docker - Ansible中--all如何区分是否剪裁Docker镜像？

Question

在 Ansible 剧本中，我们可以请求相当于调用的内容

docker image prune

通过这个:

- name: Clean up Docker images
  docker_prune:
    images: yes

但是，似乎没有办法请求--all，即修剪所有未在容器中使用的图像。无论如何，默认情况下它不会这样做:

TASK [role : Clean up Docker images] ***
ok: [server] => {
    "changed": false, 
    "images": [], 
    "images_space_reclaimed": 0
}

显然，images_filters 具有不直接对应于 CLI Docker 选项的选项:

A dictionary of filter values used for selecting images to delete.For example, dangling: true.See the docker documentation for more information on possible filters.

不幸的是，这个选项根本没有记录；删除悬挂图像是默认设置，那么 true 有什么影响呢？

我如何告诉 Ansible 执行与 docker image prune --all 等效的操作？

Answer 1

诀窍是正确猜测 dangling: true 意味着“修剪仅悬空”。因此，这个任务完成了我们想要的:

- name: Clean up Docker images
  docker_prune:
    images: yes
    images_filters:
      dangling: false

TASK [role : Clean up Docker images] ***
ok: [server] => {
  "changed": false,
  "images": [
    {
      "Untagged": "docker.io/ruby:alpine"
    },
    {
      "Untagged": "docker.io/ruby@sha256:cbcf3c98e7bd7dfd0a535c91a6c186eed483680cefe0c99ed1ed46d6efbb0e7b"
    },
    {
      "Deleted": "sha256:47c30d96ab20f3004776ff14fce824960f94dd8ba40f689a839d250befa8924e"
    },
    {
      "Deleted": "sha256:1ffdfb9e5dfb8e61532391c9624539dfe6695fa535d8dd375019ae910bc6a263"
    },
    {
      "Deleted": "sha256:59d90740fdbf9dae0a8c7e824cdb25b6636ab7c56d5d90a1ed52cc523123ef7f"
    },
    {
      "Deleted": "sha256:e0b257ffac8a68382fb702142120625ee8c7c579dd22143ac8ee02e0bb23e1eb"
    },
    {
      "Deleted": "sha256:d6fd80a889d96453e9b6b27c475952f0cc90fa6c0d1d922024cb4158362e16eb"
    },
    {
      "Deleted": "sha256:1bfeebd65323b8ddf5bd6a51cc7097b72788bc982e9ab3280d53d3c613adffa7"
    }
  ],
  "images_space_reclaimed": 51040409
}