需要将它分成一个数组并循环它，这样我就可以提取每个泊坞窗图像

我尝试过 with_sequence 循环，但我只得到索引 (1,2,3,..)

- name: pull images from registry
  docker_image:
    name: "hostname:5000/{{ RCD_APIS.split(',') }}"
    pull: true
    state: present
    tag: "{{RCD_VERSION_CURRENT}}"
  with_sequence: count={{ RCD_APIS|count }}

我也尝试过 with_item 循环，但它不起作用，所以我尝试调试：

 vars:
    - container: "{{ RCD_APIS }}"
 tasks:
    - name: pull images from registry debug
      debug: var={{item|basename}}
      with_items: container.split(',')

我得到类似的东西：

(item=container.split(',')) => {
         "container.split(',')": [
         "backend", 
         "api-alerting", 
         "api-tracking", 
         "api-versioning", 
         "connecteur-gdfa", 
         "api-batch", 
         "ihm"
     ], 
     "item": "container.split(',')"
}

那么我如何循环该数组（如 foreach）并执行docker pull backend, docker pull api-alerting...？

Answer 1

干得好：

- name: pull images from registry
  docker_image:
    name: hostname:5000/{{ item }}
    pull: true
    state: present
    tag: "{{RCD_VERSION_CURRENT}}"
  with_items: "{{ RCD_APIS.split(',') }}"