打包机后处理器“；“未知工件类型”；合并docker标记和shell local时出错

我有以下打包机配置文件：

{
  "builders":[
    {
      "type": "docker",
      "image": "ubuntu:18.04",
      "commit": true
    }

  ],
  "post-processors": [
    [
      {
        "type": "shell-local",
        "inline": ["$(aws ecr get-login --no-include-email --region us-east-2)"]
      },
      {
        "type": "docker-tag",
        "repository": "localhost/my_image",
        "tag": "latest"
      },
      {
        "type": "docker-tag",
        "repository": "123456789.dkr.ecr.us-east-2.amazonaws.com/my_image",
        "tag": "latest"
      },
      "docker-push"
    ]
  ]
}

这给了我以下的错误

==> docker: Running post-processor: shell-local
==> docker (shell-local): Running local shell script: /var/folders/zh/wsr6wlx11v9703__rn7f3b080000gn/T/packer-shell756682313
==> docker (shell-local): WARNING! Using --password via the CLI is insecure. Use --password-stdin.
    docker (shell-local): Login Succeeded
==> docker: Running post-processor: docker-tag
Build 'docker' errored: 1 error(s) occurred:

* Post-processor failed: Unknown artifact type: 
Can only tag from Docker builder artifacts.

如果我卸下shell本地后处理器，它就会工作

在shell本地后处理器中执行何种命令也无关紧要

我试图向shell本地后处理器添加

“keep_input_artifact”：true

，但这并没有改变任何事情

---

如何在docker标记/docker推送后处理器之前执行shell本地后处理器？

我已经解决了。我必须将shell本地后处理器放在一个单独的列表中，即我必须在后处理器列表中添加另一个列表，如下所示：

"post-processors": [
    [
      {
        "type": "shell-local",
        "inline": ["$(aws ecr get-login --no-include-email --region us-east-2)"]
      }
     ],
     [
      {
        "type": "docker-tag",
        "repository": "localhost/my_image",
        "tag": "latest"
      },
      {
        "type": "docker-tag",
        "repository": "123456789.dkr.ecr.us-east-2.amazonaws.com/my_image",
        "tag": "latest"
      },
      "docker-push"
    ]
  ]
}