如何运行 AWS ECS 任务覆盖环境变量 [英] How to run AWS ECS Task overriding environment variables

问题描述

要通过 CLI 覆盖环境变量，我们可以根据 AWS ECS 命令行参考.

如何在命令行中传递名称值对(结构或 JSON)?

<预><代码>[{ "name" : "NAME", "value" : "123" },{名称":日期"，值":1234-12-12"}，{名称":脚本"，值":123456"}]

我正在寻找一种使用 AWS ECS CLI 覆盖上述环境变量的方法.类似的东西:

aws ecs run-task --overrides <<这里只是环境变量>>--任务定义...

文档不清楚.我用谷歌搜索但无济于事.

解决方案

您必须提供 --overrides 选项.

<代码>{容器覆盖":[{"name": "字符串",命令":[字符串"，...]，环境": [{"name": "字符串",值":字符串"}...]}...],taskRoleArn":字符串"}

您必须指定容器的 name 以获取环境覆盖，并指定一个 environment 键值对列表.

您可以在参数中指定 JSON 文档，或将文件路径参数传递给任务.我将展示两种方式.

内联传递 JSON

您的命令看起来像这样(填写值 CONTAINER_NAME_FROM_TASK).

aws ecs run-task --overrides '{ "containerOverrides": [ { "name": "CONTAINER_NAME_FROM_TASK", "environment": [ { "name": "NAME", "value": "123" }, { "name": "DATE", "value": "1234-12-12" }, { "name": "SCRIPT", "value": "123456" } ] } ] }' --task-定义 (...)

虽然看起来很丑，编辑起来很烦人.它也仅适用于 Unix-y 系统，并且需要在 Windows 中转义引号.

或者，您可以将文件路径传递给 AWS CLI，并让它从文件加载您的覆盖 JSON.

传递文件路径参数

创建一个文件，我们称之为overrides.json，并将相同的JSON放入其中:

<代码>{容器覆盖":[{"name": "CONTAINER_NAME_FROM_TASK",环境": [{"name": "NAME",值":123"}, {名称日期"，值":1234-12-12"}, {"name": "脚本",值":123456"}]}]}

然后，假设您的文件位于当前目录:

aws ecs run-task --overrides file://overrides.json --task-definition (..)

如果您的文件在文件系统的其他位置，并且您使用的是 Linux/Unix-y 系统:

aws ecs run-task --overrides file:///path/to/overrides.json --task-definition (..)

如果您的文件位于文件系统中的其他位置，而您是在 Windows 中执行此操作:

aws ecs run-task --overrides file://DRIVE_LETTER:path	ooverrides.json --task-definition (..)

To override environment variables via CLI we may use --overrides (structure) according to AWS ECS Commandline Reference.

How to pass name value pairs (structure or JSON) in command line?

[
  { "name" : "NAME", "value" : "123" },
  { "name" : "DATE", "value" : "1234-12-12" },
  { "name" : "SCRIPT", "value" : "123456" }
]

I'm looking for a way to override above environment variables using AWS ECS CLI. Something like:

aws ecs run-task --overrides <<just environment vars here>> --task-definition ...

Documentation is not clear. I googled but couldn't help.

解决方案

You have to provide a JSON document as documented under the --overrides option.

{
  "containerOverrides": [
    {
      "name": "string",
      "command": ["string", ...],
      "environment": [
        {
          "name": "string",
          "value": "string"
        }
        ...
      ]
    }
    ...
  ],
  "taskRoleArn": "string"
}

You have to specify the name of the container to get the environment override, and specify a list of environment key-value pairs.

You can specify the JSON document in-line with your argument or pass a file path argument to the task. I will show both ways.

Passing JSON in-line

Your command would look like this (fill in the value CONTAINER_NAME_FROM_TASK).

aws ecs run-task --overrides '{ "containerOverrides": [ { "name": "CONTAINER_NAME_FROM_TASK", "environment": [ { "name": "NAME", "value": "123" }, { "name": "DATE", "value": "1234-12-12" }, { "name": "SCRIPT", "value": "123456" } ] } ] }' --task-definition (...)

That does look rather ugly though, and would be annoying to edit. It also only works on Unix-y systems and would require quote escaping in Windows.

So alternatively, you can pass a file path to the AWS CLI and have it load your override JSON from a file.

Passing a file path argument

Create a file, let's call it overrides.json, and put the same JSON into it:

{
    "containerOverrides": [{
        "name": "CONTAINER_NAME_FROM_TASK",
        "environment": [{
            "name": "NAME",
            "value": "123"
        }, {
            "name": "DATE",
            "value": "1234-12-12"
        }, {
            "name": "SCRIPT",
            "value": "123456"
        }]
    }]
}

Then, assuming your file is in the current directory:

aws ecs run-task --overrides file://overrides.json --task-definition (..)

If your file is elsewhere in the filesystem and you're on a Linux/Unix-y system:

aws ecs run-task --overrides file:///path/to/overrides.json --task-definition (..)

If your file is elsewhere in the filesystem and you're doing this in Windows:

aws ecs run-task --overrides file://DRIVE_LETTER:path	ooverrides.json --task-definition (..)

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